Valiulahi, I;
Masouros, C;
Salem, A;
Liu, F;
(2022)
Antenna Selection for Energy-Efficient Dual-Functional Radar-Communication Systems.
IEEE Wireless Communications Letters
, 11
(4)
pp. 741-745.
10.1109/LWC.2022.3142043.
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Abstract
This article studies antenna selection for an energy-efficient millimeter-Wave (mmWave) dual-functional radar-communication (DFRC) system, communicating with multiple users while sensing a point target. To obtain a hardware efficient DFRC system, we propose an optimization problem that minimizes the Cramér-Rao bound (CRB) for tracking the target while guaranteeing the communication quality of service (QoS), and selects the best active antennas using ℓ0 norm. To address the non-convexity of the proposed problem, we relax the radar and communication constraints using semidefinite programming (SDP) and employ an ℓ1,∞ norm, which promotes group sparsity, instead of the ℓ0 norm. Numerical results show that the proposed approach obtains better performance in terms of the CRB compared to the conventional approach while reducing the number of radio frequency (RF) chains and total power consumption at the transmitter with almost the same computational complexity.
| Type: | Article |
|---|---|
| Title: | Antenna Selection for Energy-Efficient Dual-Functional Radar-Communication Systems |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/LWC.2022.3142043 |
| Publisher version: | http://doi.org/10.1109/LWC.2022.3142043 |
| 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: | Antennas, Radar, Power demand, Radio frequency, Target tracking, Receiving antennas, Radar antennas |
| UCL classification: | 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 UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10142890 |
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