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

doi:10.1109/JSAC.2019.2916280

	Economically Optimal MS Association for Multimedia Content Delivery in Cache-Enabled Heterogeneous Cloud Radio Access Networks
	Liu, Ling 1,2; Zhou, Yiqing 1,2; Yuan, Jinhong 1,2,3; Zhuang, Weihua 4; Wang, Ying 5
	2019-07-01
发表期刊	IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS
ISSN	0733-8716
卷号	37 期号:7 页码:1584-1593
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.
关键词	Economic MS association cache quality of service
DOI	10.1109/JSAC.2019.2916280
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[61571425]
WOS研究方向	Engineering ; Telecommunications
WOS类目	Engineering, Electrical & Electronic ; Telecommunications
WOS记录号	WOS:000472196500009
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
引用统计	被引频次：85[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/4186
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.Chinese Acad Sci, Beijing Key Lab Mobile Comp & Pervas Device, Inst Comp Technol, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ New South Wales, Sch Elect Engn & Telecommun, Sydney, NSW 2052, Australia 4.Univ Waterloo, Dept Elect & Comp Engn, Waterloo, ON N2L 3G1, Canada 5.Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China
推荐引用方式 GB/T 7714	Liu, Ling,Zhou, Yiqing,Yuan, Jinhong,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	Liu, Ling,Zhou, Yiqing,Yuan, Jinhong,Zhuang, Weihua,&Wang, Ying.(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	Liu, Ling,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.