TOSHIHIKO KATO
| Emeritus Professor etc. | Emeritus Professor |
- Profile:
Engaged in research activities on communication protocols, including TCP, Mobile IP, Multicast, Ad hoc network, and Wireless LAN.
Researcher Information
Research Keyword
Educational Background
Research Activity Information
Paper
- リカレントニューラルネットワークを用いた双方向通信ログに基づくTCP輻輳制御の推定方式
大関尚紀; 山本嶺; 大坐畠智; 加藤聰彦
情報処理学会論文誌, 61, 2, 287-296, Feb. 2020, Peer-reviwed
Scientific journal, Japanese - Flying Control of Multiple UAVs through Wireless Ad-Hoc Network
Takayuki Kashiwa; Ryo Yamamoto; Satoshi Ohzahata; Toshihiko Kato
Proceedings of 3rd International Conference on Communication and Network Technology (ICCNT 2019), 1-7, Sep. 2019, Peer-reviwed
International conference proceedings, English - Implementation and Performance Evaluation of Eavesdropping Protection Method over MPTCP Using Data Scrambling and Path Dispersion
Toshihiko Kato; Shihan Cheng; Ryo Yamamoto; Satoshi Ohzahata; Nobuo Suzuki
International Journal on Advances in Security, 12, 1, 69-78, Jul. 2019, Peer-reviwed
Scientific journal, English - A Study on Round-trip Time Estimation from Unidirectional Packet Traces Using Different TCP Congestion Control Algorithms
Toshihiko Kato; Xiaofan Yan; Ryo Yamamoto; Satoshi Ohzahata
International Journal On Advances in Networks and Services, 12, 1, 1-9, Jul. 2019, Peer-reviwed
Scientific journal, English - Experimental Analysis of MPTCP Congestion Control Algorithms: LIA, OLIA and BALIA
Toshihiko Kato; Adhikari Diwakar; Ryo Yamamoto; Satoshi Ohzahata; Nobuo Suzuki
Proceedings of 8th International Conference on Theory and Practice in Modern Computing (TPMC 2019), 105-112, Jul. 2019, Peer-reviwed
International conference proceedings, English - Performance Evaluation of Named Data Networking Based Ad Hoc Network Focusing on Node Moving
Ngo Quang Minh; Ryo Yamamoto; Satoshi Ohzahata; Toshihiko Kato
Proceedings of 15th Advanced International Conference on Telecommunications (AICT 2019), 46-51, Jul. 2019, Peer-reviwed
International conference proceedings, English - Estimating TCP Congestion Control Algorithms from Passively Collected Packet Traces Using Recurrent Neural Network
Naoki Ohzeki; Ryo Yamamoto; Satoshi Ohzahata; Toshihiko Kato
Proceedings of 10th International Conference on Data Communication Networking (DCNET 2019), 33-42, Jul. 2019, Peer-reviwed
International conference proceedings, English - 輻輳ウィンドウとその増加分に着目したパッシブなTCP輻輳制御アルゴリズムの推定方法
加藤 聰彦; 小田 淳; 厳 笑凡; 山本 嶺; 大坐畠 智
情報処理学会論文誌, 情報処理学会, 60, 2, 479-490, Feb. 2019, Peer-reviwed
Scientific journal, Japanese - Impacts of System Clock Granularity on Performance of NDN Rate-based Congestion Control
Toshihiko Kato; Kazuki Osada; Ryo Yamamoto; Satoshi Ohzahata
International Journal On Advances in Telecommunications, IARIA, 11, 3&4, 135-143, Jan. 2019, Peer-reviwed
Scientific journal, English - Performance Evaluation of TCP Spurious Timeout Detection Methods under Delay Spike and Packet loss Emulating LTE Handover
Toshihiko Kato; Masahito Moriyama; Ryo Yamamoto; Satoshi Ohzahata
IADIS International Journal on Computer Science and Information Systems, IADIS, 13, 2, 16-29, Dec. 2018, Peer-reviwed
Scientific journal, English - How to Implement NDN MANET over ndnSIM Simulator
Toshihiko Kato; Ngo Quang Minh; Ryo Yamamoto; Satoshi Ohzahata
IEEE 4th International Conference on Computer Communications (ICCC 2018), 451-456, Dec. 2018, Peer-reviwed
International conference proceedings, English - Implementation of Eavesdropping Protection Method over MPTCP Using Data Scrambling and Path Dispersion
Toshihiko Kato; Shihan Cheng; Ryo Yamamoto; Satoshi Ohzahata; Nobuo Suzuki
Proceedings of The Twelfth International Conference on Emerging Security Information, Systems and Technologies (SECURWARE 2018), 108-113, Sep. 2018, Peer-reviwed
International conference proceedings, English - Identification of TCP Congestion Control Algorithms from Unidirectional Packet Traces
Toshihiko Kato; Xiaofan Yan; Ryo Yamamoto; Satoshi Ohzahata
Proceedings of 2nd International Conference on Communication and Network Technology (ICCNT 2018), 1-6, Sep. 2018, Peer-reviwed
International conference proceedings, English - Experimental Analysis and Resolution Proposal on Performance Degradation of TCP over IEEE 802.11n Wireless LAN Caused by Access Point Scanning
Toshihiko Kato; Kento Kobayashi; Sota Tasaki; Masataka Nomoto; Ryo Yamamoto; Satoshi Ohzahata
International Journal On Advances in Telecommunications, 11, 1&2, 10-19, Jul. 2018, Peer-reviwed
Scientific journal, English - Proposal and Performance Analysis of Hybrid NDN Based Ad Hoc Routing Combining Proactive and Reactive Mechanisms
Ngo Quang Minh; Ryo Yamamoto; Satoshi Ohzahata; Toshihiko Kato
International Journal On Advances in Networks and Services, 11, 1&2, 1-10, Jul. 2018, Peer-reviwed
Scientific journal, English - Proposal and Study on Implementation of Data Eavesdropping Protection Method over Multipath TCP Communication Using Data Scrambling and Path Dispersion
Toshihiko Kato; Shihan Cheng; Ryo Yamamoto; Satoshi Ohzahata; Nobuo Suzuki
International Journal On Advances in Security, 11, 1&2, 118-126, Jul. 2018, Peer-reviwed
Scientific journal, English - IEEE802.11ac無線LANのMU-MIMOダウンリンク伝送における動的フレームアグリゲーションサイズ選択によるスループット改善手法
森山 友和; 山本 嶺; 大坐畠 智; 加藤 聰彦
電子情報通信学会論文誌 B, J101-B, 7, 1-12, Jul. 2018, Peer-reviwed
Scientific journal, Japanese - Experimental Analysis of Spurious Timeout Detection Methods with LTE Handover Emulation
Toshihiko Kato; Masahito Moriyama; Ryo Yamamoto; Satoshi Ohzahata
Proceedings of 7th International Conference on Theory and Practice in Modern Computing (TPMC 2018), 105-112, Jul. 2018, Peer-reviwed
International conference proceedings, English - Applying Lomb Periodogram to Round-trip Time Estimation from Unidirectional Packet Traces with Different TCP Congestion Controls
Toshihiko Kato; Xiaofan Yan; Ryo Yamamoto; Satoshi Ohzahata
Proceedings of The Thirteenth International Conference on Internet Monitoring and Protection (ICIMP 2018), 1-6, Jul. 2018, Peer-reviwed
International conference proceedings, English - Reducing Link Failure Test Cases for Telecom Networks by Focusing on Topological Similarity
Megumi Shibuya; Toshihiko Kato; Teruyuki Hasegawa; Hirozumi Yamaguchi
Proceedings of The Fourteenth Advanced International Conference on Telecommunications (AICT 2018), 46-51, Jul. 2018, Peer-reviwed
International conference proceedings, English - TCP Congestion Control over IEEE 802.11 Wireless LANs Based on K-means Clustering Focusing on Congestion Window Size and Round-trip Time
Tomokazu Moriyama; Ryo Yamamoto; Satoshi Ohzahata; Toshihiko Kato
Proceedings of 9th International Conference on Data Communication Networking (DCNET 2018), 25-32, Jul. 2018, Peer-reviwed
International conference proceedings, English - A Study on How Coarse-grained Clock System Influences NDN Rate-based Congestion Control
Toshihiko Kato; Kazuki Osada; Ryo Yamamoto; Satoshi Ohzahata
Proceedings of The Seventeenth International Conference on Networks (ICN 2018), 35-40, Apr. 2018, Peer-reviwed
International conference proceedings, English - How Insufficient Send Socket Buffer Affects MPTCP Performance over Paths with Different Delay
Toshihiko Kato; Adhikari Diwakar; Ryo Yamamoto; Satoshi Ohzahata
6th World Conference on Information Systems and Technologies (WorldCist ’18), 614-624, Mar. 2018, Peer-reviwed
International conference proceedings, English - A Solution for Bufferbloat Problem in Upload TCP Communication over IEEE 802.11n WLAN Only by Modifying Access Point
Masataka Nomoto; Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
The Sixth International Conference on Communications, Computation, Networks and Technologies (INNOV 2017), 8-13, Oct. 2017, Peer-reviwed
International conference proceedings, English - Protecting Eavesdropping over Multipath TCP Communication Based on Not-Every-Not-Any Protection
Toshihiko Kato; Shihan Cheng; Ryo Yamamoto; Satoshi Ohzahata; Nobuo Suzuki
The Eleventh International Conference on Emerging Security Information, Systems and Technologies (SECURWARE 2017), 87-92, Sep. 2017, Peer-reviwed
International conference proceedings, English - A QoS Aware Ad Hoc Multicast by Combining TDMA and IEEE 802.11 DCF
Jing Lin; Ryo Yamamoto; Satoshi Ohzahata; Toshihiko Kato
International Conferences Computer Graphics, Visualization, Computer Vision and Image Processing 2017 and Big Data Analysis, Data Mining and Computational Intelligence 2017, 204-211, Jul. 2017, Peer-reviwed
International conference proceedings, English - Frame Aggregation Size Determination for IEEE 802.11ac WLAN Considering Channel Utilization and Transfer Delay
Tomokazu Moriyama; Ryo Yamamoto; Satoshi Ohzahata; Toshihiko Kato
14th International Conference on Wireless Networks and Mobile Systems (WINSYS 2017), 89-94, Jul. 2017, Peer-reviwed
International conference proceedings, English - A Routing Protocol Proposal for NDN Based Ad Hoc Networks Combining Proactive and Reactive Routing Mechanisms
Ngo Quang Minh; Ryo Yamamoto; Satoshi Ohzahata; Toshihiko Kato
The Thirteenth Advanced International Conference on Telecommunications (AICT 2017), 80-86, Jun. 2017, Peer-reviwed
International conference proceedings, English - Resolving Bufferbloat in TCP Communication over IEEE 802.11n WLAN by Reducing MAC Retransmission Linit at Low Data Rate
Masataka Nomoto; Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
Sixteenth International Conference on Networks (ICN 2017), 69-74, Apr. 2017, Peer-reviwed
International conference proceedings, English - IEEE 802.11n無線LANのアップロードTCP通信におけるBufferbloat問題に対するアクセスポイントでの対応方式
野元 祐孝; 策力木格; 大坐畠智; 加藤 聰彦
情報処理学会論文誌, 情報処理学会, 58, 2, 427-438, 01 Feb. 2017, Peer-reviwed, IEEE 802.11n無線アクセスポイントを経由するTCP通信では，低いMACレベルデータレートが使用される場合に，往復遅延が増加するBufferbloat問題が発生し，同じキューを共通する他の通信の遅延時間が増加し，ユーザレベルの品質の悪化となる．この対処として，アクティブキュー管理方式，筆者らが先に示した無線LANの最大再送回数を制限する方法，遅延増加時にTCP通信を停止する方法などが提案されている．しかしこれらはすべて，データの送信側に実装する必要がある．このため，端末からアクセスポイントへのアップロード転送においては，端末のすべてにこのような方式を導入しなければならない．そこで本稿では，データの受信側であるアクセスポイントにおいて，低いMACレベルデータレートで無線LANフレームの最大再送回数を制限したと同様な効果を与えることにより，TCPの輻輳ウィンドウを減少させ，Bufferbloat問題に対応する方法を提案する．パソコンを用いたアクセスポイントに提案方式を実装することにより，Bufferbloat問題に対応していない端末で，低いMACレベルデータレートでの往復遅延を減少させられること，さらにBufferbloat問題に対する方法を実装している端末においてもTCP通信のスループットを悪化させることがないことを明らかにした．IEEE 802.11n wireless LANs provides a Bufferbloat problem such that the round-tirp delay increases in TCP communications when the MAC level data is low such as 6.5Mbps. This problem degrades user level quality of service for communications sharing the transmission queue with the TCP communications. In order to resolve this problem, several schemes are proposed such as a scheme based on active queue management, our previous scheme reducing the retry-out limit at low data rate, and a scheme stopping sending TCP level data when the queue contains more than a specific number of packes. However, those schemes need to be implemented at the sender side. In this paper, we propose a new scheme resolving a Bufferbloat problem in the upload TCP communications by providing an effect at a receiving side access point similar to reducing the retry-out limit when the MAC level data rate is low. This decreases the congestion window size in the sending side and can reduce the delay. This paper also shows the results of the performance evaluation by implementing the proposed method in a PC based access point. According to the results, the proposed method decreases the round-trip time in the low MAC data rate and does not reduce the TCP throughput. It does not give any influences on the TCP thoughput for the terminals supporting the conventional schemes for Bufferbroat problems.
