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Several clustering algorithms have been proposed during the last decade within the context of ad hoc and sensor networks. They allow adding some organization to an otherwise disorganized network. Although the virtual organization attained by clustering has been typically designed within the scope of routing algorithms, clusters can also enable the use of conventional highly efficient Medium Access Control (MAC) protocols to support heavy traffic loads. In this paper, the authors adopt a novel approach to calculate the saturation throughput of a single-hop ad hoc network when using a MAC protocol embedded in a passive clustering mechanism based on the Carrier Sensing Multiple Access (CSMA) protocol.
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