Proportional Fairness in ALOHA Networks With RF Energy Harvesting

Hadzi-Velkov Z, Pejoski S, Zlatanov N, Schober R (2018)

Publication Language: English

Publication Type: Journal article

Publication year: 2018

Journal

IEEE Wireless Communications Letters IEEE Communications Society

Book Volume: 8

Pages Range: 277 - 280

Journal Issue: 1

DOI: 10.1109/LWC.2018.2870158

Abstract

In this letter, we study wireless powered communication networks that employ the slotted ALOHA protocol, which is the preferred protocol for simple and uncoordinated networks. In the energy harvesting (EH) phase, the base station broadcasts radio frequency energy to the EH users (EHUs). The EHUs harvest the broadcasted energy and use it to transmit information back to the base station by contending for access to the uplink channel in the random access (RA) phase. In order to ensure fairness among the users, we propose a proportionally fair resource allocation scheme that exploits the RA nature of slotted ALOHA. Specifically, assuming statistical channel state information, we determine the optimal transmit power at the base station, the optimal durations of the EH and RA phases, the channel access probability, and the rate of each EHU.

Authors with CRIS profile

Robert Schober Lehrstuhl für Digitale Übertragung (IDC)

Involved external institutions

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

How to cite

APA:

Hadzi-Velkov, Z., Pejoski, S., Zlatanov, N., & Schober, R. (2018). Proportional Fairness in ALOHA Networks With RF Energy Harvesting. IEEE Wireless Communications Letters, 8(1), 277 - 280. https://doi.org/10.1109/LWC.2018.2870158

MLA:

Hadzi-Velkov, Zoran, et al. "Proportional Fairness in ALOHA Networks With RF Energy Harvesting." IEEE Wireless Communications Letters 8.1 (2018): 277 - 280.

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