Scientific journal, Japanese - A TDMA/DCF Hybrid QoS Scheme for Ad Hoc Networks
Jing Lin; Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
IEICE TRANSACTIONS ON COMMUNICATIONS, E100B, 1, 42-53, Jan. 2017, Peer-reviwed
Scientific journal, English - A Hierarchical Opportunistic Routing with Moderate Clustering for Ad Hoc Networks
Ryo Yamamoto; Satoshi Ohzahata; Toshihiko Kato
IEICE TRANSACTIONS ON COMMUNICATIONS, E100B, 1, 54-66, Jan. 2017, Peer-reviwed
Scientific journal, English - Experimental Analysis on How Access Point Scanning Impacts on TCP Throughput over IEEE 802.11n Wireless LAN
Kento Kobayashi; Yoshiki Hashimoto; Ryo Yamamoto; Satoshi Ohzahata; Toshihiko Kato
Twelfth International Conference on Wireless and Mobile Communications (ICWMC 2016), 115-120, Nov. 2016, Peer-reviwed
International conference proceedings, English - Microscopic Approach for Experimental Analysis of Multipath TCP Troughput under Insufficient Send/Receive Socket Buffers
Toshihiko Kato; Masaaki Tenjin; Ryo Yamamoto; Satoshi Ohzahata; Hiroyuki Shinbo
15th International Conference WWW/Internet 2016 (ICWI 2016), 191-199, Oct. 2016, Peer-reviwed
International conference proceedings, English - Performance Anomaly in Download TCP Flows Over IEEE 802.11n Wireless LAN
Yoshiki Hashimoto; Masataka Nomoto; Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
The Fifth International Conference on Communications, Computation, Networks and Technologies (INNOV 2016), 13-18, Aug. 2016, Peer-reviwed
International conference proceedings, English - How to Utilize Interflow Network Coding in VANETs: A Backbone-Based Approach
Celimuge Wu; Satoshi Ohzahata; Yusheng Ji; Toshihiko Kato
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS, 17, 8, 2223-2237, Aug. 2016, Peer-reviwed
Scientific journal, English - iBGP Solution by Combining Route Reflection and Shared Tree Based Multicast
Toshihiko Kato; Yao Koffi; Hubert Wilfried; Celimuge Wu; Satoshi Ohzahata
5th International Conference on Theory and Practice in Modern Computing (TPMC 2016), 203-210, Jul. 2016, Peer-reviwed
International conference proceedings, English - Improving the Tor Traffic Distribution with Circuit Switching Method
Timothy Girry Kale; Satoshi Ohzahata; Celimuge Wu; Toshihiko Kato
IEEE HPSR 2016, 1-2, Jun. 2016, Peer-reviwed
International conference proceedings, English - A Study on How to Characterize TCP Congestion Control Algorithms from Unidirectional Packet Traces
Toshihiko Kato; Leelianou Yongxialee; Ryo Yamamoto; Satoshi Ohzahata
The Eleventh International Conference on Internet Monitoring and Protection (ICIMP 2016), 23-28, May 2016, Peer-reviwed
International conference proceedings, English - A Practical and Efficient Overhearing Strategy for Reliable Content Distribution over a Single Hop Ad Hoc Network
Hiroaki Yokose; Koji Nitta; Satoshi Ohzahata; Toshihiko Kato
IPSJ, 情報処理学会, 24, 2, 292-301, Feb. 2016, Peer-reviwed, Nowadays, wireless LAN is equipped in most portable devices and widely deployed, and then we can communicate over wireless link with low cost. However, when the same content is simultaneously downloaded by several terminals with unicast in a wireless LAN, the bandwidth must be divided among the terminals and the download speed is reduced. With using the broadcast nature of wireless media, pseudo multicasting methods, which overhear the unicast flow to realize multicast like communication, have been proposed. In the pseudo multicasting methods, since parts of the content is obtained by overhearing the TCP/UDP flows of a specific content going to other terminals in a wireless LAN, and the server need not send the content for each client repeatedly. These methods enable to realize multicasting with a practical way. However, redundant unicast traffic is still generated because the receivers do not obtain contents via overhearing in an efficient way. Based on the pseudo multicasting, we propose an efficient, flexible and reliable content distribution method over single hop wireless ad hoc network in this paper. In the proposed method a content is divided into pieces and the server distributes it according to the download status of each receivers at the application level. To accelerate downloading, we propose a method for selecting the piece and the terminal for transmission taking the effect of network coding for efficient overhearing. We developed a testbed and confirmed that the proposed scheduling accelerates the download speed even when the communication speed of each terminal is different.
Scientific journal, English - Experimental Analysis on Performance Anomaly for Download Data Transfer at IEEE 802.11n Wireless LAN
Yoshiki Hashimoto; Masataka Nomoto; Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
ICN 2016, 22-27, Feb. 2016, Peer-reviwed
International conference proceedings, English - Evaluating Tor Modified Switching Algorithm in the Emulation Environment
Timothy Girry Kale; Satoshi Ohzahata; Celimuge Wu; Toshihiko Kato
2016 22ND ASIA-PACIFIC CONFERENCE ON COMMUNICATIONS (APCC), 510-516, 2016, Peer-reviwed
International conference proceedings, English - Towards Practical and Intelligent Routing in Vehicular Ad Hoc Networks
Celimuge Wu; Yusheng Ji; Fuqiang Liu; Satoshi Ohzahata; Toshihiko Kato
IEEE Transactions on Vehicular Technology, IEEE, 64, xx, 1-17, Dec. 2015, Peer-reviwed
Scientific journal, English - Sequential Combination of Two Classifier Algorithms for Binary Classification to Improve the Accuracy
Sornxayya Phetlasy; Satoshi Ohzahata; Celimuge Wu; Toshihiko Kato
WANC in Candar 2015, 576-580, Dec. 2015, Peer-reviwed
International conference proceedings, English - Efficient Broadcasting in VANETs Using Dynamic Backbone and Network Coding
Celimuge Wu; Xianfu Chen; Yusheng Ji; Satoshi Ohzahata; Toshihiko Kato
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 14, 11, 6057-6071, Nov. 2015, Peer-reviwed
Scientific journal, English - Comparing TCP Congestion Control Algorithms Based on Passively Collected Packet Traces
Toshihiko Kato; Atsushi Oda; Celimuge Wu; Satoshi Ohzahata
ICSNC 2015, 135-141, Nov. 2015, Peer-reviwed
International conference proceedings, English - Reducing Congestion in the Tor Network with Circuit Switching
Timothy Girry Kale; Satoshi Ohzahata; Celimuge Wu; Toshihiko Kato
Journal of Information Processing, 情報処理学会, 23, 5, 589-602, Sep. 2015, Peer-reviwed
Scientific journal, English - A Packet Size-aware Multi-hop Broadcast Protocol for VANETs Based on Adaptive Redundancy
Celimuge Wu; Xianfu Chen; Yusheng Ji; Satoshi Ohzahata; Toshihiko Kato
The 24th International Conference on Computer Communications and Networks (ICCCN), xx, xx, 1-8, Aug. 2015, Peer-reviwed
International conference proceedings, English - Performance Evaluation of Time Slot Based QoS Aware Ad Hoc Network Scheme for CBR and TCP Flows
Jing Lin; Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
Asia-Pacific Network Operations and Management Symposium (APNOMS), xx, xx, 1-6, Aug. 2015, Peer-reviwed
International conference proceedings, English - A Routing Protocol for VANETs with Adaptive Frame Aggregation and Packet Size Awareness
Celimuge Wu; Yusheng Ji; Satoshi Ohzahata; Toshihiko Kato
IEEE International Conference on Communications (ICC), xx, xx, 8193-8198, Jun. 2015, Peer-reviwed
International conference proceedings, English - Joint Fuzzy Relays and Network-Coding-Based Forwarding for Multihop Broadcasting in VANETs
Celimuge Wu; Satoshi Ohzahata; Yusheng Ji; Toshihiko Kato
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS, 16, 3, 1415-1427, Jun. 2015, Peer-reviwed
Scientific journal, English - An Intelligent Broadcast Protocol for VANETs Based on Transfer Learning
Celimuge Wu; Xianfu Chen; Yusheng Ji; Satoshi Ohzahata; Toshihiko Kato
IEEE 81st Vehicular Technology Conference (VTC2015-Spring), xx, xx, 1-6, May 2015, Peer-reviwed
International conference proceedings, English - Design of EV Common Service Platform
Jing Wei; Jinglin Li; Zhihan Liu; Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
The 2015 Fourth ICT International Student Project Conference, xx, xx, 1-4, May 2015, Peer-reviwed
International conference proceedings, English - Future Channel Utilization-Aware Routing for Cognitive Radio Ad Hoc Networks
Celimuge Wu; Juan Xu; Yusheng Ji; Satoshi Ohzahata; Toshihiko Kato
IEICE TRANSACTIONS ON COMMUNICATIONS, E98B, 1, 107-115, Jan. 2015, Peer-reviwed
Scientific journal, English - Can DTN Improve the Performance of Vehicle-to-roadside Communication?
