Presentation 2016-10-20
Downlink MMSE-SVD Joint Tx/Rx Filtering for Distributed Antenna Small-Cell Network under Multi-cell Environment
Yuta Seki, Fumiyuki Adachi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Cooperative distributed antenna transmission (CDAT) can mitigate the impact of path loss, shadowing loss, and multi-path fading by adaptively choosing multiple distributed antennas close to user equipment (UE) and achieves a high link capacity. The CDAT is an advanced version of the coordinated multi-point (CoMP) transmission. Recently, we proposed a minimum mean square error filtering combined with singular value decomposition (MMSE-SVD) for multi-user spatial multiplexing and showed that it can achieve higher sum capacity than the use of conventional MMSE precoding. In cellular systems, since the same carrier-frequency is re-used by different macro base stations (MBSs), co-channel interference (CCI) from adjacent MBSs limits the capacity. In this paper, we modify the MMSE-SVD so as to take into account the CCI from adjacent macro-cells. We evaluate by computer simulation the achievable downlink sum capacity with the modified MMSE-SVD in a multi-cell environment and show that MMSE-SVD achieves higher capacity with lower computational complexity than the block diagonalization combined with SVD (BD-SVD).
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Distributed antenna / Downlink / OFDM / MU-MIMO / Co-channel interference
Paper # RCS2016-153
Date of Issue 2016-10-13 (RCS)

Conference Information
Committee RCS
Conference Date 2016/10/20(2days)
Place (in Japanese) (See Japanese page)
Place (in English) YRP (Yokosuka)
Topics (in Japanese) (See Japanese page)
Topics (in English) Wireless Communication Schemes, Wireless Communication Systems, Wireless Standards, Future Wireless Systems, etc.
Chair Hidekazu Murata(Kyoto Univ.)
Vice Chair Satoshi Denno(Okayama Univ.) / Yukitoshi Sanada(Keio Univ.) / Eisuke Fukuda(Fujitsu Labs.)
Secretary Satoshi Denno(Toshiba) / Yukitoshi Sanada(NTT DoCoMo) / Eisuke Fukuda
Assistant Tetsuya Yamamoto(Panasonic) / Toshihiko Nishimura(Hokkaido Univ.) / Koichi Ishihara(NTT) / Kazushi Muraoka(NEC) / Shinsuke Ibi(Osaka Univ.)

Paper Information
Registration To Technical Committee on Radio Communication Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Downlink MMSE-SVD Joint Tx/Rx Filtering for Distributed Antenna Small-Cell Network under Multi-cell Environment
Sub Title (in English)
Keyword(1) Distributed antenna
Keyword(2) Downlink
Keyword(3) OFDM
Keyword(4) MU-MIMO
Keyword(5) Co-channel interference
1st Author's Name Yuta Seki
1st Author's Affiliation Tohoku University(Tohoku Univ.)
2nd Author's Name Fumiyuki Adachi
2nd Author's Affiliation Tohoku University(Tohoku Univ.)
Date 2016-10-20
Paper # RCS2016-153
Volume (vol) vol.116
Number (no) RCS-257
Page pp.pp.1-6(RCS),
#Pages 6
Date of Issue 2016-10-13 (RCS)