Katsumi SAKAKIBARA


Bidirectional Packet Aggregation and Coding for Efficient VoIP Transmission in Wireless Multi-Hop Networks
Jun HASEGAWA Hiroyuki YOMO Yoshihisa KONDO Peter DAVIS Katsumi SAKAKIBARA Ryu MIURA Sadao OBANA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/10/01
Vol. E92-B  No. 10  pp. 3060-3070
Type of Manuscript:  Special Section PAPER (Special Section on Advanced Information and Communication Technologies and Services in Conjunction with Main Topics of APCC/COIN 2008)
Category: 
Keyword: 
wireless ad-hoc networkpacket aggregationnetwork codingVoIP
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On the Effect of an Invertible Code on Block Undelivered Probability in Cooperative Multi-Hop Relaying Networks
Katsumi SAKAKIBARA Jumpei TAKETSUGU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/10/01
Vol. E92-A  No. 10  pp. 2492-2494
Type of Manuscript:  Special Section LETTER (Special Section on Information Theory and Its Applications)
Category: Communication Theory
Keyword: 
cooperative relayingmulti-hop networksinvertible codesundelivered probabilityabsorbing Markov chain
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Analysis of Unsaturation Performance of IEEE 802.11 DCF with and without Slow Contention Window Decrease
Katsumi SAKAKIBARA Shogo CHIKADA Jiro YAMAKITA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/10/01
Vol. E88-A  No. 10  pp. 2852-2862
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Communication Theory
Keyword: 
IEEE 802.11 DCFbackoff algorithmequilibrium point analysisthroughputtransmission delay
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Combinatorial Effects of Timer Control and Backoff Algorithms on Bulk Data Transfer over Two-State Markovian Channels
Katsumi SAKAKIBARA Takashi GONDA Jiro YAMAKITA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/01/01
Vol. E87-B  No. 1  pp. 165-170
Type of Manuscript:  LETTER
Category: Fundamental Theories
Keyword: 
retransmission controltimer controlbackoff algorithmstwo-state Markov channelspacket dropping probability
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On the Stability of Slow-Frequency-Hopped Slotted ALOHA Systems with Retransmission Cutoff
Katsumi SAKAKIBARA Jiro YAMAKITA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/10/01
Vol. E84-A  No. 10  pp. 2404-2409
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Communication Systems
Keyword: 
stabilityslow-frequency-hoppingslotted ALOHAcatastrophe theoryretransmission cutoff
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Performance of p-Persistent Frequency-Hopped Slotted Random Access Protocol
Katsumi SAKAKIBARA Tomohiro KATAGIRI Hirokazu SUYAMA Jiro YAMAKITA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/04/01
Vol. E84-B  No. 4  pp. 1062-1069
Type of Manuscript:  PAPER
Category: Network
Keyword: 
frequency-hoppingslotted random access protocolthroughputaverage transmission delay
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On Optimal and Proper Binary Codes from Irreducible Cyclic Codes over GF(2m)
Katsumi SAKAKIBARA Ritsuko IWASA Yoshiharu YUBA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/10/25
Vol. E82-A  No. 10  pp. 2191-2193
Type of Manuscript:  Special Section LETTER (Special Section on Information Theory and Its Applications)
Category: Coding Theory
Keyword: 
binary imagesirreducible cyclic codes over GF(2m)optimal codesGriesmer boundproper codesundetected error probability
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Performance Comparison of Two Retransmission Control Schemes for Slow-Frequency-Hopped Communication Systems
Katsumi SAKAKIBARA Kazushi MOTONAGA Yoshiharu YUBA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/11/25
Vol. E81-A  No. 11  pp. 2346-2349
Type of Manuscript:  Special Section LETTER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
frequency-hopped communicationsretransmission controlnormalized throughput98% packet transmission delay
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On the Stability of Five Types of Slotted ALOHA Systems with Capture and Multiple Packet Reception
Katsumi SAKAKIBARA Michiru HANAOKA Yoshiharu YUBA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/10/25
Vol. E81-A  No. 10  pp. 2092-2100
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Spread Spectrum System
Keyword: 
slotted ALOHAcapture effectstabilitycusp catastrophecusp pointbifurcation setsmultiple packet reception
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Performance of Type-I Hybrid Selective-Repeat ARQ with Finite Buffer on Fading Channels
Hirokazu TANAKA Katsumi SAKAKIBARA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1997/01/25
Vol. E80-B  No. 1  pp. 59-66
Type of Manuscript:  Special Section PAPER (Special Issue on Advances in Satellite Communications toward Multimedia Era)
Category: Protocol
Keyword: 
ARQReed-Solomon codefading channelmobile communication
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Some Optimal and Quasi-Optimal Binary Codes from Cyclic Codes over GF(2m)
Katsumi SAKAKIBARA Masao KASAHARA Yoshiharu YUBA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/10/25
Vol. E79-A  No. 10  pp. 1737-1738
Type of Manuscript:  LETTER
Category: Information Theory and Coding Theory
Keyword: 
optimal binary codesbinary image of cyclic codesGriesmer boundconcatenated structure
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Notes on the Average Binary Weight Enumerator of Generalized Algebraic-Geometric Codes
Takeshi UMEDA Katsumi SAKAKIBARA Masao KASAHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/09/25
Vol. E79-A  No. 9  pp. 1444-1446
Type of Manuscript:  Special Section LETTER (Special Section on Information Theory and Its Applications)
Category: Coding Theory
Keyword: 
Varshamov-Gilbert boundalgebraic-geometric codesbinary expansionaverage weight enumerator
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On the Unequal Error Protection Capability of a q-Ary Image of a Low-Rate qm-Ary Cyclic Code
Katsumi SAKAKIBARA Masao KASAHARA Yoshiharu YUBA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/09/25
Vol. E79-A  No. 9  pp. 1305-1312
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Coding Theory
Keyword: 
unequal error protectionq-ary image of qm-ary cyclic codeconcatenated structure
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Performance of a Multicast Error Control Protocol Based on a Product Code Structure--Part : On Burst Error Channels--
Katsumi SAKAKIBARA Masao KASAHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1992/12/25
Vol. E75-A  No. 12  pp. 1684-1695
Type of Manuscript:  Special Section PAPER (Special Section on Networks and Mobile Communications)
Category: 
Keyword: 
Multicast error control protocolsproduct codesburst error channelsGilbert modelinterleaving
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Performance of a Multicast Error Control Protocol Based on a Product Code Structure--Part : On Random Error Channels--
Katsumi SAKAKIBARA Masao KASAHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1992/12/25
Vol. E75-A  No. 12  pp. 1674-1683
Type of Manuscript:  Special Section PAPER (Special Section on Networks and Mobile Communications)
Category: 
Keyword: 
multicast error control protocolsproduct codesReddy-Robinson algorithmbinary symmetric channels
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