Celimuge Wu; Yusheng Ji; Satoshi Ohzahata; Toshihiko Kato
2015 IEEE 26TH ANNUAL INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR, AND MOBILE RADIO COMMUNICATIONS (PIMRC), 1934-1939, 2015, Peer-reviwed
International conference proceedings, English - Packet Size-Aware Broadcasting in VANETs With Fuzzy Logic and RL-Based Parameter Adaptation
Celimuge Wu; Xianfu Chen; Yusheng Ji; Fuqiang Liu; Satoshi Ohzahata; Tsutomu Yoshinaga; Toshihiko Kato
IEEE ACCESS, 3, 2481-2491, 2015, Peer-reviwed
Scientific journal, English - Making Inter-flow Network Coding Possible for Unicast Routing in VANETs
Celimuge Wu; Satoshi Ohzahata; Yusheng Ji; Toshihiko Kato
2014 International Conference on Connected Vehicles & Expo, xx, xx, 1-7, Nov. 2014, Peer-reviwed
International conference proceedings, English - Inferring TCP Congestion Control Algorithms by Correlating Congestion Window Sizes and their Differences
Toshihiko Kato; Atsushi Oda; Shun Ayukawa; Celimuge Wu; Satoshi Ohzahata
Proceedings of The Ninth International Conference on Systems and Networks Communications (ICSNC 2014), xx, xx, 42-47, Oct. 2014, Peer-reviwed
International conference proceedings, English - A Distributed Dynamic Channel Assignment and Routing Framework for Cognitive Sensor Systems
Celimuge Wu; Satoshi Ohzahata; Yusheng Ji; Toshihiko Kato
IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS, E97D, 10, 2613-2622, Oct. 2014, Peer-reviwed
Scientific journal, English - A QoS Supporting Ad Hoc Networks Combing Admission Based TDMA and 802.11 DCF
Jing Lin; Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
Proceedings of Asia-Pacific Network Operations and Management Symposium (APNOMS), xx, xx, 1-4, Sep. 2014, Peer-reviwed
International conference proceedings, English - Coded packets over lossy links: A redundancy-based mechanism for reliable and fast data collection in sensor networks
Celimuge Wu; Yusheng Ji; Juan Xu; Satoshi Ohzahata; Toshihiko Kato
COMPUTER NETWORKS, 70, 179-191, Sep. 2014, Peer-reviwed
Scientific journal, English - TCP Performance Problem on timeout retransmission Triggered by Bursty packet Losses
Weikai Wang; Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
Proceedings of IADIS Theory and Practice in Modern Computing 2014 (TPMC 2014), xx, xx, 141-148, Jul. 2014, Peer-reviwed
International conference proceedings, English - Toward a Totally Distributed Flat Location Service for Vehicular Ad Hoc Networks
Celimuge Wu; Satoshi Ohzahata; Yusheng Ji; Toshihiko Kato
Proceedings of IEEE 79th Vehicular Technology Conference (VTC2014-Spring), IEEE, xx, xx, 1-6, May 2014, Peer-reviwed
International conference proceedings, English - Experimental Analysis of TCP Behaviors against Bursty Packet Losses Caused by Transmission Interruption
Weikai Wang; Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
The Thirteenth International Conference on Networks, xx, xx, 136-141, Feb. 2014, Peer-reviwed
International conference proceedings, English - 無線LAN におけるアクセスポイントと端末の協調による送信機会確保のためのメディアアクセス制御
熊谷雄太; 大坐畠 智; 加藤聰彦
電子情報通信学会 和文論文誌Ｂ, 電子情報通信学会, J97-B, 2, 110-119, Feb. 2014, Peer-reviwed
Scientific journal, Japanese - A MAC Protocol for Delay-sensitive VANET Applications With Self-learning Contention Scheme
Celimuge Wu; Satoshi Ohzahata; Yusheng Ji; Toshihiko Kato
IEEE 11th Consumer Communications and Networking Conference (CCNC), xx, xx, 729-734, Jan. 2014, Peer-reviwed
International conference proceedings, English - Resolving bufferbloat problem in 802.11n WLAN by weakening MAC loss recovery for TCP stream
Masataka Nomoto; Toshihiko Kato; Celimuge Wu; Satoshi Ohzahata
Proceedings of the IASTED International Conference on Parallel and Distributed Computing and Networks, PDCN 2014, Acta Press, xx, xx, 293-300, 2014, Peer-reviwed
International conference proceedings, English - Joint MAC and Network Layer Control for VANET Broadcast Communications Considering End-to-end Latency
Celimuge Wu; Satoshi Ohzahata; Yusheng Ji; Toshihiko Kato
2014 IEEE 28TH INTERNATIONAL CONFERENCE ON ADVANCED INFORMATION NETWORKING AND APPLICATIONS (AINA), xx, xx, 689-696, 2014, Peer-reviwed
International conference proceedings, English - Providing Fast Broadcasting by Reserving Time Slots for Multi-hop Distance in VANETs
Celimuge Wu; Satoshi Ohzahata; Yusheng Ji; Toshihiko Kato
2014 INTERNATIONAL WIRELESS COMMUNICATIONS AND MOBILE COMPUTING CONFERENCE (IWCMC), xx, xx, 213-218, 2014, Peer-reviwed
International conference proceedings, English - Practical Solution for Broadcasting in VANETs using Neighbor Information
Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
IEICE Transactions on Communications, E96-B, 11, 2856-2864, Nov. 2013, Peer-reviwed
Scientific journal, English - Flexible, Portable, and Practicable Solution for Routing in VANETs: A Fuzzy Constraint Q-Learning Approach
Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 62, 9, 4251-4263, Nov. 2013, Peer-reviwed
Scientific journal, English - A low latency path diversity mechanism for sender-oriented broadcast protocols in VANETs
Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
Ad Hoc Networks, 11, 7, 2059-2068, Sep. 2013, Peer-reviwed
Scientific journal, English - Data Dissemination with Dynamic Backbone Selection in Vehicular Ad Hoc Networks
Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
IEEE 78th Vehicular Technology Conference, xx, xx, 1-6, Sep. 2013, Peer-reviwed
International conference proceedings, English - Can We Generate Efficient Routes by Using Only Beacons? Backbone Routing in VANETs
Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), xx, xx, 2944-2949, Sep. 2013, Peer-reviwed
International conference proceedings, English - Effectiveness of Performance Flag Selection for Enhancing the Tor Circuit
Timothy Girry Kale; Satoshi Ohzahata; Celimuge Wu; Toshihiko Kato
Asia-Pacific Network Operations and Management Symposium (APNOMS), xx, xx, 1-3, Sep. 2013, Peer-reviwed
International conference proceedings, English - An Improvement of OLSR Using Fuzzy Logic Based MPR selection
Narangerel Dashbyamba; Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
Asia-Pacific Network Operations and Management Symposium (APNOMS), xx, xx, 1-6, Sep. 2013, Peer-reviwed
International conference proceedings, English - Optimization of Area Splitting To Minimize OSPF LSA Exchange
Toshihiko Kato; Tsukasa Miyamae; Celimuge Wu; Satoshi Ohzahata
IADIS Theory and Practice in Modern Computing, xx, xx, 11-18, Jul. 2013, Peer-reviwed
International conference proceedings, English - Joint MAC Network Layer Broadcast Protocol for Vehicular Ad Hoc Networks
Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
IEEE International Conference on Communications Workshops, xx, xx, 505-509, Jun. 2013, Peer-reviwed
International conference proceedings, English - Network Coding Assisted Cooperative Relay Scheme for Sender-oriented Broadcast in VANETs
Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
Proceedings of IEEE Wireless Communications and Networking Conference (WCNC), xx, xx, xx, Apr. 2013, Peer-reviwed
International conference proceedings, English - A Loss-tolerant Scheme for Unicast Routing in VANETs using Network Coding
Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
2013 9TH INTERNATIONAL WIRELESS COMMUNICATIONS AND MOBILE COMPUTING CONFERENCE (IWCMC), xx, xx, 1058-1063, 2013, Peer-reviwed
International conference proceedings, English - A routing protocol for cognitive radio ad hoc networks giving consideration to future channel assignment
Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
Proceedings - 2013 1st International Symposium on Computing and Networking, CANDAR 2013, xx, xx, 227-232, 2013, Peer-reviwed
International conference proceedings, English - A reliable and flexible data gathering protocol for battery limited wireless sensor networks
Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
International Journal of Communication Networks and Distributed Systems, 11, 2, 139-159, 2013, Peer-reviwed
Scientific journal, English - Routing in VANETs: A Fuzzy Constraint Q-Learning Approach
Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
Proceedings of IEEE Global Communications Conference (GLOBECOM), xx, xx, 213-218, Dec. 2012, Peer-reviwed
International conference proceedings, English - VANET Broadcast Protocol Based on Fuzzy Logic and Lightweight Retransmission Mechanism
Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
IEICE TRANSACTIONS ON COMMUNICATIONS, E95B, 2, 415-425, Feb. 2012, Peer-reviwed
Scientific journal, English - An adaptive redundancy-based mechanism for fast and reliable data collection in WSNs
Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
2012 IEEE 8TH INTERNATIONAL CONFERENCE ON DISTRIBUTED COMPUTING IN SENSOR SYSTEMS (DCOSS), xx, xx, 347-352, 2012, Peer-reviwed
International conference proceedings, English - How to Broadcast Efficiently in Vehicular Ad Hoc Networks Without GPS
Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
2012 IEEE VEHICULAR NETWORKING CONFERENCE (VNC), xx, xx, 258-264, 2012, Peer-reviwed
International conference proceedings, English - A Broadcast Path Diversity Mechanism for Delay Sensitive VANET Safety Applications
Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
Proceedings of IEEE Vehicular Networking Conference, xx, xx, 292-297, Nov. 2011, Peer-reviwed
International conference proceedings, English - A Dynamic Route Change Mechanism for Mobile Ad Hoc Networks
Celimuge Wu; Kazuya Kumekawa; Toshihiko Kato
International Journal of Communication Networks and Distributed Systems, 7, 1/2, 4-17, Jul. 2011, Peer-reviwed
Scientific journal, English - Fuzzy One-phase Pull Diffusion for WSNs in Fading Channel
Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
Proceedings of IEEE International Conference on Distributed Computing in Sensor Systems Workshops, xx, xx, 1-6, Jun. 2011, Peer-reviwed
International conference proceedings, English - Learning route from beaconing and interest dissemination in vehicular sensor networks
Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
Proceedings of 2011 6th International Conference on Telecommunication Systems, Services, and Applications, TSSA 2011, xx, xx, 49-54, 2011, Peer-reviwed
International conference proceedings, English - OFA: Opportunistic forwarding and acknowledgement for vehicular ad hoc networks
Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
IB2COM 2011 - 6th International Conference on Broadband Communications and Biomedical Applications, Program, xx, xx, 213-218, 2011, Peer-reviwed
International conference proceedings, English - Distributed Reinforcement Learning Approach for Vehicular Ad Hoc Networks
Celimuge Wu; Kazuya Kumekawa; Toshihiko Kato
IEICE TRANSACTIONS ON COMMUNICATIONS, E93B, 6, 1431-1442, Jun. 2010, Peer-reviwed
Scientific journal, English - Fuzzy logic based multi-hop broadcast for high-density vehicular ad hoc networks
Celimuge Wu; Satoshi Ohzahata; Toshihiko Kato
2010 IEEE Vehicular Networking Conference, VNC 2010, xx, xx, 17-24, 2010, Peer-reviwed
International conference proceedings, English - Movement Aware Routing for VANETs
Celimuge Wu; Toshihiko Kato
Proceedings of the 21st IASTED International Conference on Parallel and Distributed Computing and Systems, xx, xx, 315-320, Oct. 2009, Peer-reviwed
International conference proceedings, English - Reliable and Efficient Data Dissemination in VANETs
Celimuge Wu; Toshihiko Kato
Proceedings of IASTED International Conference on Internet and Multimedia Systems and Applications, xx, xx, 109-114, Jul. 2009, Peer-reviwed
International conference proceedings, English - An Enhanced Reinforcement Routing Protocol for Inter-vehicular Unicast Application
Celimuge Wu; Toshihiko Kato
Proceedings of IASTED International Conference on Internet and Multimedia Systems and Applications, xx, xx, 170-175, Mar. 2008, Peer-reviwed
International conference proceedings, English - Performance Evaluation of TCP Communication over Multihop Wireless Network Using Multiple Channels
S. Yokohama; K. Kumekawa; T. Kato
Proceeding ofIASTED International Conference on Communication Systems and Networks (CSN 2007), xx, xx, xx, Sep. 2007, Peer-reviwed
International conference proceedings, English - A High-Performance BGP Database System for Diagnosing Inter-Domain Connectivity Problems
T. Ogishi; S. Ano; T. Hasegawa; T. Kato
Proceedings of IASTED International Conference on Communication Systems and Networks (CSN 2007), xx, xx, xx, Sep. 2007, Peer-reviwed
International conference proceedings, English - A Hierarchical Group Key Management Scheme for Secure Multicast Increasing Efficiency of Key Distribution in Leave Operation
A. Nemaney Pour; K. Kumekawa; T. Kato; S. Itoh
Elsevier, Computer Networks, 51, 17, 4727-4743, Aug. 2007, Peer-reviwed
Scientific journal, English - An Experimental Study on HDTV Video Transmission over Wireless LAN
M. Nomoto; T. Kato; S. Itoh
Proceedings of IADIS International Wireless Applications and Computing 2007, xx, xx, xx, Jul. 2007, Peer-reviwed
International conference proceedings, English - Proposal of Layer 2 Based Approach for Constructing Wireless Mesh Networks
Akira Yanagisawa; Toshihiko Kato; Shuichi Itoh
Proceedings of IASTED European Conference on Internet and Multimedia Systems and Applications (EuroIMSA 2007), 88-93, Mar. 2007, Peer-reviwed
International conference proceedings, English - Mobile IP ネットワークにおける移動端末のデータ受信を対象とする，ハンドオフと伝送誤りの双方を考慮したTCP高速化方式の提案と評価
海老原成; 加藤聰彦; 伊藤秀一
情報処理学会論文誌, Information Processing Society of Japan (IPSJ), 48, 2, 434-447, Feb. 2007, Peer-reviwed, Recently, the mobile communication environment is widely spread and we can receive various information through the Internet even when we move at high-speed. But, in such an environment, it is pointed that the packet losses caused by transmission errors in wireless links and handoff during terminal moving degrade the TCP communication throughput, because many unnecessary congestion controls cause. There are a lot of researches for this problem, but most of them focus on only either transmission errors in wireless links or handoff, and do not take account of the coordination with Mobile IP procedures which give IP level mobility support. In this paper, we propose a high speed TCP communication procedure over Mobile IP taking account of both handoff and transmission errors when mobile node receives data. And we also show the results of performance evaluation of our procedure examined by software simulator.
