Cooperative Prefetching Strategies for Mobile Peers in a Broadcast Environment

Abstract

In a broadcast environment, mobile hosts can build up a mobile peer-to-peer (P2) network via short-range transmissions. Such a network can facilitate cooperation among the peers. In this paper, we study one such cooperation to reduce the access latency of queries - that of collaborative prefetching. We propose a novel scheme called the Announcement-based Cooperative Prefetching (ACP) to enable mobile peers to prefetch and share different objects. Our simulation results show that our cooperative prefetching scheme performs much better than individual prefetching and cooperative caching schemes.