IEICE Trans

Ryoichi KAWAHARA

Network Tomography Using Routing Probability for Undeterministic Routing Rie TAGYO Daisuke IKEGAMI Ryoichi KAWAHARA
Publication: Publication Date: 2021/07/01 Vol. E104-B No. 7 pp. 837-848 Type of Manuscript: PAPER Category: Network Keyword: network tomography, routing probability, mobile crowd sensing (MCS),
	Summary \| Full Text:PDF

Extendable NFV-Integrated Control Method Using Reinforcement Learning Akito SUZUKI Ryoichi KAWAHARA Masahiro KOBAYASHI Shigeaki HARADA Yousuke TAKAHASHI Keisuke ISHIBASHI
Publication: Publication Date: 2020/08/01 Vol. E103-B No. 8 pp. 826-841 Type of Manuscript: PAPER Category: Network Keyword: NFV, network control, reinforcement learning,
	Summary \| Full Text:PDF

Modeling Upper Layer Reaction to QoS Degradation as a Congestion Avoidance Mechanism Shigeaki HARADA Keisuke ISHIBASHI Ryoichi KAWAHARA
Publication: Publication Date: 2020/04/01 Vol. E103-B No. 4 pp. 302-311 Type of Manuscript: INVITED PAPER (Special Section on Network Resource Control and Management Technologies for Sustainable Social Information Infrastructure) Category: Keyword: closed loop, congestion avoidance, latent traffic demand,
	Summary \| Full Text:PDF

Inferring Latent Traffic Demand Offered to an Overloaded Link with Modeling QoS-Degradation Effect Keisuke ISHIBASHI Shigeaki HARADA Ryoichi KAWAHARA
Publication: Publication Date: 2019/04/01 Vol. E102-B No. 4 pp. 790-798 Type of Manuscript: PAPER Category: Fundamental Theories for Communications Keyword: latent traffic demand, engagement, state space model,
	Summary \| Full Text:PDF

Workflow Extraction for Service Operation Using Multiple Unstructured Trouble Tickets Akio WATANABE Keisuke ISHIBASHI Tsuyoshi TOYONO Keishiro WATANABE Tatsuaki KIMURA Yoichi MATSUO Kohei SHIOMOTO Ryoichi KAWAHARA
Publication: Publication Date: 2018/04/01 Vol. E101-D No. 4 pp. 1030-1041 Type of Manuscript: Special Section PAPER (Special Section on Data Engineering and Information Management) Category: Keyword: system management, operation, trouble ticket, workflow, multiple sequence alignment, hidden markov model,
	Summary \| Full Text:PDF

Name Resolution Based on Set of Attribute-Value Pairs of Real-World Information Ryoichi KAWAHARA Hiroshi SAITO
Publication: Publication Date: 2017/01/01 Vol. E100-B No. 1 pp. 110-121 Type of Manuscript: PAPER Category: Network Keyword: real world information, name resolution, curse of dimensionality, searching algorithm,
	Summary \| Full Text:PDF

An Online Framework for Flow Round Trip Time Measurement Xinjie GUAN Xili WAN Ryoichi KAWAHARA Hiroshi SAITO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2014/10/01 Vol. E97-B No. 10 pp. 2145-2156 Type of Manuscript: PAPER Category: Network Keyword: flow measurement, round trip time, bloom filter, data stream computation,
	Summary \| Full Text:PDF

Optimally Identifying Worm-Infected Hosts Noriaki KAMIYAMA Tatsuya MORI Ryoichi KAWAHARA Shigeaki HARADA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2013/08/01 Vol. E96-B No. 8 pp. 2084-2094 Type of Manuscript: PAPER Category: Network Management/Operation Keyword: worm, detection, sampling, optimum design,
	Summary \| Full Text:PDF

Multicast Pre-Distribution VoD System Noriaki KAMIYAMA Ryoichi KAWAHARA Tatsuya MORI Haruhisa HASEGAWA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2013/06/01 Vol. E96-B No. 6 pp. 1459-1471 Type of Manuscript: PAPER Category: Network Keyword: rich content, CDN, ISP,
	Summary \| Full Text:PDF

Optimally Designing ISP-Operated CDN Noriaki KAMIYAMA Tatsuya MORI Ryoichi KAWAHARA Haruhisa HASEGAWA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2013/03/01 Vol. E96-B No. 3 pp. 790-801 Type of Manuscript: PAPER Category: Network Keyword: content delivery, CDN, ISP,
	Summary \| Full Text:PDF

