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Wireless Peer-to-Peer (P2P) file sharing is widely envisioned as one of the major applications of ad hoc networks in the near future. This trend is largely motivated by the recent advances in high-speed wireless communication technologies and high traffic demand for P2P file sharing applications. To achieve the ambitious goal of realizing a practical wireless P2P network, we need a scalable topology control protocol to solve the neighbor discovery problem and network organization problem. Indeed, we believe that the topology control mechanism should be application driven in that we should try to achieve an efficient connectivity among mobile devices in order to better serve the file sharing application. We propose a new protocol, which consists of two components, namely, Adjacency Set Construction (ASC) and Community-Based Asynchronous Wakeup (CAW). Our proposed protocol is shown to be able to enhance the fairness and provide an incentive mechanism in wireless P2P file sharing applications. It is also capable of increasing the energy efficiency.
Topology control, wireless networking, P2P systems, file sharing, energy efficiency, fairness, incentive, network protocols.

Y. Kwok and A. K. Leung, "On Localized Application-Driven Topology Control for Energy-Efficient Wireless Peer-to-Peer File Sharing," in IEEE Transactions on Mobile Computing, vol. 7, no. , pp. 66-80, 2007.
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