Linear precoding of unitary space-time code for GLRT decoder

被引：0

作者：

Guo, Yongliang ^{[1
]}

Zhu, Shihua ^{[1
]}

Liang, Zhonghua ^{[1
]}

机构：

[1] Xian Jiaotong Univ, Dept Informat & Commun Engn, Xian, Peoples R China

来源：

IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES | 2008年 / E91A卷 / 02期

关键词：

linear precoding; pair-wise error probability; generalized likelihood ratio test decoder; unitary space-time code;

D O I：

10.1093/ietfec/e91-a.2.695

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

For unitary space-time code (USTC), the impact of spatial correlation on error performance is investigated. A tighter and simpler upper bound is derived for generalized likelihood ratio test decoder. We establish that the spatial correlation does not change the diversity gain, whereas it degrades the error performance of USTC. Motivated by the precoding of space-time block code, we designed a precoder for USTC to handle the case of the joint transmit-receive correlation. Numerical results show that the degradation in performance due to spatial correlation can be considerably compensated by the proposed algorithm.

引用

页码：695 / 699

页数：5

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