Minimising peer on-time for energy efficient peer-to-peer file distribution

Search Swinburne Research Bank

Home

List of Titles

Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/234785

Download PDF (CAIA-TR-120809A) (Adobe Acrobat PDF, -1 bytes)

Title: Minimising peer on-time for energy efficient peer-to-peer file distribution
Author(s): Sucevic, Andrew; Andrew, Lachlan L. H.; Nguyen, Thuy T. T.
Abstract: Peer to peer (P2P) techniques are an effective means of content distribution. By exploiting the upload bandwidth of peers, P2P can reduce the time required for file distribution, yet requires the peers to stay active to participate in the distribution process (for downloading, uploading or both). So far little attention has been paid to its energy consumption. This paper studies lower bounds on the possible total time that peers need to be active in order to distribute a file from a single server to a given set of peers. We show that a P2P system optimized for energy efficiency can consume half the energy of one optimized purely to minimize download time, while imposing minimal additional delay. To achieve this, peers should finish in increasing order of upload capacity, which is the reverse of what is optimal for delay. Moreover, peers should turn off as soon as they finish downloading. For networks of up to three peers, optimal strategies are derived and proven to be optimal, and larger systems are studied by simulation.
Publication type: Technical report
Research centre: Swinburne University of Technology. Faculty of Information and Communication Technologies. Centre for Advanced Internet Architectures
Source: Centre for Advanced Internet Architectures: technical reports, No. 120809A (Aug 2012)
Publication year: 2012
Keyword(s): Energy efficiency; File sharing; P2P; Peer-to-peer networks
Publisher: Centre for Advanced Internet Architectures, Swinburne University of Technology
Publisher URL: http://caia.swinburne.edu.au/reports/
Research Projects: Efficient and fair traffic control for a multi-service internet, Australian Research Council grant number DP0985322
Increasing internet energy and cost efficiency by improving higher-layer protocols, Australian Research Council grant number FT0991594
Full text