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Optimized Precoders for Massive MIMO OFDM Dual Radar-Communication Systems

Temiz, Murat; Alsusa, Emad; Baidas, Mohammed W; (2021) Optimized Precoders for Massive MIMO OFDM Dual Radar-Communication Systems. IEEE Transactions on Wireless Communications , 69 (7) pp. 4781-4794. 10.1109/TCOMM.2021.3068485. Green open access

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Abstract

This paper considers the optimization of a dual-functional radar and communication (RadCom) system with the objective is to maximize its sum-rate (SR) and energy-efficiency (EE) while satisfying certain radar target detection and data rate per user requirements. To this end, novel RadCom precoder schemes that can exploit downlink radar interference are devised for massive multiple-input-multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems. First, the communication capacity and radar detection performance metrics of these schemes are analytically evaluated. Then, using the derived results, optimum beam power allocation schemes are deduced to maximize SR and EE with modest computational complexity. The validity of the analytical results is confirmed via matching computer simulations. It is also shown that, compared to benchmark techniques, the devised precoders can achieve substantial improvements in terms of both SR and EE.

Type: Article
Title: Optimized Precoders for Massive MIMO OFDM Dual Radar-Communication Systems
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/TCOMM.2021.3068485
Publisher version: https://doi.org/10.1109/TCOMM.2021.3068485
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: COEXISTENCE, Energy-Efficiency, Engineering, Engineering, Electrical & Electronic, IMPACT, massive MIMO, OFDM radar, power allocation, radar and communication, Science & Technology, Technology, Telecommunications, WAVE-FORM DESIGN
UCL classification: UCL
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/10166321
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