Proportional Fairness in ALOHA Networks With RF Energy Harvesting

Journal article

Publication Details

Author(s): Hadzi-Velkov Z, Pejoski S, Zlatanov N, Schober R
Journal: IEEE Wireless Communications Letters
Publication year: 2019
Volume: 8
Journal issue: 1
Pages range: 277-280
ISSN: 2162-2337


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.

FAU Authors / FAU Editors

Schober, Robert Prof. Dr.-Ing.
Lehrstuhl für Digitale Übertragung

External institutions with authors

Monash University
Ss. Cyril and Methodius University / Универзитет „Св. Кирил и Методиј“ во Скопје

How to cite

Hadzi-Velkov, Z., Pejoski, S., Zlatanov, N., & Schober, R. (2019). Proportional Fairness in ALOHA Networks With RF Energy Harvesting. IEEE Wireless Communications Letters, 8(1), 277-280.

Hadzi-Velkov, Zoran, et al. "Proportional Fairness in ALOHA Networks With RF Energy Harvesting." IEEE Wireless Communications Letters 8.1 (2019): 277-280.


Last updated on 2019-12-03 at 04:08