Space-time block codes: A capacity perspective

被引：269

作者：

Sandhu, S ^{[1
]}

Paulraj, A ^{[1
]}

机构：

[1] Stanford Univ, Informat Syst Lab, Stanford, CA 94305 USA

来源：

IEEE COMMUNICATIONS LETTERS | 2000年 / 4卷 / 12期

关键词：

block codes; diversity methods; fading channels; MIMO systems; modulation coding;

D O I：

10.1109/4234.898716

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

Space-time block codes are a remarkable modulation scheme discovered recently for the multiple antenna wireless channel. They have an elegant mathematical solution for providing full diversity over the coherent, flat-fading channel, In addition, they require extremely simple encoding add decoding. Although these codes provide full diversity at low computational costs, we show that they incur a loss in capacity because they convert the matrix channel into a scalar AWGN channel whose capacity is smaller than the true channel capacity. In this letter the loss in capacity is quantified as a function of channel rank, code rate, and number of receive antennas.

引用

页码：384 / 386

页数：3

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