Presentation 2016-01-22
Joint Performance Evaluation of Precoding and BP Decoding for Physical-layer Network Coding
Satoshi Nakao, Daisuke Umehara, Hidekazu Murata, Satoshi Denno,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Physical-layer network coding~(PNC) enables bi-directional wireless communications with low density parity check~(LDPC) coded orthogonal frequency division multiplexing~(OFDM) to achieve the frame exchange with half of time slots required conventional wireless relaying.In synchronous PNC, the receive amplitude and phase simultaneously transmitted from both the end nodes are synchronized at the relay node with the permissible subcarrier power.In this manuscript, we propose a compensation scheme of log-likelihood rate~(LLR) at the relay node to estimate the precoding weight error due to echo channel estimation and evaluate its performances in terms of frame error rate~(FER).Furthermore, we show the throughputs of conventional relaying, XOR network coding~(XOR-NC), and PNC for given two-way relay channels.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) physical-layer network coding / echo channel estimation / precoding / LDPC codes / BP decoding / frame error rate / throughput
Paper # CS2015-84
Date of Issue 2016-01-14 (CS)

Conference Information
Committee CS / OCS
Conference Date 2016/1/21(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Kagoshima University, Korimoto Campus, Inamori Auditorium
Topics (in Japanese) (See Japanese page)
Topics (in English) Network Core/Metro Systems, Submarine Transmission Systems, Optical Access Systems/Next Generation PON, Ethernet, Optical Transport Network (OTN), Transmission Monitoring and Supervisory Control, Optical Transmission System Design/Tools, Mobile Optical Network
Chair Toshinori Tsuboi(Tokyo Univ. of Tech.) / Kiyoshi Fukuchi(NEC)
Vice Chair Tetsuya Yokotani(Kanazawa Inst. of Tech.) / Akira Hirano(NTT)
Secretary Tetsuya Yokotani(Hiroshima City Univ.) / Akira Hirano(NTT)
Assistant

Paper Information
Registration To Technical Committee on Communication Systems / Technical Committee on Optical Communication Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Joint Performance Evaluation of Precoding and BP Decoding for Physical-layer Network Coding
Sub Title (in English)
Keyword(1) physical-layer network coding
Keyword(2) echo channel estimation
Keyword(3) precoding
Keyword(4) LDPC codes
Keyword(5) BP decoding
Keyword(6) frame error rate
Keyword(7) throughput
1st Author's Name Satoshi Nakao
1st Author's Affiliation Kyoto Institute of Techology(Kyoto Inst.of Tech.)
2nd Author's Name Daisuke Umehara
2nd Author's Affiliation Kyoto Institute of Techology(Kyoto Inst.of Tech.)
3rd Author's Name Hidekazu Murata
3rd Author's Affiliation Kyoto University(kyoto Univ.)
4th Author's Name Satoshi Denno
4th Author's Affiliation Okayama University(Okayama Univ.)
Date 2016-01-22
Paper # CS2015-84
Volume (vol) vol.115
Number (no) CS-406
Page pp.pp.67-72(CS),
#Pages 6
Date of Issue 2016-01-14 (CS)