A peer-to-peer file sharing system for wireless ad-hoc networks

Abstract—File sharing in wireless ad-hoc networks in a peer-to-peer manner imposes many challenges that make conventional peer-to-peer systems operating on wire-line networks inapplicable for this case. 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 neighborhood. In this paper we propose a system that solves peer-to-peer file-sharing problem for wireless ad-hoc networks. Our system works according to peer-to-peer principles, without requiring a central server, and distributes information regarding the location of shared files among members of the network. By means of a “hashline ” and forming a tree-structure based on the topology of the network, the system is able to answer location queries, and also discover and maintain routing information that is used to transfer files from a source-peer to another peer. I