Multiple-Symbol Differential Sphere Detection Aided Differential Space-Time Block Codes Using QAM Constellations

被引：9
|
作者：
Xu, Chao [1 ]
Wang, Li [1 ]
Ng, Soon Xin [1 ]
Hanzo, Lajos [1 ]
机构：
[1] Univ Southampton, Sch Elect & Comp Sci, Southampton SO17 1BJ, Hants, England
来源：
IEEE SIGNAL PROCESSING LETTERS | 2011年 / 18卷 / 09期
基金：
英国工程与自然科学研究理事会;
关键词：
Differential space-time block code; multiple-symbol differential sphere detection; QAM; MODULATION;
D O I：
10.1109/LSP.2011.2160851
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 propose Multiple-Symbol Differential Detection (MSDD) aided Differential Space-Time Block Codes (DSTBCs) using QAM. Our solution eliminates the requirement of high-complexity MIMO channel estimation and its pilot overhead, while mitigating the potential performance degradation of noncoherent receivers in fast fading channels. Additionally, we develop Multiple-Symbol Differential Sphere Detection (MSDSD) for the QAM aided DSTBC schemes advocated, in order to circumvent their potentially excessive complexity.
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页码：497 / 500
页数：4
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