Improving the Download Time of BitTorrent-Like Systems

The content distribution techniques have recently started embracing peer-to-peer system as an alternative to the client-server architecture, such as BitTorrent system. BitTorrent system offers a scale mechanism for distributing a large volume of data to a set of peers over the Internet, but it is not designed for minimizing the time taken for all peers to receive the file. As a result, the peers of BitTorrent system may suffer a long download time, specifically the narrow-band peers. In this paper, in order to reduce the download time of BitTorrent, we propose a weighty piece selection strategy instead of the local rarest first strategy in BitTorrent. The proposed strategy is based on the greedy concept that a peer assigns each missing piece a weight according to total number of neighbor’s downloaded pieces. The peer selects the missing piece with the highest priority for next download. This strategy can speed up the cooperation between heterogeneous peers while making the BitTor...

• Type: Conference
• Year: 2007
• Where: ICC
• Authors: Chi-Jen Wu, Cheng-Ying Li, Jan-Ming Ho
• Keywords: BitTorrent System, Communications, Download Time, ICC 2007, Piece Selection Strategy