Ryuichi WATANABE


Channel Allocation and DBA Mechanisms for Improvement of Bandwidth Utilization Performance of ECDM-PON Systems
Yoshihiro NAKAHIRA Ryuichi WATANABE Masayuki KASHIMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/02/01
Vol. E94-B  No. 2  pp. 437-443
Type of Manuscript:  PAPER
Category: Fiber-Optic Transmission for Communications
Keyword: 
ECDMPONDBAtraffic engineeringbandwidth
 Summary | Full Text:PDF(1.2MB)

A Guard Time Estimation Method for TCM-TDMA PDS System Considering N-th Order Fresnel Reflections
Norio TAMAKI Hideaki KIMURA Ryuichi WATANABE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1999/08/25
Vol. E82-B  No. 8  pp. 1311-1317
Type of Manuscript:  PAPER
Category: Optical Communication
Keyword: 
optical fiber access networkpassive double star architectureTCM-TDMA PDS system
 Summary | Full Text:PDF(491.8KB)

Optical Demultiplexer Using a Pin Photo-Diode Detector Array
Ryuichi WATANABE Kazuhito OHNISHI Kiyoshi NOSU 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1981/02/25
Vol. E64-E  No. 2  pp. 92-93
Type of Manuscript:  LETTER
Category: Transmission Systems
Keyword: 
 Summary | Full Text:PDF(139.4KB)