Mobility-aware caching for content-centric wireless networks: Modeling and methodology

Rui Wang, Xi Peng, Jun Zhang, Khaled Letaief

Research output: Contribution to journalArticle

102 Citations (Scopus)


As mobile services are shifting from connection- centric communications to content-centric communications, content-centric wireless networking emerges as a promising paradigm to evolve the current network architecture. Caching popular content at the wireless edge, including base stations and user terminals, provides an effective approach to alleviate the heavy burden on backhaul links, as well as lower delays and deployment costs. In contrast to wired networks, a unique characteristic of content-centric wireless networks (CCWNs) is the mobility of mobile users. While it has rarely been considered by existing works on caching design, user mobility contains various helpful side information that can be exploited to improve caching efficiency at both BSS and user terminals. In this article, we present a general framework for mobility-aware caching in CCWNs. Key properties of user mobility patterns that are useful for content caching are first identified, and then different design methodologies for mobility-aware caching are proposed. Moreover, two design examples are provided to illustrate the proposed framework in detail, and interesting future research directions are identified.

Original languageEnglish
Article number7537180
Pages (from-to)77-83
Number of pages7
JournalIEEE Communications Magazine
Issue number8
Publication statusPublished - 1 Aug 2016
Externally publishedYes


ASJC Scopus subject areas

  • Computer Science Applications
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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