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RF Torrent:A Peer to Peer Live Distribution Algorithm


Affiliations
1 Department of Computer Science and Engineering, R.M.D. Engineering College, Chennai-601 206, India
     

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Peer-to-peer file-sharing applications suffer from a fundamental problem of unfairness. Free-riders cause slower download times for others by contributing little or no upload bandwidth while consuming much download bandwidth. Previous attempts to address this fair bandwidth allocation problem suffer from slow peer discovery, inaccurate predictions of neighboring peers bandwidth allocations, underutilization of bandwidth, and complex parameter tuning. We present RF Torrent, a new deficit-based distributed algorithm that accurately rewards peers in accordance with their contribution. A RF Torrent peer simply uploads the next data block to a peer to whom it owes the most data as measured by a deficit counter. RF Torrent is resilient to exploitation by free-riders and strategic peers, is simple to implement, requires no bandwidth over allocation, no prediction of peers rates, no centralized control, and no parameter tuning.

Keywords

RF Torrent, Peer to Peer File Sharing, Quality of Service, Free Riders.
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  • RF Torrent:A Peer to Peer Live Distribution Algorithm

Abstract Views: 246  |  PDF Views: 3

Authors

S. Nagarajan
Department of Computer Science and Engineering, R.M.D. Engineering College, Chennai-601 206, India
G. Amudha
Department of Computer Science and Engineering, R.M.D. Engineering College, Chennai-601 206, India

Abstract


Peer-to-peer file-sharing applications suffer from a fundamental problem of unfairness. Free-riders cause slower download times for others by contributing little or no upload bandwidth while consuming much download bandwidth. Previous attempts to address this fair bandwidth allocation problem suffer from slow peer discovery, inaccurate predictions of neighboring peers bandwidth allocations, underutilization of bandwidth, and complex parameter tuning. We present RF Torrent, a new deficit-based distributed algorithm that accurately rewards peers in accordance with their contribution. A RF Torrent peer simply uploads the next data block to a peer to whom it owes the most data as measured by a deficit counter. RF Torrent is resilient to exploitation by free-riders and strategic peers, is simple to implement, requires no bandwidth over allocation, no prediction of peers rates, no centralized control, and no parameter tuning.

Keywords


RF Torrent, Peer to Peer File Sharing, Quality of Service, Free Riders.



DOI: https://doi.org/10.36039/ciitaas%2F5%2F3%2F2013%2F106836.118-121