Scientific journal, Japanese - Performance Evaluation of Reliable Data Transfer over Wireless LAN Based Ad hoc Network Considering Physical, MAC and TCP Level Behaviours
Masamune Okino; Toshihiko Kato; Shuichi Itoh
Proceedings of IASTED International Conference on Communications, Internet, and Information Technology (CIIT 2006), 253-258, Nov. 2006, Peer-reviwed
International conference proceedings, English - Performance Evaluation of Shortest Path Tree Based Dense Mode Ad hoc Multicast Routing Protocol
Tsutomu Kozaka; Toshihiko Kato; Shuichi Itoh; Yoshiyori Urano
Proceedings of IASTED International Conference on Communication Systems and Networks (CSN 2006), 20-25, Aug. 2006, Peer-reviwed
International conference proceedings, English - A New Group Re-keying Protocol with Smaller Computational and Key Storage Overhead
Alireza Nemaney Pour; Kazuya Kumekawa; Toshihiko Kato; Shuichi Itoh
Proceedings of IASTED International Conference on Communication Systems and Networks (CSN 2006), 165-170, Aug. 2006, Peer-reviwed
International conference proceedings, English - Peer to Peer Communications over Hierarchical Mobile IP Networks with Private Addresses Using SIP Based Signaling
Akira Idoue; Toshihiko Kato; Shuichi Itoh
Proceedings of IASTED International Conference on Communication Systems and Networks (CSN 2006), 202-207, Aug. 2006, Peer-reviwed
International conference proceedings, English - A Proposal of Photonic Network Using Wavelength Routing with Wavelength Conversion and TDMA with Time Slot Assignment Taking Account of Link Transmission Delay
Kayo Kurosaki; Kazuya Kumekawa; Toshihiko Kato; Shuichi Itoh
Proceedings of IASTED International Conference on Communication Systems and Networks (CSN 2006), 272-277, Aug. 2006, Peer-reviwed
International conference proceedings, English - A Dense Mode Ad hoc Multicast Routing Protocol Constructing Shortest Path Trees with Low Control Overhead
Tsutomu Kozaka; Toshihiko Kato; Shuichi Itoh; Yoshiyori Urano
Proceedings of 2006 6th International Conference on ITS Telecommunications (ITST 2006), 790-793, Jun. 2006, Peer-reviwed
International conference proceedings, English - High Performance TCP Scheme over Wireless LAN with Handoff and Transmission Error
Joe Ebihara; Masaki Kobayashi; Toshihiko Kato; Shuichi Itoh
Proceedings of IASTED International Conference on Networks and Communication Systems (NCS 2006), 411-416, Mar. 2006, Peer-reviwed
International conference proceedings, English - Selection of Landmark Nodes for Message Relaying in High Density Sensor Network Environment
Junichi Ushijima; Toshihiko Kato; Masamune Okino; Shuichi Itoh
Proceedings of IASTED International Conference on Networks and Communication Systems (NCS 2005), 186-190, Apr. 2005, Peer-reviwed
International conference proceedings, English - Design of Global Roaming Procedure among Independently Operated Mobile IP Networks
Koichiro Tsujino; Toshihiko Kato; Shuichi Itoh; Hidetoshi Yokota; Akira Idoue
Proceedings of IASTED International Conference on Networks and Communication Systems (NCS 2005), 302-307, Apr. 2005, Peer-reviwed
International conference proceedings, English - Design of scalable QoS guaranteed mobile IPv6 communication scheme using MPLS
W Liu; T Kato; S Itoh
Proceedings of the Fourth IASTED International Conference on Communication Systems and Networks, 37-42, 2005, Peer-reviwed
International conference proceedings, English - Combining AODV Ad hoc routing and conventional IP routing over wireless and wired links
K Takanashi; T Kato; S Itoh; A Sugata; F Kojima; M Fujise
PROCEEDINGS OF THE FOURTH IASTED INTERNATIONAL CONFERENCE ON COMMUNICATION SYSTEMS AND NETWORKS, 179-184, 2005, Peer-reviwed
International conference proceedings, English - DVMRP multicast LAN accommodation into ISP based on IGMP
Y Gong; T Kato; S Itoh
Proceedings of the Fourth IASTED International Conference on Communication Systems and Networks, 207-212, 2005, Peer-reviwed
International conference proceedings, English - An efficient approach to group key management in secure multicast
AN Pour; K Kumekawa; T Kato; S Itoh
Proceedings of the Fourth IASTED International Conference on Communication Systems and Networks, 218-223, 2005, Peer-reviwed
International conference proceedings, English - 高密度アドホックネットワークのためのAODVルーチングプロトコルの提案
沖野正宗; 加藤聰彦; 牛島準一; 伊藤秀一; 飯作俊一
情報処理学会論文誌, 45, 12, 580-590, Dec. 2004, Peer-reviwed
Scientific journal, Japanese - MNからの発呼トラヒックに対するHA機能をFAにもたせるMobile IP通信方式
加藤聰彦; 原正寛; 伊藤秀一; 飯作俊一
電子情報通信学会 論文誌, The Institute of Electronics, Information and Communication Engineers, J87-D-I, 5, 516-525, May 2004, Peer-reviwed, 携帯電話などを用いた大規模なモバイルインターネットの基本プロトコルとして,Mobile IPプロトコルが採用されつつある.ここでは,無線リンクを介してMNを収容する機能はFAにより実現され,HAはモバイルインターネットバックボーンの中で,MNの移動管理のみを行う構成になっている.このため大規模なモバイルインターネットにおいては,MNへのトラヒックをFAあてにフォワーデイングするというHAでのフォワーデイング処理のオーバヘッドが大きな課題になると考えられる.本論文では,この問題を解決するために,MNが移動先で発呼する場合は,移動先のFAにIPアドレスの割当を要求し,更にアドレスを割り当てられている間はそのFAがホームエージェントの機能を果たすMobile IPプロトコルを提案する.更にそれによるHAのフォワーデイング負荷の軽減及び移動先で用意すべきIPアドレス数についての評価結果を示す.
