A Dynamic Edge Caching Framework for Mobile 5G Networks

Mobile edge caching has emerged as a new paradigm to provide computing, networking resources, and storage for a variety of mobile applications. That helps achieve low latency, high reliability, and improve efficiency in handling a very large number of smart devices and emerging services (e.g., IoT,...

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Bibliographic Details
Published in:IEEE wireless communications 2018-10, Vol.25 (5), p.95-103
Main Authors: Hoang, Dinh Thai, Niyato, Dusit, Nguyen, Diep N., Dutkiewicz, Eryk, Wang, Ping, Han, Zhu
Format: Article
Language:English
Subjects:
5G mobile communication
Applications programs
Bandwidth
Caching
Computation
Edge computing
Internet
Mobile computing
Mobile handsets
Servers
Virtual networks
Virtual reality
Wireless networks
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Summary:Mobile edge caching has emerged as a new paradigm to provide computing, networking resources, and storage for a variety of mobile applications. That helps achieve low latency, high reliability, and improve efficiency in handling a very large number of smart devices and emerging services (e.g., IoT, industry automation, virtual reality) in mobile 5G networks. Nonetheless, the development of mobile edge caching is challenged by the decentralized nature of edge nodes, their small coverage, limited computing, and storage resources. In this article, we first give an overview of mobile edge caching in 5G networks. After that, its key challenges and current approaches are discussed. We then propose a novel caching framework. Our framework allows an edge node to authorize the legitimate users and dynamically predicts and updates their content demands using the matrix factorization technique. Based on the prediction, the edge node can adopt advanced optimization methods to determine optimal content to store so as to maximize its revenue and minimize the average delay of its mobile users. Through numerical results, we demonstrate that our proposed framework provides not only an effective caching approach, but also an efficient economic solution for the mobile service provider.
ISSN:1536-1284
1558-0687
DOI:10.1109/MWC.2018.1700360