Routing Analysis in Wireless Mesh Network with Bandwidth Allocation
D. Jasmine David · 2013
Wireless Mesh Network (WMN) is an important network to provide Internet access to remote areas and wireless connections in a metropolitan scale. As part of the Internet, WMN has to support diversified multimedia applications to all its users. It is essential to provide efficient Quality-of-Service (QoS) support to the networks. Searching the path with the maximum available bandwidth is one of the fundamental issues for supporting QoS in the WMN. The available path bandwidth is defined as the maximum additional rate a flow can push through saturating its path. Therefore, if the rate of traffic in a new flow on a path is no greater than the available bandwidth of this path, accepting the new traffic will not exit the bandwidth guaranteed of the existing flows. Due to interference among channel links, the bandwidth is a bottleneck metric in wired networks, is neither a defect nor additive in wireless networks. In this paper a computing path weight which captures the available path bandwidth information is proposed. This paper also show that the efficient routing protocol based on the new path weight which provides the consistency and loop-freeness to the network. The consistency property guarantees that each node makes an appropriate packet forwarding decision, so that a data packet does traverse through the exact path. The simulation experiments also show that the proposed path weight gives high-throughput paths.