Scientific journal, Japanese - PIM-SMの解析に基づきマルチキャストトラヒックの振舞いを分析するパフォーマンスアナライザ
植野誠史; 加藤聰彦; 伊藤秀一
電子情報通信学会 論文誌, J87-D-I, 5, 580-590, May 2004, Peer-reviwed
Scientific journal, Japanese - A Proposal of Scalable QoS Guaranteed Mobile IP Communication Using MPLS Path with Pre-Allocated Bandwidth
Wei Liu; Toshihiko Kato; Seiji Ueno; Shuichi Itoh
IEICE Trans. Commun., E87-B, 3, 537-597, Mar. 2004, Peer-reviwed
Scientific journal, English - Improving scalability in QoS guarantee MN to MN mobile communication using traffic engineered MPLS path
W Liu; T Kato; S Itoh
Proceedings of the IASTED International Conference on Parallel and Distributed Computing and Networks, 171-176, 2004, Peer-reviwed
International conference proceedings, English - High performance TCP communication over mobile IP handoff for mobile node receiving data segments
J Ebihara; T Kato; S Itoh
Proceedings of the IASTED International Conference Communication Systems and Networks, 35-40, 2004, Peer-reviwed
International conference proceedings, English - AODV routing protocol well suited to high density ad hoc network environment
N Okino; T Kato; J Ushijima; S Itoh
Proceedings of the IASTED International Conference Communication Systems and Networks, 47-52, 2004, Peer-reviwed
International conference proceedings, English - Design of OSPF protocol for wireless IP networks
T Kato; K Takanashi; S Itoh; A Sugata; F Kojima; M Fujise
Proceedings of the IASTED International Conference Communication Systems and Networks, 76-82, 2004, Peer-reviwed
International conference proceedings, English - Accommodation of PIM-SM based multicast capable LAN in ISP using IGMP
YP Gong; T Kato; S Itoh
Proceedings of the IASTED International Conference Communication Systems and Networks, 184-189, 2004, Peer-reviwed
International conference proceedings, English - A QoS Aware Multicast Routing Protocol with Scalability in Terms of Link State Advertisement
Toshihiko Kato; Seiji Ueno; Shigeki Mukaiyama
IEICE Trans. Inf. & Syst., E86-D, 11, 2352-2360, Nov. 2003, Peer-reviwed
Scientific journal, English - A QoS Guaranteed Mobile IP Communication Scheme with Scalability in Terms of Resource Management in Backbone Network
Toshihiko Kato; Wei Liu; Seiji Ueno; Shuichi Itoh
Proceedings of 2003 IEEE 18th Annual Workshop on Computer Communications (CCW 2003), pp.1-8, Oct. 2003
International conference proceedings, English - Implementation and evaluation of TCP protocol tester generating exceptional test sequences
T Ogishi; T Hasegawa; T Kato
IEICE TRANSACTIONS ON COMMUNICATIONS, E86B, 2, 604-613, Feb. 2003
Scientific journal, English - Fast handoff method for Mobile IP over wireless LAN networks
H Yokota; A Idoue; T Hasegawa; T Kato
IEICE TRANSACTIONS ON COMMUNICATIONS, E85B, 10, 2108-2116, Oct. 2002
Scientific journal, English - Link Layer Assisted Mobile IP Fast Handoff Method over Wireless LAN Network
Hidetoshi Yokota; Akira Idoue; Toru Hasegawa; Toshihiko Kato
Proceedings of Eighth Annual International Conference on Mobile Computing and Networking (MobiCom 2002), 131-139, Sep. 2002
International conference proceedings, English - 通信システムの内部動作を推定するインテリジェントTCPアナライザ
大岸智彦; 井戸上彰; 加藤聰彦
情報処理学会 論文誌, 43, 2, 418-426, Feb. 2002
Scientific journal, Japanese - DVMRPに基づくマルチキャスト・トラヒック用パフォーマンス・アナライザ
植野誠史; 加藤聰彦; 鈴木健二
情報処理学会 論文誌, 43, 2, 418-426, Feb. 2002
Scientific journal, Japanese - A New Round Robin Scheduling Algorithm for Multimedia Traffic and Differential Services Router Implementation
Hidetoshi Yokota; Toshihiko Kato; Hideyoshi Tominaga
情報処理学会 論文誌, 43, 2, 427-437, Feb. 2002
Scientific journal, English - TCPによるデータ転送速度を高速化する衛星インターネット用TCPゲートウェイの提案
三宅優; 長谷川輝之; 長谷川亨; 加藤聰彦
電子情報通信学会 論文誌, The Institute of Electronics, Information and Communication Engineers, J84-B, 12, 2330-2341, Dec. 2001, 高速な伝送路を提供可能な衛星インターネットは, 新しいインターネットアクセス方式として期待されている.しかし, 衛星通信区間で発生する伝送遅延の影響により, TCPを使用したデータ転送においてその伝送帯域を有効に利用できないという問題が生じている.そこで筆者らは, 衛星通信を使用したインターネットアクセスににおいて, 地球局側にのみゲートウェイ機器を設置することにより各加入者側の通信設備/通信パラメータをいっさい変更することなくTCPの通信速度を高速化する方式を提案し, 試作機による実験により提案方式の有効性を確認した.本論文では, 提案する衛星インターネット用TCPゲートウェイの動作原理と試作機による評価結果について述べる.
Scientific journal, Japanese - Proposal of hierarchical mobile IP supporting private addresses utilizing NAT function and its implementation on UNIX operating system
A Idoue; H Yokota; T Kato
IEICE TRANSACTIONS ON COMMUNICATIONS, E84B, 12, 3155-3165, Dec. 2001
Scientific journal, English - Design and implementation of Internet performance monitor with realtime TCP behavior analysis
T Ogishi; A Idoue; T Hasegawa; T Kato; K Suzuki
IEICE TRANSACTIONS ON COMMUNICATIONS, E84B, 8, 2124-2133, Aug. 2001, Peer-reviwed
Scientific journal, English - QoS Routing-Based Congestion Management over Active Internetworking System Using Stream Code
Shigehiro Ano; Toru Hasegawa; Koji Nakao; Toshihiko Kato; Takashi Egawa; Koji Hino; Yoshiaki Kiriha; Fumito Kubota
IEICE Transactions on Communications, E84-B, 8, 2124-2133, Aug. 2001, Peer-reviwed
Scientific journal, English - Fast Handoff Method in Mobile IP Based on Coordination with Layer 2 Procedure
Koichi Hirose; Hidetoshi Yokota; Akira Idoue; Toshihiko Kato
Proceedings of IASTED International Conference Advances in Communications (AIC2001), 184-189, Jul. 2001
International conference proceedings, English - Video Transfer Protocol over Internet with Congestion Control Based on Two Level Rate Control
Teruyuki Hasegawa; Toru Hasegawa; Toshihiko Kato
情報処理学会 論文誌, Information Processing Society of Japan (IPSJ), 42, 6, 1703-1714, Jun. 2001, Video data transfer is one of the major type of traffic over the Internet. However, it is impossible for the current Internet to guarantee the network Qos for video transfer, and an influx of a large amount of video data into the Internet may cause serious network congestion. To resolve these problems, we previously proposed a protocol using congestion control based on rate control of video coding level and data transfer level, and evaluated this protocol using software simulation. However, in order to apply this protocol to real video communication, our previous protocol had some problems mainly with regard to efficiency. In this paper, we present an improved specification of a video transfer protocol with two level rate control. This paper also describes the results of implementation and evaluation of an actual video transfer system using our improved protocol, and a commercial video tool with H.261 encoding. The results show our protocol can transfer video data effectively and fairly through a congested network.
Scientific journal, English - High Performance TCP Communication over Wireless Access Link Using SSCOP with Segmenting/Reassembling Functions
Toshihiko Kato; Akira Idoue; Ayumi Hara; Kenji Suzuki
Proceedings of ITC Specialists Seminar on Access Networks and Systems, 245-252, Apr. 2001, Peer-reviwed
International conference proceedings, English - Mobile IP network supporting private IP addresses utilizing regional registration and NAT function
A Idoue; H Yokota; T Kato
PROCEEDINGS OF THE EIGHTH INTERNATIONAL CONFERENCE ON PARALLEL AND DISTRIBUTED SYSTEMS, 141-146, 2001
International conference proceedings, English - Mobile IP using private IP addresses
T Kato; A Idoue; H Yokota
PROCEEDINGS OF THE SIXTH IEEE SYMPOSIUM ON COMPUTERS AND COMMUNICATIONS, 491-497, 2001, Peer-reviwed
International conference proceedings, English - Making QoS aware multicast scalable in terms of link state advertisement
T Kato; S Ueno; S Mukaiyama; K Suzuki
NETWORK PROTOCOLS, 91-99, 2001, Peer-reviwed
International conference proceedings, English - An experimental study on performance during congestion for TCP/IP traffic over wide area ATM network using VBR with selective cell discard
S Ano; T Hasegawa; T Kato
IEICE TRANSACTIONS ON COMMUNICATIONS, E83B, 2, 155-164, Feb. 2000
Scientific journal, English - Interoperability testing system of TCP/IP based communication systems in operational environment
T Kato; T Ogishi; H Shinbo; Y Miyake; A Idoue; K Suzuki
TESTING OF COMMUNICATING SYSTEMS, 48, 143-157, 2000, Peer-reviwed
International conference proceedings, English - Analysis of Internet multicast traffic performance considering multicast routing protocol
S Ueno; T Kato; K Suzuki
2000 INTERNATIONAL CONFERENCE ON NETWORK PROTOCOLS, PROCEEDINGS, 95-104, 2000, Peer-reviwed
International conference proceedings, English - A Protocol Analyzer for Operational Testing of TCP/IP based Communication Systems
Tomohiko Ogishi; Akira Idoue; Toshihiko Kato; Kenji Suzuki
Proceedings of International Conference on Computer Communication 1999 (ICCC '99), 1, 348-355, Sep. 1999, Peer-reviwed
International conference proceedings, English - Performance Monitor for TCP/IP Traffic Analyzing Application Level Performance
Toshihiko Kato; Tomohiko Ogishi; Akira Idoue; Kenji Suzuki
Proceedings of International Conference on Computer Communication 1999 (ICCC '99), 2, 114-121, Sep. 1999, Peer-reviwed
International conference proceedings, English - Design and Implementation of Virtual Subnetwork System Supporting IP Terminal Mobility
Teruyuki Hasegawa; Akira Idoue; Toshihiko Kato
IEICE Transactions on Communications, E82-B, 6, 897-905, Jun. 1999
Scientific journal, English - A continuous media transfer protocol with congestion control using two level rate control
T Kato; A Kimura; T Hasegawa; K Suzuki
IEICE TRANSACTIONS ON COMMUNICATIONS, E82B, 6, 827-833, Jun. 1999
Scientific journal, English - ROSE上で動作するOSI応用層プログラムの完全な自動生成方式の提案とその評価
長谷川亨; 井戸上彰; 加藤聰彦; 鈴木健二
電子情報通信学会 論文誌, J82-B, 5, 868-876, May 1999
Scientific journal, Japanese - A Study on Accommodation of TCP/IP Best Effort Traffic to Wide Area ATM Network with VBR Service Category Using Selective Cell Discard
Shigehiro Ano; Toru Hasegawa; Toshihiko Kato
Proceedings of IEEE ATM Workshop '99, 535-540, May 1999, Peer-reviwed
International conference proceedings, English - Implementation and evaluation of video transfer system over Internet with congestion control based on two level rate control
T. Hasegawa; T. Hasegawa; T. Kato
Proceedings - 6th International Conference on Real-Time Computing Systems and Applications, RTCSA 1999, Institute of Electrical and Electronics Engineers Inc., 141-148, 1999, Peer-reviwed
International conference proceedings, English - Performance evaluation of TCP/IP traffic using window scale option over wide area ATM network with VBR service category
S Ano; T Hasegawa; T Kato; K Narita; K Hokamura
IEICE TRANSACTIONS ON COMMUNICATIONS, E81B, 11, 2090-2099, Nov. 1998
Scientific journal, English - 高速・広域ネットワークにおける輻輳回避手順の改良によるTCPの高速化
三宅優; 神崎昭浩; 加藤聰彦; 鈴木健二
電子情報通信学会 論文誌, J81-B-I, 11, 741-752, Nov. 1998
Scientific journal, Japanese - Full-Automatic Implementation of Protocol Programs for OSI Application Protocols over ROSE
Toru Hasegawa; Akira Idoue; Toshihiko Kato; Kenji Suzuki
Proceedings of IFIP TC6 WG6.1 Joint International Conference on Formal Description Techniques for Distributed Systems and Communication Protocols (FORTE XI) and Protocol Specification, Testing and Verification (PSTV XVIII), 309-324, Nov. 1998, Peer-reviwed
International conference proceedings, English - Impacts of PCR Value on Accommodation of TCP/IP Traffic to VBR based Wide Area ATM Networks
Toshihiko Kato; Yoichi Nakahashi; Kenji Suzuki
Proceeding of 11th International Teletraffic Congress Specialist Seminar, 88-93, Oct. 1998, Peer-reviwed
International conference proceedings, English - 共有メモリ型マルチプロセッサを対象としたレイヤ単位の並列処理による通信プロトコルの実装方式
佐藤友実; 加藤聰彦; 鈴木健二
情報処理学会 論文誌, 39, 9, 2727-2740, Sep. 1998
Scientific journal, Japanese - High Speed TCP/IP Experiment over International ATM Test Bed
