APP demodulator for turbo coded differential unitary space-time modulation

被引：0
|
作者：
Vanichchanunt, P [1 ]
Sangwongngam, P [1 ]
Nakpeerayuth, S [1 ]
Wuttisittikulkij, L [1 ]
机构：
[1] Chulalongkorn Univ, Dept Elect Engn, Bangkok, Thailand
来源：
ICC 2005: IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-5 | 2005年
关键词：
turbo codes; MSDD; space-time codes;
D O I：
暂无
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：
In this paper, an iterative multiple symbol differential detection (MSDD) for turbo coded differential unitary space-time modulation (DUSTM) is developed by using an a posteriori probability (APP) demodulator under correlated slow and fast Rayleigh flat fading channels. The metric function necessary for the detection operates based on the linear prediction. Two approaches are presented to utilize the metric. In the first approach, the BCJR algorithm is modified to deal with the increased-state trellis of the differential modulation. In the second approach, the VA is modified to find the symbol sequences associated with the survivors for the BCJR algorithm.
引用
收藏
页码：2906 / 2910
页数：5
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