Topology Control in Multi Channel Multi-Radio Networks

Recently, improving energy efficiency and increasing network capacity have been attractive in multi-radio multi-channel networks. In these networks, several methods are introduced to improve the network capacity. In this paper, we propose a method considering both interference and energy consumption in communication links. This method consists of two phases: in the first one, an optimized energy consumption sub graph, Gabriel graph, is constructed on the nodes of the network graph. Then, in the second phase, to increase the network capacity, available channels are allocated efficiently. Furthermore, in this paper, the channel conditions are considered on the communication links. With this assumption, the proposed scheme provides a more transmission rate in the links with the better conditions and consequently more probability reuse of these links. Generally speaking, introduced topology constructs a graph with the minimum energy consumption and minimum interference.