Toru Hasegawa; Mitsuru Yamada; Kanji Hokamura; Kohei Yoshiizumi; Teruyuki Hasegawa; Toshihiko Kato; Linda Galasso; Hiroyuki Fujii
Proceedings of IFIP TC6/WG6.2 Fourth International Conference on Broadband Communications (BC '98), 300-311, Mar. 1998, Peer-reviwed
International conference proceedings, English - Protocol architecture of high speed TCP/IP service over international ATM network
T Hasegawa; T Hasegawa; T Kato; K Yoshiizumi; T Miki; K Hokamura; K Sawada
1998 IEEE ATM WORKSHOP PROCEEDINGS, 159-168, 1998, Peer-reviwed
International conference proceedings, English - A study on accommodation of TCP/IP traffic using window scale option to international ATM network with VBR service category
S Ano; T Hasegawa; T Kato; K Narita; K Hokamura
ICAATM'98: 1998 1ST IEEE INTERNATIONAL CONFERENCE ON ATM, 484-491, 1998, Peer-reviwed
International conference proceedings, English - Intelligent protocol analyzer for WWW server accesses with exception handling function
T Ogishi; A Idoue; T Kato; K Suzuki
TESTING OF COMMUNICATING SYSTEMS, 49-64, 1998, Peer-reviwed
International conference proceedings, English - Design and implementation of reliable protocol for video data produced in real time manner
T Hasegawa; T Hasegawa; T Kato
FIFTH INTERNATIONAL CONFERENCE ON REAL-TIME COMPUTING SYSTEMS AND APPLICATIONS, PROCEEDINGS, 200-206, 1998, Peer-reviwed
International conference proceedings, English - Congestion control with two level rate control for continuous media traffic in network without QoS guarantee
T Kato; A Kimura; T Hasegawa; K Suzuki
FIFTH INTERNATIONAL CONFERENCE ON REAL-TIME COMPUTING SYSTEMS AND APPLICATIONS, PROCEEDINGS, 207-214, 1998, Peer-reviwed
International conference proceedings, English - Intelligent Protocol Analyzer with TCP Behavior Emulation for Interoperability Testing of TCP/IP Protocols
Toshihiko Kato; Tomohiko Ogishi; Akira Idoue; Kenji Suzuki
Proceedings of IFIP TC6 WG6.1 Joint International Conference on Formal Description Techniques for Distributed Systems and Communication Protocols (FORTE X) and Protocol Specification, Testing and Verification (PSTV XVII), 449-464, Nov. 1997, Peer-reviwed
International conference proceedings, English - Applying reliable data transfer protocol to real time video retrieval system
T Hasegawa; T Hasegawa; T Kato; K Suzuki
IEICE TRANSACTIONS ON COMMUNICATIONS, E80B, 10, 1482-1492, Oct. 1997
Scientific journal, English - TCP Gateway Improving Throughput of TCP/IP over Wide Area ATM Networks
Toshihiko Kato; Kanji Hokamura; Mitsuru Yamada; Toru Hasegawa; Teruyuki Hasegawa; Kazuyoshi Sawada
Proceedings of ISS’97: World Telecommunications Congress, 1, 35-42, Sep. 1997, Peer-reviwed
International conference proceedings, English - Implementation and performance evaluation of high performance CMIP software over ATM network
T Hasegawa; A Idoue; T Kato; K Suzuki
IEICE TRANSACTIONS ON COMMUNICATIONS, E80B, 6, 869-880, Jun. 1997
Scientific journal, English - VBRを用いた広域ATM網上のTCPトラヒックの性能評価
阿野茂浩; 長谷川亨; 加藤聰彦; 成田憲治; 外村幹治
電子情報通信学会 論文誌, J80-B-I, 6, 375-386, Jun. 1997
Scientific journal, Japanese - Performance evaluation of TCP traffic over VBR in wide area ATM network
S Ano; T Hasegawa; T Kato; K Narita; K Hokamura
IEEE ATM '97 WORKSHOP, PROCEEDINGS, 73-82, 1997, Peer-reviwed
International conference proceedings, English - Design of protocol monitor emulating behaviors of TCP/IP protocols
T Kato; T Ogishi; A Idoue; K Suzuki
TESTING OF COMMUNICATING SYSTEMS, VOL 10, 416-431, 1997, Peer-reviwed
International conference proceedings, English - 広域ATM網を介したLAN間接続のためのTCPゲートウェイの実装と性能評価
長谷川輝之; 長谷川亨; 加藤聰彦; 鈴木健二
電子情報通信学会 論文誌, J79-B-I, 5, 262-270, May 1996
Scientific journal, Japanese - A video retrieval protocol with video data prefetch and packet retransmission considering play-out dead line
T Hasegewa; T Hasegawa; T Kato; K Suzuki
1996 INTERNATIONAL CONFERENCE ON NETWORK PROTOCOLS, PROCEEDINGS, 32-39, 1996, Peer-reviwed
International conference proceedings, English - A High-Speed Remote Procedure Call Based on Adaptive Data Representation Conversion
Masahiko Fujinaga; Toshihiko Kato; Kenji Suzuki
情報処理学会 論文誌, Information Processing Society of Japan (IPSJ), 36, 11, 2711-2719, Nov. 1995, Remote procedure call (RPC) mechanism based on the client-server model is widely accepted as a basic technology for the development of distributed systems. The runtime structure of an RPC can be modeled by using a stub layer and a transport layer. The stub layer includes specialized communication routines called stubs, which pack and unpack arguments of RPCs into and from RPC messages, respectively. The transport layer provides the stub layer with network-transparent message transfer functions. In order to increase the performance of RPC, the cost of both the stub layer and the transport layer should be reduced. This paper proposes "adaptive data representation conversion," which completely eliminates unnecessary data representation conversion in the stub layer, and describes the design and performance of a new high-speed RPC system called "KoKo" based on this technique. In KoKo, the data representation used in an RPC is negotiated prior to its execution. If no conversion is necessary, the arguments of the RPC are conveyed as they are, using the internal data representation regardless of their structure. The performance evaluation shows that KoKo outperforms other existing RPC systems.
Scientific journal, English - Implementation Method of High Speed Protocol as Transport Library
Yutaka Miyake; Toshihiko Kato; Kenji Suzuki
Proceedings of 1995 International Conference on Network Protocols (ICNP-95), 172-179, Nov. 1995, Peer-reviwed
International conference proceedings, English - Design of Intelligent OSI Protocol Monitor
Tomohiko Ogishi; Akira Idoue; Toshihiko Kato; Kenji Suzuki
Proceedings of the 8th IFIP WG6.1 International Workshop on Protocol Test Systems (IWPTS '95), 342-357, Sep. 1995, Peer-reviwed
International conference proceedings, English - Design of High Performance OSI Software over ATM Network
Toshihiko Kato; Toru Hasegawa; Akira Idoue; Kenji Suzuki; Yoshiyori Urano
Proceedings of the Twelfth International Conference on Computer Communication (ICCC '95), Aug. 1995, Peer-reviwed
International conference proceedings, English - パーソナルコンピュータおよびワークステーションのためのOSI 7層ボードの実装と評価
井戸上彰; 加藤聰彦; 鈴木健二
情報処理学会 論文誌, 36, 3, 763-774, Mar. 1995
Scientific journal, Japanese - A Design Method of Distributed Telecommunication System Based on the ODP Viewpoint Approach
Masahiko Fujinaga; Toshihiko Kato; Kenji Suzuki
IEICE Transactions on Communications, E77-B, 11, 1398-1406, Nov. 1994
Scientific journal, English - OSI Protocol Testing System based on User Friendly Test Scenario Specification Functions
Toshihiko Kato; Tomohiko Ogishi; Toru Hasegawa; Kenji Suzuki
Proceedings of the 7th IFIP WG6.1 International Workshop on Protocol Test Systems (IWPTS '94), 19-34, Nov. 1994, Peer-reviwed
International conference proceedings, English - A Study on Implementation of a Rate Control Mechanism for High Speed Networks
Yutaka Miyake; Masami Ishikura; Toshihiko Kato; Kenji Suzuki
Proceedings of the 6th European Research Consortium for Informatics and Mathematics (ERCIM) Workshop, 145-157, Jun. 1994, Peer-reviwed
International conference proceedings, English - OSI 7層ボードのためのオペレーティング・システム
井戸上彰; 加藤聰彦; 鈴木健二; 小野欽司
情報処理学会 論文誌, 35, 5, 865-874, May 1994
Scientific journal, Japanese - AN IMPLEMENTATION METHOD OF IN FUNCTIONAL ENTITIES ON TOP OF DISTRIBUTED OPERATING SYSTEM AND ITS PERFORMANCE EVALUATION USING EXPERIMENTAL SYSTEM
M FUJINAGA; T KATO; K SUZUKI
IEICE TRANSACTIONS ON COMMUNICATIONS, E75B, 10, 1043-1051, Oct. 1992
Scientific journal, English - Implementing IN Functional Entities on top of Distributed Operating System
Masahiko Fujinaga; Toshihiko Kato; Kenji Suzuki
Proceedings of the Fourteenth International Switching Symposium (ISS '92), 268-272, Oct. 1992, Peer-reviwed
International conference proceedings, English - Implementation and Evaluation of ASN.1 Compiler
Toru Hasegawa; Shingo Nomura; Toshihiko Kato
Journal of Information Processing, 15, 2, 157-167, Feb. 1992
Scientific journal, English - A Study on Implementation of Intelligent Network using RPC based Distributed Operating System
Toshihiko Kato; Masahiko Fujinaga; Kenji Suzuki
Proceedings of the Third Telecommunications Information Networking Architecture Workshop (TINA '92), 12-4-1 - 12-4-4, Jan. 1992, Peer-reviwed
International conference proceedings, English - ユニバーサルパーソナル通信(UPT)へのOSIディレクトリの適用と評価
小花貞夫; 堀内浩規; 加藤聰彦; 鈴木健二
電子情報通信学会 論文誌, J74-B-I, 11, 959-970, Nov. 1991
Scientific journal, Japanese - APPLYING DISTRIBUTED-PROCESSING TECHNOLOGIES TO INTELLIGENT NETWORK
T KATO; M FUJINAGA; S OBANA; K SUZUKI
IEICE TRANSACTIONS ON COMMUNICATIONS ELECTRONICS INFORMATION AND SYSTEMS, 74, 11, 3672-3682, Nov. 1991
Scientific journal, English - A Study on Applicability of Distributed Processing Technologies to Intelligent Network
Toshihiko Kato; Masahiko Fujinaga; Sadao Obana; Kenji Suzuki
Proceedings of the Second Telecommunications Information Networking Architecture Workshop (TINA '91), 95-108, Mar. 1991, Peer-reviwed
International conference proceedings, English - Design and Implementation of OSI Communication Board for Personal Computers and Workstations
Akira Idoue; Toshihiko Kato; Kenji Suzuki; Yoshiyori Urano
Proceedings of the Tenth International Conference on Computer Communication (ICCC '90), 585-592, Nov. 1990, Peer-reviwed
International conference proceedings, English - パケット通信プロトコルX.25とX.32のパーソナルコンピュータへの実装と評価
鈴木健二; 加藤聰彦; 小花貞夫
電子情報通信学会 論文誌, J73-B-I, 6, 579-587, Jun. 1990
Scientific journal, Japanese - EstelleおよびASN.1に基づくプロトコル仕様からAdaへのトランスレータの作成
長谷川亨; 堀内浩規; 加藤聰彦
電子情報通信学会 論文誌, 73-B-I, 4, 317-327, Apr. 1990
Scientific journal, Japanese - OSIプレゼンテーション、ACSE、FTAMプロトコルの実装と評価
小花貞夫; 加藤聰彦; 鈴木健二
情報処理学会 論文誌, 30, 7, 895-907, Jul. 1989
Scientific journal, Japanese - OSIトランスポートおよびセション・プロトコルの実装
鈴木健二; 加藤聰彦; 浦野義頼
情報処理学会 論文誌, 29, 12, 1180-1192, Dec. 1988
Scientific journal, Japanese - Automatic Ada Program Generation from Protocol Specifications based on Estelle and ASN.1
Toru Hasegawa; Hiroki Horiuchi; Toshihiko Kato; Kenji Suzuki; Yoshiyori Urano
Proceedings of the Ninth International Conference on Computer Communication (ICCC '88), 181-185, Nov. 1988, Peer-reviwed
International conference proceedings, English - Conformance Testing for OSI Protocols in the Multiple Layer Environment Based on Automaton Model
Toshihiko Kato; Kenji Suzuki; Yoshiyori Urano
Proceedings of the Eighth International Conference on Computer Communication (ICCC '86), 519-524, Sep. 1986, Peer-reviwed
International conference proceedings, English - Implementation and Testing of OSI Protocols
Kenji Suzuki; Toshihiko Kato; Yoshiyori Urano; Kinji Ono
Proceedings of the Third International Conference on Introduction of Open Systems Interconnection Standards, 453-461, Sep. 1985
International conference proceedings, English - Implementation and Testing of Transport Protocol
Kenji Suzuki; Toshihiko Kato; Kinji Ono
Proceedings of the Second International Conference on Introduction of Open Systems Interconnection Standards, 245-282, May 1984, Peer-reviwed
International conference proceedings, English - オートマトンモデルによるパケットレベルプロトコルの製品検証の一方式
斎藤忠夫; 加藤聰彦; 猪瀬博
電子通信学会 論文誌, J65-D, 12, 1499-1506, Dec. 1982
Scientific journal, Japanese - オートマトンモデルによるHDLCプロトコル製品検証方式の実験的考察
斎藤忠夫; 加藤聰彦; 榊修二; 猪瀬博
電子通信学会 論文誌, J65-D, 2, 155-162, Feb. 1982
Scientific journal, Japanese - オートマトンモデルによるHDLCプロトコル製品検証の一方式
斎藤忠夫; 加藤聰彦; 猪瀬博
電子通信学会 論文誌, J63-D, 8, 642-649, Aug. 1980
Scientific journal, Japanese
Books and other publications
Lectures, oral presentations, etc.
