Practical Non-Linear Energy Harvesting Model and Resource Allocation for SWIPT Systems

Boshkovska E, Wing Kwan Ng D, Zlatanov N, Schober R (2015)


Publication Language: English

Publication Type: Journal article

Publication year: 2015

Journal

Book Volume: 19

Pages Range: 2082 - 2085

Journal Issue: 12

DOI: 10.1109/LCOMM.2015.2478460

Abstract

In this letter, we propose a practical non-linear energy harvesting model and design a resource allocation algorithm for simultaneous wireless information and power transfer (SWIPT) systems. The algorithm design is formulated as a non-convex optimization problem for the maximization of the total harvested power at energy harvesting receivers subject to minimum required signal-to-interference-plus-noise ratios (SINRs) at multiple information receivers. We transform the considered non-convex objective function from sum-of-ratios form into an equivalent objective function in subtractive form, which enables the derivation of an efficient iterative resource allocation algorithm. In each iteration, a rank-constrained semidefinite program (SDP) is solved optimally by SDP relaxation. Numerical results unveil a substantial performance gain that can be achieved if the resource allocation design is based on the proposed non-linear energy harvesting model instead of the traditional linear model.

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APA:

Boshkovska, E., Wing Kwan Ng, D., Zlatanov, N., & Schober, R. (2015). Practical Non-Linear Energy Harvesting Model and Resource Allocation for SWIPT Systems. IEEE Communications Letters, 19(12), 2082 - 2085. https://dx.doi.org/10.1109/LCOMM.2015.2478460

MLA:

Boshkovska, Elena, et al. "Practical Non-Linear Energy Harvesting Model and Resource Allocation for SWIPT Systems." IEEE Communications Letters 19.12 (2015): 2082 - 2085.

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