On noncoherent receivers for DSTM in spatially correlated fading |
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Authors: | Zhu C Yiu S Schober R |
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Affiliation: | Dept. of Electr. & Comput. Eng., Univ. of British Columbia, Vancouver, BC, Canada; |
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Abstract: | 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. |
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