Atsushi FUJIWARA

Evaluation of Cell Coverage and System Throughput in Multihop DS-CDMA Cellular Network
Atsushi FUJIWARA Shinji TAKEDA Hitoshi YOSHINO Narumi UMEDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/09/01
Vol. E88-B  No. 9  pp. 3541-3545
Type of Manuscript:  Special Section PAPER (Special Section on Advances in Ad Hoc Mobile Communications and Networking)
Category: 
Keyword: 
cellular system, DS-CDMA, multihop, interference margin, system capacity, area coverage, 
 Summary | Full Text:PDF
Centralized Channel Allocation Technique to Alleviate Exposed Terminal Problem in CSMA/CA-Based Mesh Networks--Solution Employing Chromatic Graph Approach--
Atsushi FUJIWARA Yoichi MATSUMOTO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/03/01
Vol. E88-B  No. 3  pp. 958-964
Type of Manuscript:  Special Section PAPER (Special Section on Ubiquitous Networks)
Category: Network
Keyword: 
IEEE 802.11, mesh network, multihop transmission, exposed terminal problem, TCP, coloring problem, 
 Summary | Full Text:PDF
Turbo Codes Application to DS-CDMA Mobile Radio
Atsushi FUJIWARA Hirohito SUDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/11/25
Vol. E81-A  No. 11  pp. 2269-2273
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
turbo codes, DS-CDMA, mobile radio, fading channel, 
 Summary | Full Text:PDF
Computational Complexity Reduction of Trellis-Coded Co-channel Interference Canceller
Hidekazu MURATA Atsushi FUJIWARA Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1996/03/25
Vol. E79-B  No. 3  pp. 342-352
Type of Manuscript:  Special Section PAPER (Special Issue on Advanced Adaptive Radio Communication Technologies)
Category: Modulation, Demodulation
Keyword: 
digital cellular radio, co-channel interference, interference canceller, trellis coded modulation, 
 Summary | Full Text:PDF