Jun-ichi ABE


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 modulationfield trialreal-time DSP400Gbit/s
 Summary | Full Text:PDF(4.3MB)

Throughput Enhancement for SATCOM Systems Using Dynamic Spectrum Controlled Channel Allocation under Variable Propagation Conditions
Katsuya NAKAHIRA Jun MASHINO Jun-ichi ABE Daisuke MURAYAMA Tadao NAKAGAWA Takatoshi SUGIYAMA 
Publication:   
Publication Date: 2017/02/01
Vol. E100-B  No. 2  pp. 390-399
Type of Manuscript:  PAPER
Category: Satellite Communications
Keyword: 
satellite communicationchannel allocationresource controladaptive coding and modulationspectrum compressionspectrum divisiondemand assigned multiple access
 Summary | Full Text:PDF(2.6MB)

Novel Channel Allocation Algorithm Using Spectrum Control Technique for Effective Usage of both Satellite Transponder Bandwidth and Satellite Transmission Power
Katsuya NAKAHIRA Jun-ichi ABE Jun MASHINO Takatoshi SUGIYAMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/11/01
Vol. E95-B  No. 11  pp. 3393-3403
Type of Manuscript:  Special Section PAPER (Special Section on Satellite Communication Technologies in Conjunction with Main Topics of JC-SAT2011)
Category: 
Keyword: 
satellite communicationchannel allocationadaptive coding and modulationmulti-carrier transmissionsingle-carrier transmissionspectrum compressionspectrum divisionDAMA
 Summary | Full Text:PDF(2.3MB)

Direct Spectrum Division Transmission for Highly Efficient Frequency Utilization in Satellite Communications
Jun-ichi ABE Fumihiro YAMASHITA Katsuya NAKAHIRA Kiyoshi KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/02/01
Vol. E95-B  No. 2  pp. 563-571
Type of Manuscript:  PAPER
Category: Satellite Communications
Keyword: 
satellite communicationsfilter bankdirect spectrum division transmissionspectrum editing technique
 Summary | Full Text:PDF(2.3MB)

A Prototype Modem for Hyper-Multipoint Data Gathering SATCOM Systems --- A Group Modem Applicable to Arbitrarily and Dynamically Assigned FDMA Signals ---
Kiyoshi KOBAYASHI Fumihiro YAMASHITA Jun-ichi ABE Masazumi UEBA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/11/01
Vol. E92-B  No. 11  pp. 3318-3325
Type of Manuscript:  Special Section PAPER (Special Section on Satellite Communication Technologies in Conjunction with Main Topics of JC-SAT2008)
Category: 
Keyword: 
FFT filter bankgroup modemhyper-multipoint data gatheringarbitrary and dynamic frequency assignmentsatellite communication
 Summary | Full Text:PDF(1.7MB)