Decision feedback differential detection for differential orthogonal space-time modulation with APSK signals over flat-fading channels

被引：0
|
作者：
Song, AJ [1 ]
Xia, XG [1 ]
机构：
[1] Univ Delaware, Dept Elect & Comp Engn, Newark, DE 19716 USA
来源：
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2004年 / 3卷 / 06期
基金：
美国国家科学基金会;
关键词：
amplitude/phase shift keying (APSK); decision feedback differential detection (DF-DD); differential orthogonal space-time modulation (DOSTM); orthogonal space-time codes;
D O I：
10.1109/TWC.2004.838412
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：
Differential orthogonal space-time modulation (DOSTM) with amplitude/phase shift keying (APSK) signals has been recently proposed to improve the data throughput of the DOSTM with PSK signals over quasi-static channels. In this letter, decision feedback differential detection (DF-DD) based on linear prediction is presented for the DOSTM with APSK Signals (DOSTM-APSK) over flat-fading channels. The proposed DF-DD offers better performance than the differential detection when the channel experiences fast fading. The coefficients of the linear prediction based DF-DD can be obtained by an adaptive recursive least-squares algorithm, where the channel statistics are not needed. The proposed DF-DD is also applicable to the general unitary differential space-time modulation.
引用
收藏
页码：1873 / 1878
页数：6
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