An efficient digital contents sharing with transmission records in peer-to-peer networks

For unstructured peer-to-peer (P2P) networks, we previously proposed an efficient digital content sharing method, in which content searching queries are guided properly to an appropriate peer which is likely to store a replica of target content item, by using query transmission records (TRs) maintained in each peer. In this paper, we improve the conventional method and make it achieve more efficiency especially in the situation where some content items which are likely to be highly interesting to some users are released at short intervals.