Istituto di Informatica e Telematica     
Anastasi G., Conti M., Giannetti I., Passarella A. Design and Evaluation of a BitTorrent Proxy for Energy Saving. In: ISCC 2009 - 14th IEEE Symposium on Computers and Communications (Sousse, Tunisia, 5-8 July 2009). Proceedings, pp. 116 - 121. IEEE Press, 2009.
Recent studies indicate that the Internet-related energy consumption represents a significant, and increasing, part of the overall energy consumption of our society. The largest contribution to this consumption is due to Internet edge devices. Typically, users leave their PCs continuously on for satisfying the connectivity requirements of file sharing P2P applications, like BitTorrent. In this paper we propose a novel proxy-based BitTorrent architecture. BitTorrent users can delegate the download operations to the proxy and then power off, while the proxy downloads the requested files. We implemented our solution and validated it in a realistic testbed. Experimental results show that, with respect to a legacy approach, our solution is very effective in reducing the energy consumption (up to 95%) without introducing any QoS degradation.
URL: http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=5179146
DOI: 10.1109/ISCC.2009.5202284
Subject Peer-to-peer computing
Quality of service
BitTorrent proxy
Internet-related energy consumption
P2P application
Energy saving
File sharing

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