Presentation 2016-03-02
Joint Interference Alignment Transceiver Filter Design and Power Allocation for Downlink Multi-User MIMO Interference Channels
Fereidoun H. Panahi, Tomoaki Ohtsuki, Wenjie Jiang, Yasushi Takatori, Kazuhiro Uehara,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We propose centralized iterative algorithms that jointly determine the optimal transmit and receive filters as well as the optimal power allocation for a K-user multiple-input multiple-output (MIMO) interference channel (IC). The optimality criterion is based on the achievable sum-rate and the average per user multiplexing gain in the MIMO IC. By allowing channel state information (CSI) exchanged between users and a central unit (CU), we design a feedback topology where a CU collects local CSIs from all users, computes all transmit and receive filters and sends them to corresponding user-base station (BS) pairs. At the CU, we propose iterative algorithms utilizing alternating optimization strategy to design the filters. In most of the studies on the MIMO IC, choice of equal transmit powers for all user-BS pairs ignores the essential need to search for the optimal power allocation policy; they do not take the full advantage of the system?s total power. How to allocate power among all the user-BS pairs in the network based on the sum-rate maximization strategy is the key to this work.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Interference alignment (IA) / Power allocation / Sum-rate maximization
Paper # RCS2015-352
Date of Issue 2016-02-24 (RCS)

Conference Information
Committee RCS / CCS / SR / SRW
Conference Date 2016/3/2(3days)
Place (in Japanese) (See Japanese page)
Place (in English) Tokyo Institute of Technology
Topics (in Japanese) (See Japanese page)
Topics (in English) Mobile Communication Workshop
Chair Makoto Taromaru(Fukuoka Univ.) / Hiroo Sekiya(Chiba Univ.) / Takeo Fujii(Univ. of Electro-Comm.) / Hiroshi Harada(Kyoto Univ.)
Vice Chair Hidekazu Murata(Kyoto Univ.) / Satoshi Denno(Okayama Univ.) / Yukitoshi Sanada(Keio Univ.) / Yasuhiro Tsubo(Ritsumeikan Univ.) / Naoki Wakamiya(Osaka Univ.) / Kenta Umebayashi(Tokyo Univ. of Agric. and Tech.) / Masayuki Ariyoshi(NEC) / Masafumi Kato(Fujitsu) / Satoshi Denno(Okayama Univ.)
Secretary Hidekazu Murata(Mitsubishi Electric) / Satoshi Denno(NTT DoCoMo) / Yukitoshi Sanada(Kagawa National College of Tech.) / Yasuhiro Tsubo(Kyoto Sangyo Univ.) / Naoki Wakamiya(Shinshu Univ.) / Kenta Umebayashi(NICT) / Masayuki Ariyoshi(NTT) / Masafumi Kato(NICT) / Satoshi Denno
Assistant Jun Mashino(NTT) / Tetsuya Yamamoto(Panasonic) / Takamichi Inoue(NEC) / Tomoya Tandai(Toshiba) / Toshihiko Nishimura(Hokkaido Univ.) / Takayuki Kimura(Nippon Inst. of Tech.) / Song-Ju Kim(NIMS) / Ryo Takahashi(Kyoto Univ.) / Junnosuke Teramae(Osaka Univ.) / Kazuto Yano(ATR) / Mamiko Inamori(Tokai Univ.) / Hiroyuki Shiba(NTT) / Gia Khanh Tran(Tokyo Inst. of Tech.) / Wen Yun(Fujitsu) / Keiichi Mizutani(Kyoto Univ.)

Paper Information
Registration To Technical Committee on Radio Communication Systems / Technical Committee on Complex Communication Sciences / Technical Committee on Smart Radio / Technical Committee on Short Range Wireless Communications
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Joint Interference Alignment Transceiver Filter Design and Power Allocation for Downlink Multi-User MIMO Interference Channels
Sub Title (in English)
Keyword(1) Interference alignment (IA)
Keyword(2) Power allocation
Keyword(3) Sum-rate maximization
1st Author's Name Fereidoun H. Panahi
1st Author's Affiliation Keio University(Keio Univ.)
2nd Author's Name Tomoaki Ohtsuki
2nd Author's Affiliation Keio University(Keio Univ.)
3rd Author's Name Wenjie Jiang
3rd Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
4th Author's Name Yasushi Takatori
4th Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
5th Author's Name Kazuhiro Uehara
5th Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
Date 2016-03-02
Paper # RCS2015-352
Volume (vol) vol.115
Number (no) RCS-472
Page pp.pp.115-120(RCS),
#Pages 6
Date of Issue 2016-02-24 (RCS)