Analyzing Characteristics of TCP Quality Metrics with Respect to Type of Connection through Measured Traffic Data Yasuhiro IKEDA Ryoichi KAWAHARA Noriaki KAMIYAMA Tatsuaki KIMURA Tatsuya MORI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2013/02/01 Vol. E96-B No. 2 pp. 533-542 Type of Manuscript: PAPER Category: Internet Keyword: QoS, traffic measurement, TCP,
	Summary \| Full Text:PDF

Effect of Limiting Pre-Distribution and Clustering Users on Multicast Pre-Distribution VoD Noriaki KAMIYAMA Ryoichi KAWAHARA Tatsuya MORI Haruhisa HASEGAWA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2013/01/01 Vol. E96-B No. 1 pp. 143-154 Type of Manuscript: PAPER Category: Network Keyword: VoD, content distribution, multicast,
	Summary \| Full Text:PDF

Traffic Engineering of Peer-Assisted Content Delivery Network with Content-Oriented Incentive Mechanism Naoya MAKI Takayuki NISHIO Ryoichi SHINKUMA Tatsuya MORI Noriaki KAMIYAMA Ryoichi KAWAHARA Tatsuro TAKAHASHI
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2012/12/01 Vol. E95-D No. 12 pp. 2860-2869 Type of Manuscript: Special Section PAPER (Special Section on Parallel and Distributed Computing and Networking) Category: Network and Communication Keyword: content delivery network, peer-assisted network, contents combinations, combining contents, traffic localization,
	Summary \| Full Text:PDF

Analyzing and Reducing the Impact of Traffic on Large-Scale NAT Ryoichi KAWAHARA Tatsuya MORI Takeshi YADA Noriaki KAMIYAMA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2012/09/01 Vol. E95-B No. 9 pp. 2815-2827 Type of Manuscript: PAPER Category: Network Keyword: large scale NAT, number of active flows, traffic measurement,
	Summary \| Full Text:PDF

Effects of Sampling and Spatio/Temporal Granularity in Traffic Monitoring on Anomaly Detectability Keisuke ISHIBASHI Ryoichi KAWAHARA Tatsuya MORI Tsuyoshi KONDOH Shoichiro ASANO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2012/02/01 Vol. E95-B No. 2 pp. 466-476 Type of Manuscript: PAPER Category: Internet Keyword: anomaly detection, sampling, spatio/temporal granularity, hurst parameter,
	Summary \| Full Text:PDF

Packet Sampling TCP Flow Rate Estimation and Performance Degradation Detection Method Ryoichi KAWAHARA Tatsuya MORI Keisuke ISHIBASHI Noriaki KAMIYAMA Hideaki YOSHINO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2008/05/01 Vol. E91-B No. 5 pp. 1309-1319 Type of Manuscript: Special Section PAPER (Special Section on Communication Quality) Category: Measurement Methodology for Network Quality Such as IP, TCP and Routing Keyword: packet sampling, TCP performance, flow measurement,
	Summary \| Full Text:PDF

Finding Cardinality Heavy-Hitters in Massive Traffic Data and Its Application to Anomaly Detection Keisuke ISHIBASHI Tatsuya MORI Ryoichi KAWAHARA Yutaka HIROKAWA Atsushi KOBAYASHI Kimihiro YAMAMOTO Hitoaki SAKAMOTO Shoichiro ASANO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2008/05/01 Vol. E91-B No. 5 pp. 1331-1339 Type of Manuscript: Special Section PAPER (Special Section on Communication Quality) Category: Measurement Methodology for Network Quality Such as IP, TCP and Routing Keyword: cardinality, anomaly detection, data stream,
	Summary \| Full Text:PDF

Identifying Heavy-Hitter Flows from Sampled Flow Statistics Tatsuya MORI Tetsuya TAKINE Jianping PAN Ryoichi KAWAHARA Masato UCHIDA Shigeki GOTO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2007/11/01 Vol. E90-B No. 11 pp. 3061-3072 Type of Manuscript: Special Section PAPER (Special Section on Next Generation Network Management) Category: Keyword: network measurement, packet sampling, flow statistics, a priori distribution, Bayes' theorem,
	Summary \| Full Text:PDF

QoS-Aware Overlay Routing with Limited Number of Alternative Route Candidates and Its Evaluation Masato UCHIDA Satoshi KAMEI Ryoichi KAWAHARA Takeo ABE
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2006/09/01 Vol. E89-B No. 9 pp. 2361-2374 Type of Manuscript: Special Section PAPER (Special Section on Networking Technologies for Overlay Networks) Category: Keyword: overlay routing, QoS, overlay network,
	Summary \| Full Text:PDF

