Differential super-quasi-orthogonal space-time trellis codes

被引：0
|
作者：
Wang, Jun [1 ]
Qian, Jing [1 ]
Dou, Junhui [1 ]
Liu, Shouyin [1 ]
Jang, Seong-Hyun [2 ]
Chong, Jong-Wha [2 ]
机构：
[1] Huazhong Normal Univ, Dept Elect & Inf Engn, Wuhan 430079, Peoples R China
[2] Hanyang Univ, Coll Informat & Commun, Seoul 133791, South Korea
来源：
2007 IEEE 66TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5 | 2007年
基金：
中国国家自然科学基金;
关键词：
space-time coding; differential modulation; super-quasi-orthogonal space-time trellis code; joint constellation;
D O I：
10.1109/VETECF.2007.142
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper proposes a new differential super-quasi-orthogonal space-time trellis codes (SQOSTTC) with single-symbol maximum-likelihood (ML) decoding. Firstly, a new joint constellation, which can be used to construct a unitary matrix for quasi-orthogonal space-time block code (QOSTBC), is designed. Secondly, based on the joint constellation and criterion of maximizing the coding gain distance (CGD), set-partitioning is done. Finally, we introduce the simple single-symbol maximum-likelihood (ML) decoding. Simulation results show that our differential SQOSTTC can get better performance than the differential super-orthogonal space-time trellis code (SOSTTC) 151 with four transmit antennas at the transmission rate of 1.5 bits/s/Hz and lower decoding complexity than the differential super-pseudo-orthogonal space-time trellis codes (SPOSTTC) [13] and the differential SOSTTC [14] at the transmission rate of 2 bits/s/Hz.
引用
收藏
页码：630 / +
页数：2
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