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Energy-Efficient Boundary-enabled Scheduling in the Downlink of Multi-Carrier Multi-Access Heterogeneous Network

Yang, Ting, Heliot, Fabien and Foh, Chuan Heng (2019) Energy-Efficient Boundary-enabled Scheduling in the Downlink of Multi-Carrier Multi-Access Heterogeneous Network IEEE Transactions on Green Communications and Networking, 3 (1). pp. 79-92.

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Abstract

Future communication networks promise to provide ubiquitous high-speed services for numerous users via densely deployed small cells. They should offer good user experiences to all the users while incurring a low operational cost to the operators. User scheduling is a well-known approach to deliver good user experience, and recent works further demonstrate that it is also beneficial to improve energy efficiency (EE). However, existing EE-based scheduling schemes tend to favor users with good channel condition which lead to unfair user experiences. In this paper, we introduce a new concept of resource allocation boundary where EE and user fairness can be addressed simultaneously. We derive the boundary that partition in an effective manner the users into different groups. By applying an appropriate scheduling strategy to each group of users, not only users with poorer channel conditions can be served fairly, but the EE of the system can be further improved. We also provide a low-complexity energy-efficient power allocation algorithm that is designed to fully exploit the transmit power reduction capability of small cells. Simulation results show that our new scheduling scheme can improve the EE and user fairness when compared to existing approaches, i.e. by up to 63% and 56%, respectively.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
NameEmailORCID
Yang, Tingting.yang@surrey.ac.uk
Heliot, FabienF.Heliot@surrey.ac.uk
Foh, Chuan Hengc.foh@surrey.ac.uk
Date : March 2019
Funders : 5GIC
DOI : 10.1109/TGCN.2018.2885848
Copyright Disclaimer : © 2018 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.
Uncontrolled Keywords : Energy efficiency; User scheduling; User fairness; Small cells; Heterogeneous networks
Related URLs :
Depositing User : Clive Harris
Date Deposited : 10 Dec 2018 08:42
Last Modified : 13 Sep 2019 11:01
URI: http://epubs.surrey.ac.uk/id/eprint/850012

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