Unified AFDM waveform design framework enables ambiguity function shaping via weighted ISL minimization, PAPR control, or joint operation using reserved chirp subcarriers and a JIPD-MM solver.
Multi-functional chirp signalling for next-generation multi-carrier wireless networks: Communications, sensing and ISAC perspectives
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DAFT-s-AFDM with probabilistic constellation shaping achieves a superior controllable tradeoff between communication and sensing ambiguity function performance in ISAC systems.
Introduces low-complexity MMSE and MRC-TD detectors for ZP-AFDM exploiting lower-triangular channel structure, with theoretical BER analysis and simulations showing equivalent performance to full MMSE at reduced cost.
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A Unified Framework for Ambiguity Function Shaping and PAPR Control in AFDM Systems
Unified AFDM waveform design framework enables ambiguity function shaping via weighted ISL minimization, PAPR control, or joint operation using reserved chirp subcarriers and a JIPD-MM solver.