Economically Optimal MS Association for Multimedia Content Delivery in Cache-Enabled Heterogeneous Cloud Radio Access Networks

doi:10.1109/JSAC.2019.2916280

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	Economically Optimal MS Association for Multimedia Content Delivery in Cache-Enabled Heterogeneous Cloud Radio Access Networks
	Zhuang, Weihua 2; Yuan, Jinhong 3,4,5; Wang, Ying 1; Liu, Ling 4,5; Zhou, Yiqing 4,5
刊名	IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS
	2019-07-01
卷号	37 期号:7 页码:1584-1593
关键词	Economic MS association cache quality of service
ISSN号	0733-8716
DOI	10.1109/JSAC.2019.2916280
英文摘要	In cache-enabled heterogeneous cloud radio access networks (HC-RANs), mobile station (MS) association for multimedia content delivery should consider both the content caching location and the wireless channel quality. This paper studies economically optimal MS association to tradeoff the cache-hit ratio and the ratio of MSs with satisfied quality of service (QoS). When the associated enhanced remote radio unit (eRRU) stores the requesting content, the content can be fetched directly from the local cache. Otherwise, fronthaul has to he used to fetch the content. The use of fronthaul resource and cache is treated as costs, and payments of QoS-satisfied MSs are treated as incomes. Thus, the economic MS association is formulated as an optimization problem to maximize the system utility, i.e., total profit of the network operator, which is defined as the difference between incomes and costs. A belief propagation-based method is employed to solve the problem on a developed factor graph. Simulation results show that the proposed economically optimal MS association achieves much higher profit than the existing schemes and works well in the network with various loads. Moreover, the profit of the proposed scheme can he improved with inter-cell interference coordination. For the case with extremely skewed content popularity, the proposed scheme can avoid MS overloading at eRRUs storing most popular multimedia contents. Furthermore, it can support more MSs with satisfied QoS, which leads to a higher profit.
资助项目	National Natural Science Foundation of China[61571425]
WOS研究方向	Engineering ; Telecommunications
语种	英语
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
WOS记录号	WOS:000472196500009
内容类型	期刊论文
源URL	[http://119.78.100.204/handle/2XEOYT63/4185]
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Zhou, Yiqing
作者单位	1.Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China 2.Univ Waterloo, Dept Elect & Comp Engn, Waterloo, ON N2L 3G1, Canada 3.Univ New South Wales, Sch Elect Engn & Telecommun, Sydney, NSW 2052, Australia 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Beijing Key Lab Mobile Comp & Pervas Device, Inst Comp Technol, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhuang, Weihua,Yuan, Jinhong,Wang, Ying,et al. Economically Optimal MS Association for Multimedia Content Delivery in Cache-Enabled Heterogeneous Cloud Radio Access Networks[J]. IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS,2019,37(7):1584-1593.
APA	Zhuang, Weihua,Yuan, Jinhong,Wang, Ying,Liu, Ling,&Zhou, Yiqing.(2019).Economically Optimal MS Association for Multimedia Content Delivery in Cache-Enabled Heterogeneous Cloud Radio Access Networks.IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS,37(7),1584-1593.
MLA	Zhuang, Weihua,et al."Economically Optimal MS Association for Multimedia Content Delivery in Cache-Enabled Heterogeneous Cloud Radio Access Networks".IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS 37.7(2019):1584-1593.