- 複数チャネルを用いたアドホックネットワークにおける最適チャネル割当て方法の提案
赤星雅也; 粂川一也; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会,第4回アドホックネットワーク・ワークショップ
Jun. 2006 - レイヤ2制御方式による無線メッシュネットワークの構築方法に関する検討
柳澤明; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会,第4回アドホックネットワーク・ワークショップ
Jun. 2006 - 無線ノードからの送信を対象とするTCP通信の高速化の一検討
武田宙; 海老原成; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会,2006年総合大会
Mar. 2006 - リンクの伝送遅延を考慮したタイムスロット割当てを行う波長変換フォトニックネットワークの一検討
黒崎佳代; 粂川一也; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会,2006年総合大会
Mar. 2006 - 複数チャネルを用いた無線アドホックネットワークの最適チャネル割当てに関する一考察
赤星雅也; 粂川一也; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会,2006年総合大会
Mar. 2006 - 多段無線マルチホップ通信におけるTCPの性能に関する一考察
小池昌弘; 粂川一也; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会,2006年総合大会
Mar. 2006 - レイヤ2制御方式を用いた無線メッシュネットワークの構築に関する一考察
柳澤明; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会,2006年総合大会
Mar. 2006 - バースト誤りと輻輳の双方を考慮したアドホックネットワークにおけるTCP通信高速化方式の検討
春原真人; 粂川一也; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 情報処理学会,モバイルコンピューティングとユビキタス通信研究会
Feb. 2006 - 端末の高速移動に対応するOLSRの機能拡張に関する検討
近藤毅; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 情報処理学会,モバイルコンピューティングとユビキタス通信研究会
Feb. 2006 - SIPとの協調により経路最適化ピアツーピア通信を実現するMobile IPv6通信方式の提案
村井信彰; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 情報処理学会,モバイルコンピューティングとユビキタス通信研究会
Feb. 2006 - 階層化Mobile IPv6とMPLSを用いたスケーラブルなモバイルQoS通信方式
Parvez Sarwer; Hossain, 劉偉; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 情報処理学会,モバイルコンピューティングとユビキタス通信研究会
Feb. 2006 - 最短木による多対多通信を実現するアドホックネットワーク用マルチキャストルーチングプロトコルに関する評価
小坂努; 加藤聰彦; 伊藤秀一; 浦野義頼
Oral presentation, Japanese, 情報処理学会,モバイルコンピューティングとユビキタス通信研究会
Feb. 2006 - ns-2の利用方法
加藤聰彦
Public symposium, Japanese, 第3回QoSワークショップ, 電子情報通信学会コミュニケーションクオリティ研究会, 東京
Nov. 2005 - セキュアマルチキャストにおける効率的な階層型グループ鍵管理プロトコル
Alireza Nemaney Pour; 粂川一也; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会,2005年ソサイエティ大会
Sep. 2005 - スプリアス再送時のTCPの振舞いに関する一検討
小池昌弘; 粂川一也; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会,2005年ソサイエティ大会
Sep. 2005 - 気付アドレスに対する可動性を提供するMobile IPv6通信方式におけるアクセスルータとモバイルノードの間の認証手順の設計
村井信彰; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会,2005年ソサイエティ大会
Sep. 2005 - 階層化Mobile IPv6とMPLSを用いたスケーラブルなモバイルQoS通信方式
パルヴェズサロワホセイン; 劉偉; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会,2005年ソサイエティ大会
Sep. 2005 - リンク層レベルの再送を考慮したモバイルIPネットワーク環境におけるハンドオフと伝送誤りに対応するTCP高速化方式の評価
海老原成; 粂川一也; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会,2005年ソサイエティ大会
Sep. 2005 - バースト誤りのある無線リンクを用いたアドホックネットワークにおけるTCP通信の性能に関する一検討
春原真人; 粂川一也; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会,2005年ソサイエティ大会
Sep. 2005 - 高密度アドホックネットワークに適したAODVプロトコルのノード移動における性能評価
沖野正宗; 牛島準一; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会,2005年ソサイエティ大会
Sep. 2005 - 階層的な高密度センサーネットワークのための中継用ランドマークの評価
牛島準一; 沖野正宗; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会,2005年ソサイエティ大会
Sep. 2005 - 最短木を用いたアドホックマルチキャストのための効率的なJOIN方式
小坂努; 加藤聰彦; 伊藤秀一; 浦野義頼
Oral presentation, Japanese, 電子情報通信学会,2005ソサイエティ大会
Sep. 2005 - 最短木を用いるアドホックネットワーク用マルチキャストルーチングプロトコルの設計
小坂努; 加藤聰彦; 伊藤秀一; 浦野義頼
Oral presentation, Japanese, 電子情報通信学会,ネットワークシステム研究会
Jul. 2005 - 気付アドレスに対する可動性を提供するMobile IPv6方式の設計
村井信彰; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会,ネットワークシステム研究会
Jul. 2005 - アドホックネットワークにおけるTCP通信の性能に関する一考察
春原真人; 粂川一也; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 第2回アドホックネットワーク・ワークショップ
May 2005 - 端末の高速移動に対応するOLSRの機能拡張に関する検討
近藤毅; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 第2回アドホックネットワーク・ワークショップ
May 2005 - 高密度なアドホックネットワークに対応するAODVプロトコルの性能評価
沖野正宗; 牛島準一; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会,コミュニケーションクオリティ研究会
Apr. 2005 - IGMPを用いたDVMRPベースマルチキャストLANのISPへの収容
ゴンヤピン; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会技術研究報告
Mar. 2005 - AODVとMobile IPを組み合わせたアドホックネットワークとインターネットの相互接続方法の性能評価
有本俊礼; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会技術研究報告
Mar. 2005 - 複数レイヤのモニタリングによる無線LAN通信の多重アクセス動作の解析
姫野正人; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会技術研究報告
Mar. 2005 - ハンドオフと伝送誤りを伴う無線LANネットワークにおけるTCP通信高速化方式の性能評価
小林正樹; 海老原成; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会技術研究報告
Mar. 2005 - 高密度アドホックネットワークを指向したAODVルーチングプロトコルの評価
沖野正宗; 牛島準一; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 情報処理学会第67回全国大会
Mar. 2005 - 高密度センサーネットワークの階層化のための中継用ランドマークの選出方法
牛島準一; 沖野正宗; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 情報処理学会第67回全国大会
Mar. 2005 - QoSを保証するスケーラブルなMobile IPv6通信方式の設計
劉偉; 加藤聰彦; 伊藤秀一
Oral presentation, 情報処理学会第67回全国大会
Mar. 2005 - モバイルIPネットワークにおけるハンドオフと伝送誤りの双方を考慮したTCP高速化方式の評価
海老原成; 粂川一也; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 情報処理学会第67回全国大会
Mar. 2005 - 有線リンクと無線リンクの混在するネットワークにおけるAODVルーチング方式に関する実験的検討
高梨健一; 加藤聰彦; 伊藤秀一; 菅田明則; 児島史秀; 藤瀬雅行
Oral presentation, Japanese, 情報処理学会第67回全国大会
Mar. 2005 - セキュアマルチキャストにおける効率的なグループ鍵管理に関する一考察
Alireza Nemaney Pour; 加藤聰彦; 粂川一也; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会2005総合大会
Mar. 2005 - リージョナル気付アドレスに対する可動性を提供するHMIPv6方式
加藤聰彦; パルヴェズサロワホセイン; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会2005総合大会
Mar. 2005 - 気付アドレスに対する可動性を提供するMobile IPv6通信方式の提案
加藤聰彦; 村井信彰; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会2005総合大会
Mar. 2005 - アドホックネットワークにおいて多対多通信を実現する最短木の構築方式
小坂努; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会2005総合大会
Mar. 2005 - OLSRにおけるノード移動時の通信開始遅延の低減手法の提案
近藤毅; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会2005総合大会
Mar. 2005 - アドホックネットワークにおけるTCP通信の振舞いに関する一検討
春原真人; 加藤聰彦; 粂川一也; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会2005総合大会
Mar. 2005 - MPLSを用いたスケーラブルなQoS保証Mobile IPv6通信方式
劉偉; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会技術研究報告
Nov. 2004 - 無線LAN通信の解析を補助するモニタリングシステムの設計
姫野正人; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会技術研究報告
Nov. 2004 - 有線リンクと無線リンクの混在するネットワークにおけるAODVルーチング方式に関する検討
高梨健一; 加藤聰彦; 伊藤秀一; 菅田明則; 児島史秀; 藤瀬雅行
Oral presentation, Japanese, 情報処理学会研究報告
Sep. 2004 - プライベートIPアドレスにより独立に管理されたMobile IPネットワーク間のグローバルローミング方式
辻野康一郎; 加藤聰彦; 伊藤秀一; 横田英俊; 井戸上彰
Oral presentation, Japanese, FIT2004
Sep. 2004 - ハンドオフ／伝送誤り／バックボーンの輻輳を考慮したモバイルIPのためのTCP通信高速化手法
海老原成; 粂川一也; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, FIT2004
Sep. 2004 - 端末の移動を考慮したOLSRの性能評価
近藤毅; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, FIT2004
Sep. 2004 - モバイルIPによるAODVアドホックネットワークとインターネットの相互接続方式に対する制御オーバヘッドの評価
有本俊礼; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, FIT2004
Sep. 2004 - 消防活動のためのアドホックネットワークを指向したマルチキャストルーチングプロトコルに関する一検討
加藤聰彦; 高梨健一; 伊藤秀一; 浦野義頼
Oral presentation, Japanese, FIT2004
Sep. 2004 - 無線IPネットワーク用OSPFデーモンの実装と動作検証
高梨健一; 加藤聰彦; 伊藤秀一; 菅田明則; 児島史秀; 藤瀬雅行
Oral presentation, Japanese, 電子情報通信学会2004年ソサイエティ大会
Sep. 2004 - 無線ネットワークにおけるハンドオフ後にウィンドウサイズが変化する場合のTCP性能評価に関する検討
粂川一也; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会2004年ソサイエティ大会
Sep. 2004 - レイヤ2手順による無線LANにおける高速TCPハンドオフ手法の検討
小林正樹; 海老原成; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会2004年ソサイエティ大会
Sep. 2004 - 無線LAN通信の性能評価のためのモニタリングシステムに関する検討
