Mobility-Aware Caching at the Wireless Edge

Speaker:Dr. Jun Zhang (HKUST)

Time and Date: 14:00-15:00, Nov. 21, 2016

Place: Room 521, Physics Building, Handan Campus

 

 

Abstract

We are witnessing a paradigm shift in wireless networking, which is from “connection-centric” communications to “content-centric” communications. Deploying storage units at the base stations and caching popular content at the wireless edge is recently proposed as an effective approach to catch this trend, which has been regarded as a key technology for the upcoming 5G networks. While caches have been widely deployed in the Internet, such as via Content Delivery Networks (CDNs), wireless caching bears its own uniqueness and brings additional design challenges. In contrast to wired networks, a unique characteristic of wireless caching is the mobility of end users. While existing works has rarely considered it, user mobility contains various helpful side information that can be exploited to improve the caching efficiency. In this talk, a general framework on mobility-aware caching will be firstly presented. A detailed example on caching placement at mobile devices will then be provided to illustrate the proposed design methodology. Simulation results will be provided to demonstrate the effectiveness of the proposed methods.

 

 

Biography

We are witnessing a paradigm shift in wireless networking, which is from “connection-centric” communications to “content-centric” communications. Deploying storage units at the base stations and caching popular content at the wireless edge is recently proposed as an effective approach to catch this trend, which has been regarded as a key technology for the upcoming 5G networks. While caches have been widely deployed in the Internet, such as via Content Delivery Networks (CDNs), wireless caching bears its own uniqueness and brings additional design challenges. In contrast to wired networks, a unique characteristic of wireless caching is the mobility of end users. While existing works has rarely considered it, user mobility contains various helpful side information that can be exploited to improve the caching efficiency. In this talk, a general framework on mobility-aware caching will be firstly presented. A detailed example on caching placement at mobile devices will then be provided to illustrate the proposed design methodology. Simulation results will be provided to demonstrate the effectiveness of the proposed methods.