Presentation 2017-08-17
Theoretical Analysis of System Capacity Performance in MU-MIMO THP
Hirofumi Suganuma, Hiruma Nobuhiro, Hiromichi Tomeba, Takashi Onodera, Fumiaki Maehara,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) MU-MIMO Tomlinson-Harashima precoding (THP) achieves higher system capacity comparing with MU-MIMO linear precoding (LP) thanks to suppressing the noise enhancement. In MU-MIMO THP, modulo loss is caused by the modulo operation in relatively lower carrier-to-noise ratio (CNR), which degrades the transmission performance. In this report, we theoretically analyze the system capacity for MU-MIMO THP considering the impact of the modulo loss. The feature of the proposed analysis is to make use of the fact that the effect of the modulo loss can be represented by the mod-Λ channel. The theoretical results obtained by the proposed approach are compared with MU-MIMO LP with a parameter of the number of transmit/receive antennas, which clearly demonstrates the effectiveness of the adoption of THP in the presence of the modulo loss.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) MU-MIMO / THP / system capacity / mod-Λ channel / ordering
Paper # RCS2017-148
Date of Issue 2017-08-10 (RCS)

Conference Information
Committee RCS / SAT
Conference Date 2017/8/17(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Niigata Univ.
Topics (in Japanese) (See Japanese page)
Topics (in English) Mobile Satellite Communications, Broadcasting, Error Correction, Wireless Communication Systems, etc.
Chair Hidekazu Murata(Kyoto Univ.) / Toshinori Susuki(Tohoku Gakuin Univ.)
Vice Chair Yukitoshi Sanada(Keio Univ.) / Eisuke Fukuda(Fujitsu Labs.) / Satoshi Suyama(NTT DoCoMo) / Hiroyuki Tsuji(NICT) / Fumihiro Yamashita(NTT)
Secretary Yukitoshi Sanada(Toshiba) / Eisuke Fukuda(Hokkaido Univ.) / Satoshi Suyama(KDDI R&D Labs.) / Hiroyuki Tsuji(NICT) / Fumihiro Yamashita
Assistant Tetsuya Yamamoto(Panasonic) / Koichi Ishihara(NTT) / Kazushi Muraoka(NEC) / Shinsuke Ibi(Osaka Univ.) / Hiroshi Nishimoto(Mitsubishi Electric)

Paper Information
Registration To Technical Committee on Radio Communication Systems / Technical Committee on Satellite Telecommunications
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Theoretical Analysis of System Capacity Performance in MU-MIMO THP
Sub Title (in English)
Keyword(1) MU-MIMO
Keyword(2) THP
Keyword(3) system capacity
Keyword(4) mod-Λ channel
Keyword(5) ordering
1st Author's Name Hirofumi Suganuma
1st Author's Affiliation Waseda University(Waseda Univ.)
2nd Author's Name Hiruma Nobuhiro
2nd Author's Affiliation Waseda University(Waseda Univ.)
3rd Author's Name Hiromichi Tomeba
3rd Author's Affiliation Sharp Corporation(Sharp)
4th Author's Name Takashi Onodera
4th Author's Affiliation Sharp Corporation(Sharp)
5th Author's Name Fumiaki Maehara
5th Author's Affiliation Waseda University(Waseda Univ.)
Date 2017-08-17
Paper # RCS2017-148
Volume (vol) vol.117
Number (no) RCS-175
Page pp.pp.31-35(RCS),
#Pages 5
Date of Issue 2017-08-10 (RCS)