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- W2167142221 abstract "Code-division multiplex orthogonal frequency-division multiplex (CDM-OFDM) has received considerable attention due to its superior resilience against subcarrier fading in comparison with conventional OFDM. More recently, group-orthogonal CDM-OFDM (GO-CDM-OFDM) has been considered as a suitable method to extract additional frequency diversity of the wireless channel by splitting the available subcarriers into (orthogonal) groups and applying optimum detection at the receiver on a per-group basis. One critical parameter of this scheme is the group size as it can effectively act like a complexity-performance trading knob. In this work an adaptive technique to dynamically adjust the group size as a function of the instantaneous operating scenario is presented. It is shown that this adaptivity can bring along important reductions in complexity without compromising error performance." @default.
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- W2167142221 date "2009-10-01" @default.
- W2167142221 modified "2023-09-30" @default.
- W2167142221 title "OFDM With Adaptive Frequency Diversity" @default.
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- W2167142221 doi "https://doi.org/10.1109/lsp.2009.2025837" @default.
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