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International Journal of Communication Networks and Security

Abstract

An Adhoc networks is a self organized and distributed entity, consisting of n mobile stations (MSs) without the coordination of any centralized access point. Initialization is one of the fundamental tasks to set up an adhoc network, which involves assigning of each of the n MSs a distinct ID number from 1 to n, distributedly. In randomized initialization protocols are developed for single-hop adhoc networks under different conditions. This study investigates the performance of an analytical approximation for the throughput-delay charac-teristic of a multihop ad-hoc network employing conflict-free time division multiplex (TDM) scheduling with half-duplex transceivers. The approximation models traffic at each link as an independent M/D/1 queue and its perfor-mance is measured by comparing to simulation results for various topologies, traffic loads, and network sizes. Re-sults indicate that the approximation is most appropriate for a tandem network but is also reasonable for other two-dimensional topologies. In the twodimensional topologies, the approximation clearly improves at high traffic loads but does not exhibit distinguishable trends over the network sizes observed.

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