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CSE PhD student Jie Dai and Prof. Bo Li received the Best Paper Award at IEEE GLOBECOM 2011 for their work "Collaborative Caching for Video Streaming among Selfish Wireless Service Providers".
"Collaborative Caching for Video Streaming among Selfish Wireless Service Providers", partly supported by Huawei, explores the benefits of collaborative caching for wireless video streaming. The popularity of video streaming services is changing the landscape of mobile wireless industry with an increasing number of content providers offering streaming content to mobile users. Caching has been commonly used by wireless service providers to facilitate content dissemination. Yet, capacity provisioning of cache servers is challenging given dynamic user demands and limited wireless bandwidth available. This brings both challenges and opportunities towards a collaborative caching paradigm among cache servers that are deployed by different wireless service providers. This work proposes a collaborative caching mechanism that aims to maximize the social welfare in the context of Vickrey-Clarke-Groves (VCG) auction, which encourages cache servers to spontaneously cooperate for trading their resources in a self-enforcing manner. Results from experiments demonstrate that significant performance improvement can be obtained with respect to video streaming quality.
IEEE GLOBECOM is the IEEE Communications Society flagship conference. It was held in Houston, Texas during 5-9 December this year.
Jie DAI at the Award Presentation Ceremony of the IEEE GLOBECOM 2011