Zhang, Y;
Xu, T;
Masouros, C;
Darwazeh, I;
(2024)
A Non-Orthogonal Waveform Enabled Spectrally Efficient Over-the-Air ISAC Transmission.
In:
2024 IEEE 25th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC).
(pp. pp. 586-590).
IEEE: Lucca, Italy.
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Abstract
This paper presents an experimental investigation into the feasibility of non-orthogonal waveform design for integrated sensing and communications (ISAC) systems. The integration of sensing and communication functionalities in wireless systems holds promise for enhancing spectral efficiency and enabling diverse applications. We propose a novel approach utilizing non-orthogonal waveforms, termed spectrally efficient frequency division multiplexing (SEFDM), to facilitate sensing and communication tasks. The system model encompasses multi-user MIMO-SEFDM communication and digital MIMO radar sensing, considering both omnidirectional and directional beamforming scenarios. We formulate an optimization problem to balance performance between communication and sensing functions. Moreover, communication performance trade-offs between orthogonal and non-orthogonal signal waveforms are studied. Through practical experiments conducted on an established over-the-air experimental platform, we evaluate the performance of the proposed ISAC waveform design and showcase the performance benefits of non-orthogonal waveform design in improving spectral efficiency, sensing beampattern accuracy, and communication quality.
| Type: | Proceedings paper |
|---|---|
| Title: | A Non-Orthogonal Waveform Enabled Spectrally Efficient Over-the-Air ISAC Transmission |
| Event: | 2024 IEEE 25th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) |
| Dates: | 10 Sep 2024 - 13 Sep 2024 |
| ISBN-13: | 979-8-3503-9318-7 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/SPAWC60668.2024.10694199 |
| Publisher version: | http://dx.doi.org/10.1109/spawc60668.2024.10694199 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | ISAC, waveform, SEFDM, MIMO, spectral efficiency, proof-of-concept, experiment |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10200909 |
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