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.
Authors with CRIS profile
Elena Boshkovska
Lehrstuhl für Digitale Übertragung
Robert Schober
Lehrstuhl für Digitale Übertragung
Involved external institutions
Australia (AU)How to cite
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://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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