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The Distributed Coordination Function (DCF) in the IEEE 802.11 protocol is a random access scheme based on the carrier sense multiple access with collision avoidance (CSMA/CA). In recent years, there have been numerous research on the performance analysis and model of DCF under the assumption that the transmission queue is always nonempty (i.e. saturation state). In this paper, we propose a dynamic...
The original topology-transparent TDMA protocol does not perform effectively because of the collisions. In this paper a dynamic topology-transparent TDMA protocol with a novel collision-free algorithm for mobile ad hoc networks is presented. This method avoids collisions utilized the active information of two-hop nodes and dynamically adapts time-slot assignment to the changes of topology and load...
In this paper, we revisit the problem of multicast tree construction in overlay peer-to-peer networks. We present an iterative online multicast tree construction algorithm for multi-session multicasting of elastic content. Our framework allows receivers to request multiple sessions from possibly different servers. Each receiver expresses a quality-of-service requirement using a utility function. We...
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