NDLI: Resource allocation optimisation for delay-sensitive traffic in energy harvesting cloud radio access network

Content Provider	IET Digital Library
Author	Duan, Sijing Chen, Zhigang Zhang, Deyu
Abstract	In this study, the authors study a sustainable resource allocation scheme for delay-sensitive applications in an energy harvesting (EH)-cloud radio access network (CRAN). The authors formulate an optimisation problem to maximise the user equipment (UE) utility and provide them with strong delay-guarantee by jointly considering the stochastic EH process, dynamic wireless channel state. By using the Lyapunov stochastic network optimisation technique combined with virtual queues, the authors decompose the formulated problem into four sub-problems, including channel allocation, data dropping, UE request scheduling and energy management. Based on the solutions of these sub-problems, a UE optimal resource allocation algorithm is proposed to maximise UE utility while guaranteeing the delay bound and the sustainability of remote radio heads. Furthermore, this algorithm does not require any prior statistical information of the system, e.g. EH process and channel state. Both theoretical analyses and simulation results demonstrate that the proposed algorithm can achieve close-to-optimal UE utility, bounded data buffer, delay-guarantee, and required battery capacity for the operation of the CRAN.
Starting Page	641
Ending Page	648
Page Count	8
ISSN	17518628
Volume Number	12
e-ISSN	17518636
Issue Number	Issue 6, Apr (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/12/6
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2017.0487
Journal	IET Communications
Publisher Date	2018-01-11
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Channel Allocation Cloud Radio Access Network CRAN Data Dropping Delay-sensitive Application Delay-sensitive Traffic Dynamic Wireless Channel State Energy Harvesting Energy Management Lyapunov Method Lyapunov Stochastic Network Optimisation Technique Optimisation Optimisation Problem Optimisation Technique Queueing System Queueing Theory Radio Access Network Radio Access System Remote Radio Heads Resource Allocation Resource Allocation Optimisation Stochastic EH Process Sustainability Sustainable Resource Allocation Scheme Telecommunication Scheduling Telecommunication Traffic UE Optimal Resource Allocation Algorithm UE Request Scheduling User Equipment Virtual Queues Wireless Channel
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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