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In order to realize hierarchical routings that should be executed in large-scaled mobile ad hoc networks that vary their topologies considerably with time, we have developed autonomous clustering with high scalability and adaptability. In autonomous clustering, an entire network is divided into disjoint subnetworks (called clusters), and they are maintained by periodically sending messages within...
Topology control in ad-hoc networks tries to lower node energy consumption by reducing transmission power and by confining interference, collisions and consequently retransmissions. In other words, we are given the communication graph G obtained when all the nodes transmit at maximum power, the goal is to identify a sparse subgraph G (also called power spanner) of G such that only energy-efficient...
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