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An AFDM-Based Integrated Sensing and Communications

  • Beihang University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper considers an affine frequency division multiplexing (AFDM)-based integrated sensing and communications (ISAC) system, where the AFDM waveform is used to simultaneously carry communications information and sense targets. To realize AFDM-based sensing functionality, two parameter estimation methods are designed to process echoes in the time domain and the discrete affine Fourier transform (DAFT) domain, respectively. It allows us to decouple delay and Doppler shift in the fast time axis and can maintain good sensing performance even in large Doppler shift scenarios. Numerical results verify the effectiveness of our proposed AFDM-based system in high mobility scenarios.

Original languageEnglish
Title of host publication2022 International Symposium on Wireless Communication Systems, ISWCS 2022
PublisherVDE Verlag GmbH
ISBN (Electronic)9781665455442
DOIs
StatePublished - 2022
Event2022 International Symposium on Wireless Communication Systems, ISWCS 2022 - Hangzhou, China
Duration: 19 Oct 202222 Oct 2022

Publication series

NameProceedings of the International Symposium on Wireless Communication Systems
Volume2022-October
ISSN (Print)2154-0217
ISSN (Electronic)2154-0225

Conference

Conference2022 International Symposium on Wireless Communication Systems, ISWCS 2022
Country/TerritoryChina
CityHangzhou
Period19/10/2222/10/22

Keywords

  • Integrated sensing and communications
  • affine frequency division multiplexing
  • discrete affine Fourier transform
  • integrated waveform

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