Two new AFDM schemes that add cyclic delay diversity and index modulation achieve full diversity under derived conditions and beat AFDM, CDD-AFDM, and OTFS benchmarks with a new low-complexity detector.
Cyclic delay-doppler shift: A simple transmit diversity t echnique for delay-doppler waveforms in doubly selective channels,
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Affine Frequency Division Multiplexing with Index Modulation: Full Diversity Condition, Performance Analysis, and Low-Complexity Detection
Two new AFDM schemes that add cyclic delay diversity and index modulation achieve full diversity under derived conditions and beat AFDM, CDD-AFDM, and OTFS benchmarks with a new low-complexity detector.