Vu, Quang-Doanh and Tran, Le-Nam and Farrell, Ronan and Hong, Een-Kee (2015) An Efficiency Maximization Design for SWIPT. IEEE Signal Processing Letters, 22 (12). pp. 2189-2193. ISSN 1558-2361

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Abstract

A joint power splitting and beamforming design for multiuser multiple-input single-output (MISO) systems where receivers have capability of decoding information and harvesting energy simultaneously from received signals is considered. The objective is to maximize the ratio of the achieved utility to the total power consumption subject to harvested power requirements and power budget at a base station (BS). The utility function of interest combines the sum rate and the total harvested power. The design problem is nonconvex, and thus, global optimality is difficult to achieve. To solve this problem locally we first convert the problem into a more tractable form, and then propose an iterative algorithm which is guaranteed to achieve a Karush-Kuhn-Tucker solution. Numerical results are provided to demonstrate the superior performance of the proposed method.

Item Type:	Article
Keywords:	Energy harvesting; fractional problem; iterative algorithm; linear precoding; power splitting;
Academic Unit:	Faculty of Science and Engineering > Electronic Engineering Faculty of Science and Engineering > Research Institutes > Hamilton Institute
Item ID:	10286
Identification Number:	https://doi.org/10.1109/LSP.2015.2464082
Depositing User:	Ronan Farrell
Date Deposited:	05 Dec 2018 15:42
Journal or Publication Title:	IEEE Signal Processing Letters
Publisher:	IEEE
Refereed:	Yes
URI:	https://ieeexplore.ieee.org/
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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