姫野正人; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会2004年ソサイエティ大会
Sep. 2004 - 無線LAN通信の解析のためのモニタリングシステムに関する検討
姫野正人; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会技術研究報告
Jul. 2004 - ハンドオフと伝送誤りの双方を考慮したモバイルIPのためのTCP高速化方式の提案
海老原成; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会技術研究報告
Jul. 2004 - 無線LANネットワークにおけるハンドオフに対するTCP通信高速化手法
小林正樹; 海老原成; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会技術研究報告
Jul. 2004 - PIM-SMを用いたマルチキャスト対応LANのIGMPを用いた収容方法
ゴンヤピン; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会技術研究報告
Jun. 2004 - 高密度アドホックネットワークに適したAODV経路選択方式の提案と評価
沖野正宗; 牛島準一; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 情報処理学会研究報告
May 2004 - 独立なMobile IPネットワーク間のグローバルローミング方式
辻野康一郎; 加藤聰彦; 伊藤秀一; 横田英俊; 井戸上彰
Oral presentation, Japanese, 情報処理学会研究報告
May 2004 - AODVの機能を活用したアドホックネットワーク上でのMobile IP通信方式の検討
有本俊礼; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 情報処理学会研究報告
May 2004 - プライベートIPアドレスによるモバイルIPネットワークにおける経路最適化ピアツーピア通信の実現
加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 情報処理学会研究報告
Mar. 2004 - MPLSパスを用いたスケーラブルなQoS保証ピアツーピアモバイルIP通信方式
劉偉; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会技術研究報告
Mar. 2004 - 発呼トラヒックのためのHA機能をFAに持たせるモバイルIPプロトコルの実装
原正寛; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会技術研究報告
Mar. 2004 - モバイルIPのハンドオフ時におけるTCP通信高速化手法の評価
海老原成; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会技術研究報告
Mar. 2004 - MPLSを用いたスケーラブルなピアツーピアモバイルQoS通信
劉偉; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 情報処理学会第66回全国大会
Mar. 2004 - HA機能を有するFAを用いたモバイルIPソフトウェアの設計
原正寛; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 情報処理学会第66回全国大会
Mar. 2004 - モバイルIPとAODVを組み合わせたアドホックネットワークとインターネットの相互接続方式に関する一考察
有本俊礼; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 情報処理学会第66回全国大会
Mar. 2004 - モバイルIPネットワーク間のグローバルローミング方式に関する一考察
加藤聰彦; 辻野康一郎; 伊藤秀一; 横田英俊; 井戸上彰
Oral presentation, Japanese, 情報処理学会第66回全国大会
Mar. 2004 - プライベートIPアドレスによるモバイルIPとSIPを用いたピアツーピア通信手法
加藤聰彦; 伊藤秀一; 横田英俊; 井戸上彰
Oral presentation, Japanese, 情報処理学会第66回全国大会
Mar. 2004 - 動的に確立するサブコネクションを用いた超高速TCP通信のための輻輳制御方式
堀内律之; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 情報処理学会第66回全国大会
Mar. 2004 - 散在する無線LANネットワークの間の高速TCPハンドオフに関する検討
小林正樹; 海老原成; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会2004総合大会
Mar. 2004 - 無線IPネットワーク構築のためのOSPFのデータベース同期手続きに関する一検討
高梨健一; 加藤聰彦; 伊藤秀一; 菅田明則; 児島史秀; 藤瀬雅行
Oral presentation, Japanese, 電子情報通信学会2004総合大会
Mar. 2004 - 有線リンクと無線リンクの双方を用いるAODVネットワークの構築に関する検討
加藤聰彦; 高梨健一; 伊藤秀一; 菅田明則; 児島史秀; 藤瀬雅行
Oral presentation, Japanese, 電子情報通信学会2004総合大会
Mar. 2004 - モニタリングによる無線LAN上のTCP通信の解析実験
姫野正人; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会2004総合大会
Mar. 2004 - A Study on IGMP Based Internet Accommodation of Multicast-capable LANs with PIM-SM
Gong Yaping; Toshihiko Kato; Shuichi Itoh
Oral presentation, English, 電子情報通信学会2004総合大会
Mar. 2004 - 中継用ランドマークノードを有する高密度広域アドホックネットワークにおける階層化ルーチングに関する検討
牛島準一; 沖野正宗; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会技術研究報告
Dec. 2003 - AODVを高密度なアドホックネットワークに適用したオンデマンド型アドホックルーチングプロトコルの検討
沖野正宗; 牛島準一; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会技術研究報告
Dec. 2003 - ブロードキャスト型無線IPネットワークを指向したOSPFの拡張に関する検討
高梨健一; 加藤聰彦; 伊藤秀一; 菅田明則; 児島史秀; 藤瀬雅行
Oral presentation, Japanese, 電子情報通信学会技術研究報告
Nov. 2003 - MPLSを用いたスケーラブルなQoS保証モバイルIP通信方式の評価
劉偉; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, FIT2003
Sep. 2003 - ハンドオフと伝送誤りの双方を考慮したモバイルIPのためのTCP通信高速化手法の検討
海老原成; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, FIT2003
Sep. 2003 - モバイルIPを用いたアドホックネットワークとインターネットの相互接続方式
加藤聰彦; 伊藤秀一
Oral presentation, Japanese, FIT2003
Sep. 2003 - HA機能を有するFAを用いたモバイルIPプロトコルの実装に関する検討
原正寛; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, FIT2003
Sep. 2003 - 中継用ランドマークノードを有する高密度アドホック網を用いた広域ネットワークに関する一考察
牛島準一; 沖野正宗; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, FIT2003
Sep. 2003 - 無線到達範囲のバウンダリノードを用いるオンデマンド型アドホックルーチングプロトコルの検討
沖野正宗; 牛島準一; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, FIT2003
Sep. 2003 - A New One-Pass Diffie-Hellman Protocol
Alireza Nemaney Pour; Toshihiko Kato; Shuichi Itoh
Oral presentation, English, 電子情報通信学会2003年ソサイエティ大会
Sep. 2003 - OSPFを用いた無線IPネットワークの構築に関する検討
加藤聰彦; 高梨健一; 伊藤秀一; 菅田明則; 児島史秀; 藤瀬雅行
Oral presentation, Japanese, 電子情報通信学会2003年ソサイエティ大会
Sep. 2003 - 無線IPネットワークに適したOSPF機能に関する検討
高梨健一; 加藤聰彦; 伊藤秀一; 菅田明則; 児島史秀; 藤瀬雅行
Oral presentation, Japanese, 電子情報通信学会2003年ソサイエティ大会
Sep. 2003 - モバイルIPハンドオフにおけるTCP通信の高速化手法に関する検討
海老原成; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 情報処理学会研究報告
Jul. 2003 - 発呼トラヒックに対するHA機能をFAに持たせるモバイルIPプロトコル
原正寛; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 情報処理学会研究報告
Jul. 2003 - A New Two Pass Diffie-Hellman Protocol with Key Confirmation
Alireza Nemaney Pour; Hajime Ishihara; Toshihiko Kato; Shuichi Itoh
Oral presentation, English, 電子情報通信学会技術研究報告
Jul. 2003 - 隣接ノード情報の交換を用いた無線フラッディングのための中継ノードの選択方法の提案と評価
沖野正宗; 牛島準一; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会技術研究報告
Jul. 2003 - 高密度アドホックネットワークにおける中継用ランドマークノードの選出方法の提案と評価
牛島準一; 沖野正宗; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会技術研究報告
Jul. 2003 - MPLSを用いたスケーラブルなQoS保証モバイルIP通信方式の検討
劉偉; 植野誠史; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会 技術研究報告
Apr. 2003 - 2レベルのレート制御を用いたマルチキャストトラヒックのための輻輳制御の検討
加藤聰彦; 植野誠史; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会 2003年総合大会
Mar. 2003 - 隣接ノード情報の交換に基づく無線フラッディングのための中継ノードの選択方法
沖野正宗; 牛島準一; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会 2003年総合大会
Mar. 2003 - 高密度アドホックネットワークにおける中継用ランドマークノードの選出方式
牛島準一; 沖野正宗; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 電子情報通信学会 2003年総合大会
Mar. 2003 - MPLSを用いたスケーラブルなQoSモバイル通信方式の設計
劉偉; 植野誠史; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 情報処理学会第65回全国大会
Mar. 2003 - モバイルIPにおけるハンドオフ時のTCP通信高速化に関する検討
海老原成; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 情報処理学会第65回全国大会
Mar. 2003 - 発呼トラヒックのためのHA機能をFAに持たせるモバイルIPプロトコルの設計
原正寛; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 情報処理学会第65回全国大会
Mar. 2003 - PIM-SMによるマルチキャスト・トラヒックのための分散型モニタリング・システムの設計
植野誠史; 加藤聰彦; 伊藤秀一
Oral presentation, Japanese, 情報処理学会第65回全国大会
Mar. 2003 - 並列に動作するサブコネクションを用いた超高速アプリケーション向けTCP輻輳制御方式の提案
加藤聰彦; 井上広喜; 伊藤秀一
Oral presentation, Japanese, 情報処理学会第65回全国大会
Mar. 2003 - 発着呼の区別により動的にHAを選択するMobile IP手順に関する検討
加藤聰彦; 伊藤秀一
Oral presentation, Japanese, FIT (情報科学技術フォーラム) 2002
Sep. 2002 - MPLSによる帯域保証パスを用いたQoSモバイル通信方式の提案
劉偉; 植野誠史; 加藤聰彦
Oral presentation, Japanese, FIT (情報科学技術フォーラム) 2002
Sep. 2002
Courses
- ユビキタスネットワーク
The University of Electro-Communications - ネットワークアーキテクチャ論
The University of Electro-Communications - ウェブデザインプログラム ネットワーク基礎
The University of Electro-Communications - セキュリティ情報学実験
The University of Electro-Communications - セキュリティ情報学実験
電気通信大学 - ウェブデザインプログラム ネットワーク基礎
The University of Electro-Communications - ウェブデザインプログラム ネットワーク基礎
電気通信大学 - Ubiquitious Networks
The University of Electro-Communications - ユビキタスネットワーク
電気通信大学 - Network Architecture
The University of Electro-Communications - ネットワークアーキテクチャ論
電気通信大学 - Network Architecture 1
The University of Electro-Communications - ネットワークアーキテクチャ論１
電気通信大学
