Transmitter-side wireless information- and power-transfer in massive MIMO systems

Nasir, A.A., Tuan, H.D., Duong, T.Q. and Hanzo, L. (2020) Transmitter-side wireless information- and power-transfer in massive MIMO systems. IEEE Transactions on Vehicular Technology, 69 (2), 2322-2326, [8933141]. (doi:10.1109/TVT.2019.2959932).

Record type: Article

Abstract

Both time-switching (TS) and power splitting has been used at the receiver for wireless information and power transfer in the downlink of massive multiple-input-multiple-output systems. By contrast, this correspondence adopts the transmit-TS approach, where the energy and information are transferred over different fractions of a time slot. Our goal is to jointly optimize the transmit-TS factor and power allocation coefficients during energy and information transfer for maximizing the users’ minimum throughput subject to transmit power and minimum harvested energy constraints. This nonconvex problem is solved by our path following algorithm. Our simulation results demonstrate the benefits of the proposed transmit-TS algorithm, which easily doubles the throughput compared to that of the existing techniques.

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Accepted/In Press date: 12 December 2019

e-pub ahead of print date: 16 December 2019

Published date: February 2020

Additional Information: Funding Information: Manuscript received September 15, 2019; revised November 14, 2019; accepted December 11, 2019. Date of publication December 16, 2019; date of current version February 12, 2020. The work of A. A. Nasir was supported by the KFUPM Research Project SB171005. The work of H. D. Tuan was supported by the Australian Research Council’s Discovery Projects under Project DP190102501. The work of T. Q. Duong was supported by the Royal Academy of Engineering (RAEng) under the RAEng Research Fellowships schemer under Grant RF1415\14\22. The work of L. Hanzo was supported in part by the Engineering and Physical Sciences Research Council projects EP/Noo4558/1, EP/PO34284/1, and COALESCE, in part by the Royal Society’s Global Challenges Research Fund Grant, and in part by the European Research Council’s Advanced Fellow Grant QuantCom. The review of this article was coordinated by Dr. R. D. Souza. (Corresponding author: Lajos Hanzo.) A. A. Nasir is with the Department of Electrical Engineering, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia (e-mail: anasir@kfupm.edu.sa). Publisher Copyright: © 1967-2012 IEEE.

Keywords: Beamforming, massive MIMO, wireless power transfer

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