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arXiv · 2508.06022

Multi-Functional Chirp Signalling for Next-Generation Multi-Carrier Wireless Networks: Communications, Sensing and ISAC Perspectives

Zeping Sui·Qu Luo·Zilong Liu·Murat Temiz·Leila Musavian·Christos Masouros·Yong Liang Guan·Pei Xiao·Lajos Hanzo
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Abstract

To meet the increasingly demanding quality-of-service requirements of the next-generation multi-carrier mobile networks, it is essential to design multi-functional signalling schemes facilitating efficient, flexible, and reliable communication and sensing in complex wireless environments. As a compelling candidate, we advocate chirp signalling, beneficially amalgamating sequences (e.g., Zadoff-Chu sequences) with waveforms (e.g., chirp spread spectrum and frequency-modulated continuous wave (FMCW) radar), given their resilience against doubly selective channels. Besides chirp sequences, a wide range of chirp waveforms is considered, ranging from FMCW to affine frequency-division multiplexing (AFDM), to create a promising chirp multicarrier waveform. This study also highlights the advantages of such waveforms in supporting reliable high-mobility communications, plus integrated sensing and communications (ISAC). Finally, we outline several emerging research directions for chirp signalling designs.

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Zeping Sui, Qu Luo, Zilong Liu, Murat Temiz, Leila Musavian, Christos Masouros, Yong Liang Guan, Pei Xiao, Lajos Hanzo. 2025-08-08. Multi-Functional Chirp Signalling for Next-Generation Multi-Carrier Wireless Networks: Communications, Sensing and ISAC Perspectives. https://arxiv.org/abs/2508.06022

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