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Robust Hybrid Precoding for Interference Exploitation in Massive Mimo Systems

Hegde, G; Masouros, C; Pesavento, M; (2020) Robust Hybrid Precoding for Interference Exploitation in Massive Mimo Systems. In: Proceedings of ICASSP 2020 - 2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). (pp. pp. 5290-5294). IEEE: Barcelona, Spain. Green open access

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Abstract

In this paper, we consider a multiuser massive MIMO system with hybrid analog-digital precoding architecture. The phase shifters in the hybrid precoding architecture are assumed to be imperfect, where the true values of both phase and magnitude of the phase shifters are different from their nominal values. For a given analog precoding matrix, we develop an iterative algorithm to compute robust digital precoders based on the interference exploitation approach to eliminate any potential symbol errors due to the phase shifter impairments. Numerical experiments demonstrate the performance of the proposed algorithm and show its advantage over a conventional robust precoding technique.

Type: Proceedings paper
Title: Robust Hybrid Precoding for Interference Exploitation in Massive Mimo Systems
Event: ICASSP 2020 - 2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
ISBN-13: 9781509066315
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/ICASSP40776.2020.9052973
Publisher version: https://doi.org/10.1109/ICASSP40776.2020.9052973
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: Constructive interference, Robust precoding, Hybrid precoding, Massive MIMO
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/10113973
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