Noncoherent receivers for differential space-time modulation
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چکیده
In this paper, noncoherent receivers for differential space–time modulation (DSTM) are investigated. It is shown that the performance of the previously proposed conventional differential detection (DD) receiver is satisfactory only for very slow flat fading channels. However, conventional DD suffers from a considerable loss in performance even for moderately fast fading. In order to overcome this problem, multiple–symbol detection (MSD) and low–complexity decision–feedback differential detection (DF–DD) receivers are derived.
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تاریخ انتشار 2001