Energy efficient peer-to-peer file sharing

被引：7
|
作者：
Hlavacs, Helmut [1 ]
Weidlich, Roman [1 ]
Treutner, Thomas [1 ]
机构：
[1] Univ Vienna, Dept Distributed & Multimedia Syst, A-1080 Vienna, Austria
来源：
JOURNAL OF SUPERCOMPUTING | 2012年 / 62卷 / 03期
关键词：
BitTorrent; File sharing; Energy efficiency; Seeding time; Proxy; Task virtualization;
D O I：
10.1007/s11227-011-0602-8
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper reveals the power saving potential of P2P file sharing in two cases; popular and unpopular files. For popular files, we derive, with regard to BitTorrent, an expression for the optimal time seeders should support leechers. For unpopular files, we extend an existing model by taking into account leechers' power consumption dependent on the load. Leechers are assumed to build a temporary cluster within the P2P-overlay. We determine the required number of active leechers to cope with a given load and compare results from an analytical model to simulation. We demonstrate that it is possible to reach almost optimal energy efficiency for the download scenario by comparing the local case without cooperation with the distributed case where leechers cooperate.
引用
收藏
页码：1167 / 1188
页数：22
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