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Two mechanisms to improve the performance of wireless ad hoc networks in multi-hop scenarios wherein the Distributed Queuing MAC protocol for Mobile Ad Hoc Networks (DQMAN) is executed are proposed and evaluated in this paper. DQMAN organizes the network into dynamic clusters forming spontaneous master-slave architectures to manage the radio resources. In multihop settings its performance is hampered by intercluster interference (interference caused between adjacent clusters) and the presence of isolated nodes that cannot get associated to any cluster. The Three Hop Master miniSlot (3HMS) and the Active Listening (AL) mechanisms are presented in this paper to cope with these problems.
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