Abstract: Aiming at the problem that the Gossip-based resource search scheme brings the low-efficiency resource search and high message overhead in wireless mesh networks, this paper designs a resource search scheme of P2P-VoD system over the wireless mesh networks. The system is composed of two layers: the mesh routers are grouped as a logical structure in the upper layer by making use of Chord algorithm, which is responsible for the distribution and index of media resource; the mobile devices are considered as the lower layer. In terms of the proposed resource search algorithm, the P2P-VoD system can fast discover the optimal source with needed resource for mobile nodes. Simulation results show that this approach can efficiently improve the efficiency of resource search and reduce the delay of data delivery.
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Key words: mesh networks, Chord structure, streaming media