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Exploiting mutual coupling by means of analog-digital zero forcing

Li, A; Masouros, C; (2017) Exploiting mutual coupling by means of analog-digital zero forcing. In: Bayoumi, MA, (ed.) 2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) [Proceedings]. (pp. pp. 3564-3568). IEEE Green open access

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Abstract

In this paper, the mutual coupling effect among antenna elements for the downlink multiuser multiple-input-single-output (MU-MISO) is studied. Different from conventional knowledge that the mutual coupling effect usually degrades the system performance, a joint analog-digital precoding scheme is proposed so that the system can benefit from this effect. Linear precoding approaches are applied in the digital domain, while in the analog domain, convex optimization is applied to determine the value of each load impedance such that the resulting noise amplification factor for the precoder is minimized. Simulation results show that the proposed analog-digital precoding schemes can achieve a significant performance gain over conventional precoding approaches with fixed mutual coupling.

Type: Proceedings paper
Title: Exploiting mutual coupling by means of analog-digital zero forcing
Event: 2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 5-9 March 2017, New Orleans, USA
Location: New Orleans, LA, USA
Dates: 05 March 2017 - 09 March 2017
ISBN-13: 9781509041176
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/ICASSP.2017.7952820
Publisher version: https://doi.org/10.1109/ICASSP.2017.7952820
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: MIMO, precoding, mutual coupling, analogdigital processing, optimization
UCL classification: 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/1563821
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