Efficient Version Management for Content Sharing Using File Splitting and Differences in Hybrid Peer-to-Peer Network

摘要

We proposed an efficient content sharing strategy using file splitting and difference between versions in hybrid Peer-to-Peer (P2P) networks in the past. In this strategy, when a user requests a content item that is updated and has some versions, the user can get it from the network by retrieving the other version of the content replica and the difference from the requested version. This way of content sharing can be expected to accomplish effective and flexible operation. However, when many peers are concentrated within a certain range in the network, there may be a peer in which any replica is not placed due to content control procedure, and storage may not always be used effectively in some cases. In this research, we improve this disadvantage, and evaluate its effectiveness by assuming a more realistic network topology.