Differential transmit diversity based on quasi-orthogonal Space-Time Block Code

被引:0
|
作者
Yuen, C [1 ]
Guan, YL [1 ]
Tjhung, TT [1 ]
机构
[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 2263, Singapore
关键词
differential space-time modulation; low decoding complexity; non coherent detection; quasi-orthogonal space-time block code;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
By using joint modulation and customized constellation set, we show that Quasi-Orthogonal Space-Time Block Code (QO-STBC) can be used to form a new differential space-time modulation (DSTM) scheme to provide full transmit diversity with non-coherent detection. Our new scheme can provide higher code rate than existing DSTM schemes based on Orthogonal STBC. It also has a lower decoding complexity than the other DSTM schemes, such as those based on Group Codes, because it only requires a joint detection of two complex symbols. We derive the design criteria for the customized constellation set and use them to construct a constellation set that provides a wide range of spectral efficiency with full diversity and maximum coding gain.
引用
收藏
页码:545 / 549
页数:5
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