A leakage-based precoding scheme for downlink multi-user MIMO channels

被引：592

作者：

Sadek, Mirette ^{[1
]}

Tarighat, Alireza ^{[1
]}

Sayed, Ali H. ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA

来源：

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2007年 / 6卷 / 05期

基金：

美国国家科学基金会;

关键词：

MIMO communications; multiuser precoding; Alamouti coding; multiuser beamforming; generalized eigenvalue problem;

D O I：

10.1109/TWC.2007.360373

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In multiuser MIMO downlink communications, it is necessary to design precoding schemes that are able to suppress co-channel interference. This paper proposes designing precoders by maximizing the so-called signal-to-leakage-and-noise ratio (SLNR) for all users simultaneously. The presentation considers communications with both single- and multi-stream cases, as well as MIMO systems that employ Alamouti coding. The effect of channel estimation errors on system performance is also studied. Compared with zero-forcing solutions, the proposed method does not impose a condition on the relation between the number of transmit and receive antennas, and it also avoids noise enhancement. Simulations illustrate the performance of the scheme.

引用

页码：1711 / 1721

页数：11

共 17 条

[1] A simple transmit diversity technique for wireless communications [J].

Alamouti, SM .

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 1998, 16 (08) :1451-1458

[2] A pragmatic approach to multi-user spatial multiplexing [J].

Bengtsson, M .

SAM2002: IEEE SENSOR ARRAY AND MULTICHANNEL SIGNAL PROCESSING WORKSHOP PROCEEDINGS, 2002, :130-134

[3]

Bourdoux A, 2002, IEEE VTS VEH TECHNOL, P171, DOI 10.1109/VETECF.2002.1040325

[4]

Chen R, 2004, 2004 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-7, P2689

[5]

Heath RW, 2001, CONF REC ASILOMAR C, P1194, DOI 10.1109/ACSSC.2001.987680

[6]

Khaled N, 2004, 2004 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOL IV, PROCEEDINGS, P485

[7] Generalized multiuser orthogonal space-division multiplexing [J].

Pan, ZG ;

Wong, KK ;

Ng, TS .

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2004, 3 (06) :1969-1973

[8] Active antenna selection in multiuser MIMO communications [J].

Sadek, Mirette ;

Tarighat, Alireza ;

Sayed, Ali H. .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2007, 55 (04) :1498-1510

[9] Generalized linear precoder and decoder design for MIMO channels using the weighted MMSE criterion [J].

Sampath, H ;

Stoica, P ;

Paulraj, A .

IEEE TRANSACTIONS ON COMMUNICATIONS, 2001, 49 (12) :2198-2206

[10] The world of polymers:: exploring new horizons with a new aims and scope [J].

Schué, F .

POLYMER INTERNATIONAL, 2004, 53 (01) :1-3

← 1 2 →