Kazuji WATANABE

Novel DSA Scheme that Uses Traffic Characteristics to Enhance Throughput Performance of Wide Area Ubiquitous Wireless Networks
Yoshitaka SHIMIZU  Fusao NUNO  Kazuji WATANABE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/11/01
Vol. E91-B  No. 11  pp. 3677-3687
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
Keyword: 
ubiquitous network,  wireless sensor network,  DSA scheme,  random access,  polling, 
  Summary |  Full Text:PDF (2.2MB)
A Burst Modulation/Demodulation Method for Narrowband Ubiquitous Communication Systems
Takafumi FUJITA  Daisei UCHIDA  Yosuke FUJINO  Osamu KAGAMI  Kazuji WATANABE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/11/01
Vol. E91-B  No. 11  pp. 3416-3425
Type of Manuscript: Special Section PAPER (Special Section on Emerging Technologies for Practical Ubiquitous and Sensor Networks)
Category: 
Keyword: 
burst modem,  ubiquitous,  transmission efficiency,  burst synchronization,  testbed study, 
  Summary |  Full Text:PDF (3.3MB)
High-Precision AFC Circuit Applied to 64QAM Point-to-Multipoint Burst Communications
Yushi SHIRATO  Kazuji WATANABE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/12/01
Vol. E89-B  No. 12  pp. 3288-3295
Type of Manuscript: PAPER
Category: Transmission Systems and Transmission Equipment for Communications
Keyword: 
FWA,  AFC,  64QAM,  burst communication, 
  Summary |  Full Text:PDF (906.8KB)
A Proposal of Simplified Viterbi Equalizer Applied to FWA Systems Employing 64QAM Signals
Hiroshi YOSHIOKA  Yushi SHIRATO  Kazuji WATANABE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/03/01
Vol. E89-B  No. 3  pp. 784-790
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
Keyword: 
64QAM,  FWA,  Viterbi equalizer, 
  Summary |  Full Text:PDF (1.4MB)
Long-Span Quasi-Millimeter-Wave-Band Fixed Wireless Access System Employing Link Adaptation by Symbol Rate
Mitsutoshi MATSUDA  Kazuji WATANABE  Hirofumi ICHIKAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/01/01
Vol. E87-B  No. 1  pp. 117-123
Type of Manuscript: PAPER
Category: Terrestrial Radio Communications
Keyword: 
quasi-millimeter-wave-band,  FWA,  rain attenuation,  symbol rate,  link adaptation, 
  Summary |  Full Text:PDF (1.8MB)
Broadband Space Diversity for Digital Microwave Radio Systems
Osamu KAGAMI  Kazuji WATANABE  Teruaki YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/01/20
Vol. E81-B  No. 1  pp. 82-88
Type of Manuscript: PAPER
Category: Radio Communication
Keyword: 
digital microwave radio,  space diversity,  inband amplitude dispersion,  signal power,  three-ray model, 
  Summary |  Full Text:PDF (599.6KB)
Estimation Method of Route Outage Probability in Non-regenerative Repeater Digital Microwave Radio Systems
Kazuji WATANABE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/01/20
Vol. E81-B  No. 1  pp. 89-95
Type of Manuscript: PAPER
Category: Radio Communication
Keyword: 
non-regenerative repeater,  digital microwave radio systems,  outage probability,  16QAM, 
  Summary |  Full Text:PDF (448.2KB)
Estimation Method for Extraction and Reinjection-Type Interference Canceller
Shuta UWANO  Kazuji WATANABE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1996/03/20
Vol. E79-B  No. 3  pp. 373-377
Type of Manuscript: Special Section LETTER (Special Issue on Advanced Adaptive Radio Communication Technologies)
Category: 
Keyword: 
  Summary |  Full Text:PDF (362.4KB)