Jumpei TAKETSUGU


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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A Modification Strategy of Maximum Likelihood Method for Location Estimation Based on Received Signal Strength in Sensor Networks
Jumpei TAKETSUGU Jiro YAMAKITA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/05/01
Vol. E90-A  No. 5  pp. 1093-1104
Type of Manuscript:  PAPER
Category: General Fundamentals and Boundaries
Keyword: 
maximum likelihood methodlocation estimationreceived signal strengthsensor network
 Summary | Full Text:PDF(532.2KB)

A Study on Validity of Random Frame Error Assumption from the Viewpoint of TCP Performance in DS-CDMA Cellular System
Jumpei TAKETSUGU Shinsuke HARA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/07/01
Vol. E88-B  No. 7  pp. 2994-3004
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
TCPtransmission power controldownloadDS-CDMAcellular system
 Summary | Full Text:PDF(1.8MB)