Decoding space-time codes with BLAST architectures

被引：44

作者：

Biglieri, E ^{[1
]}

Taricco, G

Tulino, A

机构：

[1] Politecn Torino, Dipartimento Elettron, Turin, Italy

[2] Univ Sannio, Benevento, Italy

来源：

IEEE TRANSACTIONS ON SIGNAL PROCESSING | 2002年 / 50卷 / 10期

关键词：

antenna arrays; MIMO systems; space-time codes;

D O I：

10.1109/TSP.2002.803342

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：

We introduce a coding/decoding scheme matched to a "vertical" BLAST architecture; a code has its words evenly split among the transmit antennas. The subcodes so transmitted by each antenna are decoded in sequence to cancel the spatial interference while a final decoding step is performed on the whole code. We also examine the behavior of zero-forcing (ZF) and minimum-mean-square error (MMSE) BLAST by comparing their error probabilities with those resulting from optimum, i.e., maximum-likelihood (ML), processing. Since, with vertical BLAST, ordering of the columns of the channel-gain matrix is crucial, we also study the performance of algorithms intended to find an optimal (or mildly suboptimal) ordering.

引用

页码：2547 / 2552

页数：6

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