Efficient channel assignment and routing in wireless mesh network

The wireless mesh network is an emerging technology that provides high quality service to end users as the “last mile” of the Internet. Multicast communication is a key technology for wireless mesh networks. Multicast provides efficient data distribution among a group of nodes. Wireless mesh networks need to maximize throughput. Heuristic Channel Assignment algorithm that is Multichannel Multicast (MCM) algorithm to improve throughput for the multichannel mesh networks is proposed. Also a new path weight which captures the available path bandwidth information is also proposed to provide efficient routing. The available path bandwidth is defined as the maximum additional rate a flow can push before saturating its path. Therefore, if the traffic rate of a new flow on a path is no greater than the available bandwidth of this path, accepting the new traffic will not violate the bandwidth guaranteed of the existing flows. The consistency property guarantees that each node makes a proper packet forwarding decision, so that a data packet does traverse over the intended path. The extensive simulation experiments also show that the proposed Heuristic Channel Assignment with Routing provides high-throughput paths.