A peer-to-peer file search and download protocol for wireless ad-hoc networks

Authors:
Hasan Sözer;Metin Tekkalmaz;Ibrahim Korpeoglu
Affiliations:
Faculty of Electrical Engineering, Mathematics and Informatics, University of Twente, Enschede, The Netherlands;Department of Computer Engineering, Bilkent University, Ankara, Turkey;Department of Computer Engineering, Bilkent University, Ankara, Turkey
Venue:
Computer Communications
Year:
2009

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Abstract

Deployment of traditional peer-to-peer file sharing systems on a wireless ad-hoc network introduces several challenges. Information and workload distribution as well as routing are major problems for members of a wireless ad-hoc network, which are only aware of their immediate neighborhood. In this paper, we propose a file sharing system that is able to answer location queries, and also discover and maintain the routing information that is used to transfer files from a source peer to another peer. We present a cross-layer design, where the lookup and routing functionality are unified. The system works according to peer-to-peer principles, distributes the location information of the shared files among the members of the network. The paper includes a sample scenario to make the operations of the system clearer. The performance of the system is evaluated using simulation results and analysis is provided for comparing our approach with a flooding-based, unstructured approach.