Detection of TCP Performance Degradation Using Link Utilization Statistics Keisuke ISHIBASHI Ryoichi KAWAHARA Takuya ASAKA Masaki AIDA Satoshi ONO Shoichiro ASANO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2006/01/01 Vol. E89-B No. 1 pp. 47-56 Type of Manuscript: PAPER Category: Network Keyword: TCP, performance, link utilization, measurement,
	Summary \| Full Text:PDF

Method of Bandwidth Dimensioning and Management for Aggregated TCP Flows with Heterogeneous Access Links Ryoichi KAWAHARA Keisuke ISHIBASHI Tatsuya MORI Toshihisa OZAWA Takeo ABE
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2005/12/01 Vol. E88-B No. 12 pp. 4605-4615 Type of Manuscript: PAPER Category: Internet Keyword: TCP performance, processor-sharing model, heterogeneous access links, bandwidth dimensioning and management,
	Summary \| Full Text:PDF

A Method of Bandwidth Dimensioning and Management Using Flow Statistics Ryoichi KAWAHARA Keisuke ISHIBASHI Takuya ASAKA Shuichi SUMITA Takeo ABE
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2005/02/01 Vol. E88-B No. 2 pp. 643-653 Type of Manuscript: PAPER Category: Network Management/Operation Keyword: TCP performance, bandwidth dimensioning and management, number of active flows,
	Summary \| Full Text:PDF

On the Characteristics of Internet Traffic Variability: Spikes and Elephants Tatsuya MORI Ryoichi KAWAHARA Shozo NAITO Shigeki GOTO
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2004/12/01 Vol. E87-D No. 12 pp. 2644-2653 Type of Manuscript: Special Section PAPER (Special Section on New Technologies and their Applications of the Internet) Category: Traffic Measurement and Analysis Keyword: measurement, analysis, traffic, spikes, elephant flow,
	Summary \| Full Text:PDF

An Adaptive Load Balancing Method for Multiple Paths Using Flow Statistics and Its Performance Analysis Ryoichi KAWAHARA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2004/07/01 Vol. E87-B No. 7 pp. 1993-2003 Type of Manuscript: PAPER Category: Network Keyword: load balancing, TCP, MPLS,
	Summary \| Full Text:PDF

A Method of IP Traffic Management Using the Relationship between TCP Flow Behavior and Link Utilization Ryoichi KAWAHARA Keisuke ISHIBASHI Takuya ASAKA Katsunori ORI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2003/11/01 Vol. E86-B No. 11 pp. 3244-3256 Type of Manuscript: PAPER Category: Network Management/Operation Keyword: TCP performance, IP, traffic management, number of active flows,
	Summary \| Full Text:PDF

A Scalable IP Traffic Control Method for Weighted Bandwidth Allocation per Flow Ryoichi KAWAHARA Naohisa KOMATSU
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2001/10/01 Vol. E84-B No. 10 pp. 2815-2829 Type of Manuscript: PAPER Category: Internet Keyword: weighted bandwidth allocation, differentiated services architecture, estimated number of flows,
	Summary \| Full Text:PDF

Performance of TCP/IP over ATM over an ADSL Ryoichi KAWAHARA Hiroshi SAITO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2000/02/25 Vol. E83-B No. 2 pp. 140-154 Type of Manuscript: Special Section PAPER (IEICE/IEEE Joint Special Issue on Recent Progress in ATM Technologies) Category: IP/ATM Keyword: ADSL, ATM, TCP, bandwidth variations, ABR, ABR switch algorithm, GFC,
	Summary \| Full Text:PDF

Method of Implementing GFR Service in Large-Scale Networks Using ABR Control Mechanism and Its Performance Analysis Ryoichi KAWAHARA Yuki KAMADO Masaaki OMOTANI Shunsaku NAGATA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 1999/12/25 Vol. E82-B No. 12 pp. 2081-2094 Type of Manuscript: PAPER Category: Communication Networks and Services Keyword: ATM, GFR, ABR, large-scale networks, VS/VD, explicit rate control, WRR,
	Summary \| Full Text:PDF

Overload Control for the Intelligent Network and Its Analysis by Simulation Ryoichi KAWAHARA Takuya ASAKA Shuichi SUMITA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 1995/04/25 Vol. E78-B No. 4 pp. 494-503 Type of Manuscript: Special Section PAPER (Special Issue on Traffic and Quality Control for Communication Networks) Category: Keyword: overload control, Intelligent Network, overloaded SCP, acceptable number of calls, various types of services,
	Summary \| Full Text:PDF