Preprint
Sep 2026
Shaping Delay-Doppler Ambiguity in Practical OFDM-ISAC
Orthogonal frequency-division multiplexing (OFDM) is a key waveform for integrated sensing and communication (ISAC). Existing OFDM ambiguity analyses, however, typically assume fully occupied data-only waveforms, whereas practical frames contain direct-current and edge-guard nulls, fixed pilots, and random payload symb...
Cheng Luo, Lu-Ping Xiang, Kun Yang
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