K
K. Kubo
Researcher at Mitsubishi Electric
Publications - 28
Citations - 852
K. Kubo is an academic researcher from Mitsubishi Electric. The author has contributed to research in topics: Forward error correction & Coding gain. The author has an hindex of 15, co-authored 28 publications receiving 824 citations. Previous affiliations of K. Kubo include Mitsubishi.
Papers
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Journal ArticleDOI
Forward error correction based on block turbo code with 3-bit soft decision for 10-Gb/s optical communication systems
Takashi Mizuochi,Y. Miyata,Tetsuro Kobayashi,K. Ouchi,K. Kuno,K. Kubo,K. Shimizu,H. Tagami,Hideo Yoshida,Hachiro Fujita,M. Akita,Kuniaki Motoshima +11 more
TL;DR: The first experimental demonstration of a forward error correction (FEC) for 10-Gb/s optical communication systems based on a block turbo code (BTC) is reported and the ability of the proposed FEC system to achieve a receiver sensitivity of seven photons per information bit when combined with return-to-zero differential phase-shift keying modulation is demonstrated.
Proceedings ArticleDOI
A spatially-coupled type LDPC Code with an NCG of 12 dB for optical transmission beyond 100 Gb/s
Kenya Sugihara,Y. Miyata,T. Sugihara,K. Kubo,Hideo Yoshida,Wataru Matsumoto,Takashi Mizuochi +6 more
TL;DR: A novel SD-FEC employing the concatenation of a spatially-coupled type irregular LDPC code with a BCH code is proposed, showing an NCG of 12.0 dB at a BER of 10-15 with 25.5% redundancy.
Journal ArticleDOI
Soft-Decision-Based Forward Error Correction for 100 Gb/s Transport Systems
K. Onohara,T. Sugihara,Yoshiaki Konishi,Y. Miyata,Inoue Tomoka,Soichiro Kametani,Kenya Sugihara,K. Kubo,Hideo Yoshida,Takashi Mizuochi +9 more
TL;DR: The concept of hardware emulation, with a scalable architecture for the FEC decoder boards, is introduced by way of a pipelined architecture and the practical implementation of soft-decision FEC for 100 Gb/s transport systems is developed.
Proceedings ArticleDOI
A triple-concatenated FEC using soft-decision decoding for 100 Gb/s optical transmission
Yoshikuni Miyata,Kenya Sugihara,Wataru Matsumoto,Kiyoshi Onohara,Takashi Sugihara,K. Kubo,Hideo Yoshida,Takashi Mizuochi +7 more
TL;DR: A novel triple-concatenated forward error correction for 100 Gb/s transmission with a net coding gain of 10.8 dB is obtained by a soft-decision LPDC code concatenated with the enhanced FEC listed in G.975.1.
Journal ArticleDOI
Experimental Demonstration of Concatenated LDPC and RS Codes by FPGAs Emulation
Takashi Mizuochi,Yoshiaki Konishi,Y. Miyata,Inoue Tomoka,K. Onohara,Soichiro Kametani,T. Sugihara,K. Kubo,Hideo Yoshida,Tetsuro Kobayashi,T. Ichikawa +10 more
TL;DR: The concatenation of low-density parity-check and Reed-Solomon codes for forward error correction has been experimentally demonstrated for the first time in this letter.