Adaptive caching with heterogeneous devices in mobile peer to peer network

Authors:
Fan Ye;Qing Li;EnHong Chen
Affiliations:
University of Science & Technology of China, Hefei, China and City University of Hong Kong, Hong Kong, China;City University of Hong Kong, Hong Kong, China and CityU-USTC Advanced Research Institute, Suzhou, China;University of Science & Technology of China, Hefei, China and CityU-USTC Advanced Research Institute, Suzhou, China, Hefei, China.
Venue:
Proceedings of the 2008 ACM symposium on Applied computing
Year:
2008

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Abstract

In the (upcoming) 3G age, many applications such as multimedia streaming, file sharing and so on will be widely used in the wireless environments. In such a mobile environment, users may carry heterogeneous mobile devices with different transmission ranges, latency, and even cache sizes. These devices not only can get services from a Mobile Support Station (MSS), but also they can form/generate a mobile peer-to-peer (P2P) network to provide services to each other. For such a mobile P2P network, an effective cache framework that can handle heterogeneous devices is required. In this paper, we propose a flexible cache scheme which is adaptive to the actual device condition and that of its neighbors. Our scheme encourages the "strong" peers to keep hot data and do service, and meanwhile to protect and best utilize the "weak" nodes with their limited cache space. Simulation and mathematic analysis results show the effectiveness of our scheme.