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Lookup NU author(s): Dr Tongyang XuORCiD
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
© 2020 IEEE.The integration of sensing and communication (ISAC) functionalities have recently gained significant research interest as a hardware-, power-, spectrum- and cost- efficient solution. This experimental work implements a dual-functional sensing and communication framework where a single radiation waveform, either omnidirectional or directional, can realize both sensing and communication functions. We design an orthogonal frequency division multiplexing (OFDM) based multi-user multiple input multiple output (MIMO) software-defined radio (SDR) testbed to validate the dual-functional model. We carry out over-the-air experiments to investigate the optimal trade-off factor to balance the performance for both functions. On the communication side, we obtain bit error rate (BER) results from the testbed to show the communication performance using the dual-functional waveform. On the sensing performance, we measure the output beampatterns of our transmission to examine their similarity to simulation based beampatterns. We also implement a sensing experiment to realize activity detection functions. Our experiment reveals that the dual-functional approach can achieve comparable BER performance with pure communication-based solutions while achieving fine sensing beampatterns and realistic sensing functionality simultaneously.
Author(s): Xu T, Liu F, Masouros C, Darwazeh I
Publication type: Article
Publication status: Published
Journal: IEEE Open Journal of the Communications Society
Year: 2022
Volume: 3
Pages: 1643-1655
Online publication date: 26/09/2022
Acceptance date: 02/04/2018
Date deposited: 26/06/2023
ISSN (electronic): 2644-125X
Publisher: Institute of Electrical and Electronics Engineers Inc.
URL: https://doi.org/10.1109/OJCOMS.2022.3209641
DOI: 10.1109/OJCOMS.2022.3209641
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