File Diffusion Time as Function of Peer Speed Distribution in BitTorrent-Like Networks with Super-Seed Mode

In recent years, P2P technology is of practical use. P2P file sharing software is one of the most popular applications which use the P2P technology. In Bit Torrent, peers exchange partial files called pieces to get a complete file. Super-seed Mode is one of the file distribution scheme in Bit Torrent. Super-seed Mode distributes pieces following its specifications with saving the bandwidth of the seeder node. The existing studies have considered only a part of Super-seeder specifications and an example of real peer speed. In this study, we evaluate the effect of Super-seed Mode on file diffusion time when we use all of the Super-seed Mode specifications. As a result, thanks to Fast Peer Selection which is one of the Super-seed Mode specifications, Super-seed Mode can yield high performance especially when the network has a lot of low speed peers and a few high speed peers.