Kenya SUGIHARA

400Gbit/s/ch Field Demonstration of Modulation Format Adaptation Based on Pilot-Aided OSNR Estimation Using Real-Time DSP
Seiji OKAMOTO Kazushige YONENAGA Kengo HORIKOSHI Mitsuteru YOSHIDA Yutaka MIYAMOTO Masahito TOMIZAWA Takeshi OKAMOTO Hidemi NOGUCHI Jun-ichi ABE Junichiro MATSUI Hisao NAKASHIMA Yuichi AKIYAMA Takeshi HOSHIDA Hiroshi ONAKA Kenya SUGIHARA Soichiro KAMETANI Kazuo KUBO Takashi SUGIHARA 
Publication:   
Publication Date: 2017/10/01
Vol. E100-B  No. 10  pp. 1726-1733
Type of Manuscript:  INVITED PAPER (Joint Special Section on Opto-electronics and Communications for Future Optical Network)
Category: 
Keyword: 
adaptive modulation, field trial, real-time DSP, 400Gbit/s, 
 Summary | Full Text:PDF(4.3MB)
Maximum-Cover Source-Location Problems
Kenya SUGIHARA Hiro ITO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/05/01
Vol. E89-A  No. 5  pp. 1370-1377
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
graph, edge-connectivity, location problem, polynomial-time algorithm, NP-hard, 
 Summary | Full Text:PDF(288.5KB)