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Radar and Communication Coexistence Enabled by Interference Exploitation

Liu, F; Masouros, C; Li, A; Ratnarajah, T; (2017) Radar and Communication Coexistence Enabled by Interference Exploitation. In: GLOBECOM 2017 - 2017 IEEE Global Communications Conference. IEEE Green open access

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Abstract

In this paper, we propose a novel approach for the spectrum sharing between Multi-Input-Multi-Output (MIMO) radar and downlink multi-user Multi-Input- Single-Output (MU-MISO) communication system. To obtain a power-efficient beamforming at the base station (BS), we utilize the constructive multi- user interference (MUI) as a source of green signal power. The proposed beamforming design mainly focuses on two optimization problems, i.e., transmit power minimization for BS and interference minimization for radar, subject to given performance requirements of the two systems. We further consider the impact of the proposed methods on radar, where the detection probability for MIMO radar in the presence of the interference from BS is analytically derived, and important trade-offs are revealed. Numerical results show that the proposed approach outperforms the conventional beamforming designs by achieving a significant performance gain under the discussed coexistence scenario.

Type: Proceedings paper
Title: Radar and Communication Coexistence Enabled by Interference Exploitation
Event: IEEE Global Communications Conference (GLOBECOM), 4-8 December 2017, Singapore
Location: YourSingapore, Singapore, SINGAPORE
Dates: 04 December 2017 - 08 December 2017
ISBN-13: 9781509050208
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/GLOCOM.2017.8254100
Publisher version: https://doi.org/10.1109/GLOCOM.2017.8254100
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: Interference, Array signal processing, Radar antennas, Minimization, Radar detection, Signal to noise ratio
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/10059021
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