A New Quasi-orthogonal Space-time Block Code

被引：0
|
作者：
Xiao Liping [1 ]
Xu Chengqian [1 ]
Zhang Weifeng [1 ]
机构：
[1] YanShan Univ, Coll Informat Sci & Engn, Qinhuangdao 066004, Hebei, Peoples R China
来源：
2006 FIRST INTERNATIONAL CONFERENCE ON COMMUNICATIONS AND NETWORKING IN CHINA | 2006年
关键词：
Low-complexity maximum-likelyhood (LC-ML); Orthogonal space-time block code; Quasi-orthogonal space-time block code; Wireless communication;
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
A full rate space-time block code (STBC) for four transmit antennas based on quasi-orthogonal design is proposed in this paper. The 4x4 transmission matrix of the presented quasi-orthogonal space-time block code (QOSTBC) is constructed based on Alamouti's scheme. The original maximum-likelihood (ML) decoding scheme and the low-complexity ML (LC-ML) decoding scheme for the new code are introduced. Then the decoding speed of them is compared. The simulation results show: the performance of the new code is better than that of orthogonal space-time block codes (OSTBC) at low SNR; it also exceeds the bit error rate (BER) of OSTBC at high SNR if the new code uses constellation rotation; the LC-ML decoding scheme is faster than the original ML decoding scheme.
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页数：5
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