Presentation 2022-01-20
Influence of Design-SNR on Error Rate Performance Employing BP Decoder
Kohei Ueda, Satoshi Suyama, Takahiro Asai, Miki Nobuhiko,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Belief Propagation (BP) decoding, which is commonly used to decode Low Density Parity Check (LDPC) codes, is an effective way to reduce the decoding delay. However, the error rate performance of BP decoding is degraded. In this paper, we study the effect of the design signal-to-noise ratio (design-SNR) on the bit error rate (BER) performance of BP decoding. First, we generate multiple Polar codes with multiple design-SNRs. Based on the BER performance, we optimize the Polar codes used for BP decoding. As a result of the simulation under the condition of code length N=1024 and coding ratio R=1/2, it is found that the BER performance is slightly improved by setting slightly larger design-SNR.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Polar codes / Belief Propagation
Paper # IT2021-30,SIP2021-38,RCS2021-198
Date of Issue 2022-01-13 (IT, SIP, RCS)

Conference Information
Committee RCS / SIP / IT
Conference Date 2022/1/20(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Eiji Okamoto(Nagoya Inst. of Tech.) / Yukihiro Bandou(NTT) / Tadashi Wadayama(Nagoya Inst. of Tech.)
Vice Chair Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Toshihisa Tanaka(Tokyo Univ. Agri.&Tech.) / Takayuki Nakachi(Ryukyu Univ.) / Tetsuya Kojima(Tokyo Kosen)
Secretary Toshihiko Nishimura(NEC) / Tomoya Tandai(Panasonic) / Fumihide Kojima(Xiaomi) / Toshihisa Tanaka(Takushoku Univ.) / Takayuki Nakachi(Tokyo Univ. Agri.&Tech.) / Tetsuya Kojima(Saitamai Univ.)
Assistant Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) / Taichi Yoshida(UEC) / Seisuke Kyochi(Univ. of Kitakyushu) / Masanori Hirotomo(Saga Univ.)

Paper Information
Registration To Technical Committee on Radio Communication Systems / Technical Committee on Signal Processing / Technical Committee on Information Theory
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Influence of Design-SNR on Error Rate Performance Employing BP Decoder
Sub Title (in English)
Keyword(1) Polar codes
Keyword(2) Belief Propagation
1st Author's Name Kohei Ueda
1st Author's Affiliation Kagawa University(Kagawa Univ.)
2nd Author's Name Satoshi Suyama
2nd Author's Affiliation NTT DOCOMO, INC.(NTT DOCOMO)
3rd Author's Name Takahiro Asai
3rd Author's Affiliation NTT DOCOMO, INC.(NTT DOCOMO)
4th Author's Name Miki Nobuhiko
4th Author's Affiliation Kagawa University(Kagawa Univ.)
Date 2022-01-20
Paper # IT2021-30,SIP2021-38,RCS2021-198
Volume (vol) vol.121
Number (no) IT-327,SIP-328,RCS-329
Page pp.pp.13-17(IT), pp.13-17(SIP), pp.13-17(RCS),
#Pages 5
Date of Issue 2022-01-13 (IT, SIP, RCS)