High-rate space-time block codes with fast maximum-likelihood decoding

被引:1
|
作者
Paredes, Javier M. [1 ]
Gershman, Alex B. [1 ]
机构
[1] Tech Univ Darmstadt, Commun Syst Grp, D-64283 Darmstadt, Germany
关键词
space-time coding; fast maximum-likelihood decoding;
D O I
10.1109/ICASSP.2008.4518127
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
Orthogonal space-time block codes (OSTBCs) represent an attractive choice of space-time coding scheme because of their simple maximum-likelihood (ML) decoding and full diversity property. However, the code orthogonality property limits their achievable transmission rate. In this paper, new high-rate block codes are proposed that are referred to as orthogonal structure based STBCs. To obtain these codes, the proposed design adds extra-symbols to the OSTBC matrix using different reasonable strategies. Because of the internal OSTBC structure of the proposed designs, the ML decoder can be implemented in a fast way. Simulations validate an improved performance-to-complexity tradeoff of the proposed codes as compared to several other popular choices of space-time codes.
引用
收藏
页码:2385 / 2388
页数:4
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