On the Effect of Proportional Fairness in Energy Transfer for Wireless Powered Communication Networks

Butt, M. M. , Mohamed, A. and Guizani, M. (2015) On the Effect of Proportional Fairness in Energy Transfer for Wireless Powered Communication Networks. In: 2015 International Wireless Communications and Mobile Computing Conference (IWCMC), Dubronvnik, Croatia, 24-28 Aug 2015, pp. 436-441. ISBN 9781479953448 (doi: 10.1109/IWCMC.2015.7289123)

Abstract

Wireless powered communication network (WPCN) is an emerging area of research where energy is transferred from the access point to the mobile terminals in the downlink and information is transferred in the uplink. In the context of WPCN, we study the effects of applying different downlink/uplink scheduling schemes on the system performance in terms of achieved system throughput and fairness. In contrast to conventional wireless networks, where data scheduling determines the system sum rate and fairness behaviour, downlink energy scheduling contributes equally in WPCNs. We propose fairness based downlink energy transfer and compare different combinations of downlink and uplink scheduling schemes. Furthermore, we propose a new metric for downlink energy transfer for the special case of finite energy buffer and evaluate its effect on the achieved system throughput and fairness. Our numerical results show that a complete throughput fairness cannot be achieved as long as fairness is not employed in energy transfer in downlink regardless of the uplink scheduling scheme.

• Item Type: Conference Proceedings
• Additional Information: This work was made possible by NPRP grant 5-782-2- 322 from the Qatar National Research Fund (a member of Qatar Foundation).
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Butt, Dr Muhammad Majid
• Authors: Butt, M. M., Mohamed, A., and Guizani, M.
• College/School: College of Science and Engineering > School of Engineering
• ISSN: 2376-6492
• ISBN: 9781479953448
• Published Online: 05 October 2015
• Copyright Holders: Copyright © 2015 IEEE
• First Published: First published in 2015 International Wireless Communications and Mobile Computing Conference (IWCMC): 436-441
• Publisher Policy: Reproduced in accordance with the publisher copyright policy