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Toward Dual-functional Radar-Communication Systems: Optimal Waveform Design

Liu, F; Zhou, L; Masouros, C; Li, A; Luo, W; Petropulu, A; (2018) Toward Dual-functional Radar-Communication Systems: Optimal Waveform Design. IEEE Transactions on Signal Processing , 66 (16) pp. 4264-4279. 10.1109/TSP.2018.2847648. Green open access

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Abstract

We focus on a dual-functional multi-input-multi-output (MIMO) radar-communication (RadCom) system, where a single transmitter communicates with downlink cellular users and detects radar targets simultaneously. Several design criteria are considered for minimizing the downlink multi-user interference. First, we consider both the omnidirectional and directional beampattern design problems, where the closed-form globally optimal solutions are obtained. Based on these waveforms, we further consider weighted optimizations to enable a flexible trade-off between radar and communications performance and introduce low-complexity algorithms. Moreover, to address the more practical constant modulus waveform design problem, we propose a branch-and-bound algorithm that obtains a globally optimal solution and derive its worst-case complexity as a function of the maximum iteration number. Finally, we assess the effectiveness of the proposed waveform design approaches by numerical results.

Type: Article
Title: Toward Dual-functional Radar-Communication Systems: Optimal Waveform Design
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/TSP.2018.2847648
Publisher version: https://doi.org/10.1109/TSP.2018.2847648
Language: English
Additional information: This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see http://creativecommons.org/licenses/by/3.0/.
Keywords: Spectrum sharing, radar-communication, multiuser interference, non-convex optimization, global minimizer.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10051573
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