Nowadays, with progress of technology in wireless communications and increase of wireless tools to establish communication, and for sending and receiving data files especially multimedia files, ad hoc networks have received special attention. Mobile communications are usable wherever communication infrastructure is limited or absent, or establishing an infrastructure is not affordable. According to the ever increasing usage of these networks, in this article, attempts have been made to select some routs for sending multimedia files in an ad hoc network by using fuzzy logic and paying attention to moving nodes, so that we can fulfill needs for service quality in this kind of networks.
Peer-to-peer (P2P) networks existing on a MANET are a natural evolution since both are decentralized and have dynamic topologies. As MANETs grow in use due to the increasing popularity of wireless mesh and 4G networks, it is expected that P2P applications will remain as a popular means of obtaining files. Network coding has been shown as an efficient means of sharing large Files in a P2P network. With network coding, all file blocks have the same relative importance. This paper presents an efficient content distribution scheme that uses network coding to share large files in a P2P overlay running on a MANET. Peers request file blocks from multiple server nodes and servers multicast blocks to multiple receivers, providing efficient multipoint-to-multipoint communication.Simulation results show that compared to other common download techniques, the proposed scheme performs very well, having lower download time and energy consumption. Also, more peers participate in uploading the file, resulting in greater fairness.
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