Paper Info
Title
Proactive Caching Over Cloud Radio Access Network With User Mobility and Video Segment Popularity Awared.
Abstract
Caching at the edge of wireless networks is a promising means of alleviating the heavy burden of backhaul links and reducing the latency of transmission and handover in a cloud radio access network (C-RAN). Although some effective caching schemes have been introduced to C-RAN, most of them are not designed with consideration of both user mobility and video segment popularity, which have influence on the performance of wireless caching. Therefore, this paper investigates the above-mentioned two factors for a cache-enabled C-RAN, and proposes two proactive caching strategies that are based on user mobility only, and both user mobility and video segment popularity, respectively. We design a novel controller, which is able to fully utilize the computational and storage resources, and acts the role of cache decision making for the baseband unit pool and remote radio heads. Numerical simulation results demonstrate that the proposed schemes significantly outperform traditional strategies by 20% and 16% in terms of average data transmission delay and cache hit rate, respectively.
Year
DOI
Venue
2018
10.1109/ACCESS.2018.2864877
IEEE ACCESS
Keywords
Field
DocType
User mobility,video segment popularity,proactive caching,C-RAN,caching management controller
Wireless network,Wireless,Data transmission,Backhaul (telecommunications),Computer science,Cache,Computer network,Radio access network,Handover,Distributed computing,Cloud computing
Journal
Volume
ISSN
Citations 
6
2169-3536
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Jianmei Dai151.12
Zhilong Zhang213.41
Danpu Liu35618.35