Presentation 2019-07-10
A Study on Concatenated Beam- and Antenna- domain Layered BP for Large MIMO Detection
Takumi Takahashi, Antti Tolli, Shinsuke Ibi, Seiichi Sampei,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) This paper proposes a concatenated beam- and antenna-domain belief propagation (BP) for realizing low-complexity large multi-user MIMO detection. As a low-complexity strategy for large-scale multi-user detection (MUD), group-specific signal detection in the beam domain has been proposed, where user equipments (UEs) are grouped based on the long-term channel statistics at a base station (BS) to design outer beamformer (OBF). In this case, the BP-based algorithm is effective as the subsequent signal detector to compensate for the performance degradation due to the dimensionality reduction caused by the OBF. However, the convergence characteristics of beam-domain BP is degraded as compared to the antenna-domain BP due to an increased correlation between the beliefs. To avoid the impairments, we propose a novel concatenated structure of beam- and antenna-domain BP layers, which allows us to benefit from the advantages of both domains while maintaining low signal processing complexity. Numerical results show the validity of our proposed method in terms of the bit error rate (BER) performance both in the coded and uncoded cases and the computational complexity.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Large MIMO / Belief propagation / Beam-domain processing / Low complexity / Domain conversion
Paper # RCC2019-15,NS2019-48,RCS2019-105,SR2019-24,SeMI2019-24
Date of Issue 2019-07-03 (RCC, NS, RCS, SR, SeMI)

Conference Information
Committee SeMI / RCS / NS / SR / RCC
Conference Date 2019/7/10(3days)
Place (in Japanese) (See Japanese page)
Place (in English) I-Site Nanba(Osaka)
Topics (in Japanese) (See Japanese page)
Topics (in English) Communication and Networked Control for the Future Radio of the AI Age, etc
Chair Susumu Ishihara(Shizuoka Univ.) / Tomoaki Otsuki(Keio Univ.) / Yoshikatsu Okazaki(NTT) / Masayuki Ariyoshi(NEC) / Kazunori Hayashi(Osaka City Univ.)
Vice Chair Kazuya Monden(Hitachi) / Koji Yamamoto(Kyoto Univ.) / Satoshi Suyama(NTT DoCoMo) / Fumiaki Maehara(Waseda Univ.) / Toshihiko Nishimura(Hokkaido Univ.) / Akihiro Nakao(Univ. of Tokyo) / Suguru Kameda(Tohoku Univ.) / Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT) / Shunichi Azuma(Nagoya Univ.) / HUAN-BANG LI(NICT)
Secretary Kazuya Monden(Kyoto Univ.) / Koji Yamamoto(NTT DOCOMO) / Satoshi Suyama(Hitachi) / Fumiaki Maehara(NTT) / Toshihiko Nishimura(Kyushu Univ.) / Akihiro Nakao(Osaka Pref Univ.) / Suguru Kameda(NTT) / Osamu Takyu(ATR) / Kentaro Ishidu(Univ. of Electro-Comm.) / Shunichi Azuma(Mie Univ.) / HUAN-BANG LI(Kagawa Univ.)
Assistant Akira Uchiyama(Osaka Univ.) / Kenji Kanai(Waseda Univ.) / Masafumi Hashimoto(Osaka Univ.) / Kazushi Muraoka(NTT DOCOMO) / Shinsuke Ibi(Doshisha Univ.) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Shinya Kumagai(Fujitsu) / Shinya Kawano(NTT) / Mai Ohta(Fukuoka Univ.) / Teppei Oyama(Fujitsu) / Kentaro Kobayashi(Nagoya Univ.) / Toshinori Kagawa(NICT) / Masateru Ogura(NAIST)

Paper Information
Registration To Technical Committee on Sensor Network and Mobile Intelligence / Technical Committee on Radio Communication Systems / Technical Committee on Network Systems / Technical Committee on Smart Radio / Technical Committee on Reliable Communication and Control
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Study on Concatenated Beam- and Antenna- domain Layered BP for Large MIMO Detection
Sub Title (in English)
Keyword(1) Large MIMO
Keyword(2) Belief propagation
Keyword(3) Beam-domain processing
Keyword(4) Low complexity
Keyword(5) Domain conversion
1st Author's Name Takumi Takahashi
1st Author's Affiliation Osaka University(Osaka Univ.)
2nd Author's Name Antti Tolli
2nd Author's Affiliation University of Oulu(Univ. of Oulu)
3rd Author's Name Shinsuke Ibi
3rd Author's Affiliation Doshisha University(Doshisha Univ.)
4th Author's Name Seiichi Sampei
4th Author's Affiliation Osaka University(Osaka Univ.)
Date 2019-07-10
Paper # RCC2019-15,NS2019-48,RCS2019-105,SR2019-24,SeMI2019-24
Volume (vol) vol.119
Number (no) RCC-106,NS-107,RCS-108,SR-109,SeMI-110
Page pp.pp.21-26(RCC), pp.31-36(NS), pp.25-30(RCS), pp.31-36(SR), pp.35-40(SeMI),
#Pages 6
Date of Issue 2019-07-03 (RCC, NS, RCS, SR, SeMI)