On noncoherent receivers for DSTM in spatially correlated fading
On noncoherent receivers for DSTM in spatially correlated fading
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DOI：
10.1109/tcomm.2009.10.0800122
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发表时间：
2009-10
影响因子：
8.3
通讯作者：
C. Zhu;S. Yiu;R. Schober
中科院分区：
文献类型：
--
作者：
C. Zhu;S. Yiu;R. Schober
在这封信中，我们得到了一个多符号差分检测（MSDD）和一个新的MSDD为基础的决策反馈差分检测（MS-DFDD）接收机的差分空时调制传输空间相关的多输入多输出衰落信道。我们表明，MS-DFDD优于先前提出的DFDD计划，是基于标量和矢量预测（SP-DFDD和VP-DFDD）。此外，我们证明了在高信噪比（SNR）VP-DFDD是等效的SP-DFDD，从而未能适当地利用空间衰落相关性。
In this letter, we derive a multiple-symbol differential detection (MSDD) and a novel MSDD-based decision-feedback differential detection (MS-DFDD) receiver for differential space-time modulation transmitted over spatially correlated multiple-input multiple-output fading channels. We show that MS-DFDD outperforms previously proposed DFDD schemes that are based on scalar and vector prediction (SP-DFDD and VP-DFDD). In addition, we prove that at high signal-to-noise ratio (SNR) VP-DFDD is equivalent to SP-DFDD and thus fails to properly exploit the spatial fading correlations.