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Peer-to-peer file transfer in wireless mesh networks

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2 Author(s)
ElRakabawy, S.M. ; Dept. of Comput. Sci., Leipzig Univ. ; Lindemann, C.

In this paper, we consider the peer-to-peer transfer of popular files between devices in a wireless mesh network. We address the problem that occurs when multiple nodes try to access the same file simultaneously, resulting in increased contention on the shared wireless channel. To counteract this problem, we propose a cooperative file transfer protocol which splits a file into fixed-sized pieces and allows simultaneous downloads of such pieces from multiple peers. Opposed to previous approaches, the proposed protocol selects the potential download peers such that the corresponding download paths possess minimum interference among each other. In a performance study where we compare our approach with other download schemes proposed in the literature, we show that our cooperative protocol roughly halves the time required for downloading a file

Published in:

Wireless on Demand Network Systems and Services, 2007. WONS '07. Fourth Annual Conference on

Date of Conference:

24-26 Jan. 2007