Differential Modulation Diversity for OFDM
نویسندگان
چکیده
The application of differential modulation diversity (DMD) to orthogonal frequency division multiplexing with multiple transmit and/or receive antennas is considered. Based on diagonal signals originally designed for differential space-time modulation, DMD is used to exploit both space and frequency diversity. At the receiver, low-complexity decision-feedback differential detection without channel state information is employed. Judging from analytical expressions for the pairwise error probability, the improvements and effects due to spatial and/or spectral modulation diversity are pointed out. The numerical results are in good accordance with the presented simulation results.
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