Optimal Power and Time Allocation for WPCNs With Piece-Wise Linear EH Model

Pejoski S, Hadzi-Velkov Z, Schober R (2017)

Publication Language: English

Publication Type: Journal article

Publication year: 2017

Journal

IEEE Wireless Communications Letters IEEE Communications Society

Book Volume: 7

Pages Range: 364 - 367

Journal Issue: 3

DOI: 10.1109/LWC.2017.2778146

Abstract

We propose a novel transmission protocol for harvest-then-transmit wireless powered communication networks, which takes into account the non-linearity of the energy harvesting (EH) process at the EH users and maximizes the sum rate in the uplink. We assume a piece-wise linear EH model and provide expressions for the optimal transmit power of the base station (BS), the duration of the EH phase, and the duration of the uplink information transmission phases of the users. The obtained solution provides insight regarding the significance of the non-linear EH model on the optimal resource allocation. Simulations unveil the growing impact of the saturation effect, which occurs for high received radio frequency powers, as the average and the maximum instantaneous transmit powers of the BS increase.

Authors with CRIS profile

Robert Schober Lehrstuhl für Digitale Übertragung

Involved external institutions

Saints Cyril and Methodius University of Skopje / Универзитет „Св. Кирил и Методиј“ во Скопје MK Republic of North Macedonia (MK)

How to cite

APA:

Pejoski, S., Hadzi-Velkov, Z., & Schober, R. (2017). Optimal Power and Time Allocation for WPCNs With Piece-Wise Linear EH Model. IEEE Wireless Communications Letters, 7(3), 364 - 367. https://dx.doi.org/10.1109/LWC.2017.2778146

MLA:

Pejoski, Slavche, Zoran Hadzi-Velkov, and Robert Schober. "Optimal Power and Time Allocation for WPCNs With Piece-Wise Linear EH Model." IEEE Wireless Communications Letters 7.3 (2017): 364 - 367.

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