@inproceedings{355a024a6d3e41d79485905ee91a5928,
title = "Online Distributed Edge Caching for Mobile Data Offloading in 5G Networks",
abstract = "Edge caching is an effective approach to improve the quality of service for mobile users and therefore a critical component for 5G networks. Despite the importance, it is not clear how to determine which contents to cache and how to the serve requests in 5G networks to minimize the total operational cost in a distributed and online manner, especially when some mobile users can be served by multiple small base stations. In this paper, we formulate an optimization problem to jointly decide the caching policy and the routing decision. There are two challenges: the need for distributed control and the lack of future information. We therefore develop an online distributed algorithm with provable performance guarantees in terms of convergence and competitive ratio compared to the offline optimal solution. Numerical simulations based on real-world traces highlight the significant performance improvement compared to existing baselines.",
keywords = "5G networks, distributed algorithm, edge caching, online optimization",
author = "Yiming Zeng and Yaodong Huang and Zhenhua Liu and Yuanyuan Yang",
note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 28th IEEE/ACM International Symposium on Quality of Service, IWQoS 2020 ; Conference date: 15-06-2020 Through 17-06-2020",
year = "2020",
month = jun,
doi = "10.1109/IWQoS49365.2020.9213007",
language = "English",
series = "2020 IEEE/ACM 28th International Symposium on Quality of Service, IWQoS 2020",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2020 IEEE/ACM 28th International Symposium on Quality of Service, IWQoS 2020",
}