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User-centric content sharing via cache-enabled device-to-device communication

文献类型：期刊论文

作者Sun, Sheng1,2; Liu, Min1; Jiao, Zhenzhen1,2; Pang, Xiao1,2; Chen, Shuang1,2
刊名JOURNAL OF NETWORK AND COMPUTER APPLICATIONS
出版日期2018-08-01
卷号115页码:103-115
ISSN号1084-8045
关键词Cache-enabled device-to-device communication Content sharing User characteristics Content popularity
DOI10.1016/j.jnca.2018.04.017
英文摘要Cache-enabled device-to-device (D2D) communication has emerged as a promising paradigm for caching popular contents at user devices and using D2D communication among adjacent users to relieve cellular traffic overload. To maximize traffic offloading, optimal content-selection for caching and helper-receiver matching are two key concerns. In this paper, we deal with the two key issues by leveraging user characteristics, which are crucial to D2D content sharing but often omitted by existing work in this field. We first propose a comprehensive model that profiles user characteristics including user preference, user activity degree, and user relationship. To provide an accurate estimation of user relationship, a new metric named expected correlation coefficient (ECC) is further proposed, which can reveal the potential offloading opportunities behind the contacts between users. We then design a novel user-centric caching policy that integrates the above-mentioned models into content caching policy to optimize the caching efficiency. Furthermore, we propose an online learning algorithm by leveraging the Combinatorial Multi-Armed Bandits (CMAB) method to achieve efficient helper-receiver matching among users. Experiments based on real-world traces and content requesting records were conducted. The results demonstrate that when compared with existing algorithms, our proposed algorithm improves the offloading ratio by nearly 10% and the system utility approximately by 20%.
资助项目National Natural Science Foundation of China[61472404] ; National Natural Science Foundation of China[61472402] ; National Natural Science Foundation of China[61501125] ; National Natural Science Foundation of China[61502457]
WOS研究方向Computer Science
语种英语
出版者ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
WOS记录号WOS:000435622800009
源URL[http://119.78.100.204/handle/2XEOYT63/5156]  
专题中国科学院计算技术研究所期刊论文_英文
通讯作者Liu, Min
作者单位1.Chinese Acad Sci, Inst Comp Technol, State Key Lab Comp Architecture, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Comp & Control Engn, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Sun, Sheng,Liu, Min,Jiao, Zhenzhen,et al. User-centric content sharing via cache-enabled device-to-device communication[J]. JOURNAL OF NETWORK AND COMPUTER APPLICATIONS,2018,115:103-115.
APA Sun, Sheng,Liu, Min,Jiao, Zhenzhen,Pang, Xiao,&Chen, Shuang.(2018).User-centric content sharing via cache-enabled device-to-device communication.JOURNAL OF NETWORK AND COMPUTER APPLICATIONS,115,103-115.
MLA Sun, Sheng,et al."User-centric content sharing via cache-enabled device-to-device communication".JOURNAL OF NETWORK AND COMPUTER APPLICATIONS 115(2018):103-115.

入库方式： OAI收割

来源：计算技术研究所

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