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Energy efficient and distributed resource allocation for wireless powered OFDMA multi-cell networks

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Chang, Z., Wang, Z., Guo, X., Han, Z., & Ristaniemi, T. (2017). Energy efficient and distributed resource allocation for wireless powered OFDMA multi-cell networks. In WiOpt 2017 : 15th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks. IEEE. https://doi.org/10.23919/WIOPT.2017.7959941
Authors
Chang, Zheng |
Wang, Zhongyu |
Guo, Xijuan |
Han, Zhu |
Ristaniemi, Tapani
Date
2017
Discipline
TietotekniikkaMathematical Information Technology
Copyright
© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

 
In this paper, we investigate the energy efficient resource allocation problem for the wireless powered OFDMA multi-cell networks. In the considered system, the users who have data to transmit in the uplink can only be empowered by the wireless power obtained from multiple base stations (BSs) with a large scale of multiple antennas in the downlink. A time division protocol is considered to divide the time of wireless power transfer (WPT) in the downlink and wireless information transfer (WIT) in the uplink into separate time slot. With the objective to improve the energy efficiency (EE) of the system, we propose the antenna selection, time allocation, subcarrier and power allocation schemes. Due to the non-convexity of the formulated optimization problem, we first apply the nonlinear programming scheme to convert it to a convex optimization problem and then address it through an efficient alternating direction method of multipliers based distributed resource allocation algorithm. Extensive simulations are conducted to show the effectiveness of proposed schemes. ...
Publisher
IEEE
Parent publication ISBN
978-3-901882-90-6
Conference
International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks
Is part of publication
WiOpt 2017 : 15th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks
Keywords
ADMM antenna selection time allocation wireless power transfer resursointi langattomat verkot energiansiirto energiatehokkuus
DOI
https://doi.org/10.23919/WIOPT.2017.7959941
URI

http://urn.fi/URN:NBN:fi:jyu-201711214311

Publication in research information system

https://converis.jyu.fi/converis/portal/detail/Publication/27171389

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  • Informaatioteknologian tiedekunta [1898]

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