Linear precoding for space-time coded systems with known fading correlations

被引：167

作者：

Sampath, H ^{[1
]}

Paulraj, A

机构：

[1] Iospan Wireless Inc, Palo Alto, CA 94301 USA

[2] Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA

来源：

IEEE COMMUNICATIONS LETTERS | 2002年 / 6卷 / 06期

关键词：

fading correlations; linear precoding; MIMO; space-time coding;

D O I：

10.1109/LCOMM.2002.1010867

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

We design an optimal linear precoder for a space-time coded system assuming knowledge of only the transmit antenna fading correlations. Assuming a flat fading channel and a maximum-likelihood receiver, we show that the linear precoder transmits power on the eigenmodes of the transmit antenna correlation matrix. The power allocation on the eigenmodes is a form of waterpouring policy. Simulation results are presented to show performance improvement on a space-time coded system.

引用

页码：239 / 241

页数：3

共 9 条

[1]

BOLCSKEI H, 2000, 34 AS C SIGN SYST CO, V1, P687

[2]

BRUNNER C, 2000, EUR WIR 2000 DRESD G

[3]

KATZ M, 2000, P 51 IEEE VEH TECHN, V2, P1230

[4] EFFECT OF FADING CORRELATION ON ADAPTIVE ARRAYS IN DIGITAL MOBILE RADIO [J].