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On wireless power transfer in two-tier massive MIMO hetnets: Energy and rate analysis

Zhu, Y; Wang, L; Wong, KK; Jin, S; (2016) On wireless power transfer in two-tier massive MIMO hetnets: Energy and rate analysis. In: Proceedings of the 2016 24th European Signal Processing Conference (EUSIPCO). (pp. pp. 828-832). IEEE: Budapest, Hungary. Green open access

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Abstract

In this paper, we investigate the potential application of wireless power transfer (WPT) in heterogeneous networks (HetNets) with massive multiple-input multiple-output (MIMO) antennas. Users first harvest energy from the downlink WPT, and then use the harvested energy for uplink transmission. We adopt the downlink received signal power (DRSP) based user association to maximize the harvested energy, and address the impact of massive MIMO on the user association. By using new statistical properties, we then obtain the exact expressions for the average harvested energy and the average uplink achievable rate of a user in such networks. Numerical results corroborate our analysis and demonstrate that compared to deploying more small cells, the use of a large number of antennas is more appealing since it brings in significant increase in the harvested energy of the HetNets. In addition, results illustrate that serving more users in the massive MIMO aided macrocells decreases the harvested energy and the uplink achievable rate of the HetNets.

Type: Proceedings paper
Title: On wireless power transfer in two-tier massive MIMO hetnets: Energy and rate analysis
Event: 2016 24th European Signal Processing Conference (EUSIPCO)
ISBN-13: 9780992862657
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/EUSIPCO.2016.7760364
Publisher version: http://dx.doi.org/10.1109/EUSIPCO.2016.7760364
Language: English
Additional information: Copyright © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Keywords: MIMO, Uplink, Downlink, Interference, Fading channels, Macrocell networks, Energy harvesting
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/1534154
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