Research Article
Cooperative Caching and Delivery Algorithm Based on Content Access Patterns at Network Edge
@INPROCEEDINGS{10.1007/978-3-030-17513-9_8, author={Lintao Yang and Yanqiu Chen and Luqi Li and Hao Jiang}, title={Cooperative Caching and Delivery Algorithm Based on Content Access Patterns at Network Edge}, proceedings={5G for Future Wireless Networks. Second EAI International Conference, 5GWN 2019, Changsha, China, February 23-24, 2019, Proceedings}, proceedings_a={5GWN}, year={2019}, month={4}, keywords={Cooperative caching Mobile Internet Multi-aspect data and analysis Network edge Tensor decomposition}, doi={10.1007/978-3-030-17513-9_8} }- Lintao Yang
Yanqiu Chen
Luqi Li
Hao Jiang
Year: 2019
Cooperative Caching and Delivery Algorithm Based on Content Access Patterns at Network Edge
5GWN
Springer
DOI: 10.1007/978-3-030-17513-9_8
Abstract
Mobile network performance and user Quality of Experience (QoE) will be negatively affected by the explosion of mobile data traffic. Recent research has focused on local caching at the wireless edge, as motivated by the 80/20 rule regarding content popularity. By caching popular contents at base stations (BSs), backhaul congestion and content access latency can be dramatically reduced. To address the limited storage size of BSs, an algorithm optimizing cooperative caching has been highlighted. Contents requested by mobile users that cannot be obtained locally could be transferred by cooperative BSs. In this paper, we propose a cooperative caching algorithm based on BS content access patterns. We use tensor decompositions with distance constraint to analyze interaction between users, contents and base stations. Thus, BSs with small geographical distances and similar content access patterns constitute a cooperative caching domain. Simulation results based on a real dataset of usage detail records (UDRs) demonstrate the superior performance and promising practical gains in caching of the proposed caching method compared to user clustering and BS clustering.
