Analyzing Gateway Association in Wireless Mesh Network

Wireless Mesh Networks (WMNs) have received attention in wireless network users. Low cost, easy deploy ability, access to the Internet, are few of the several reasons for it. It is also capturing major share of attention amongst researchers as it is in its evolutionary stage. The performance of WMN is still under observation. In this paper, we have tried to analyze the performance of wireless mesh network where each individual cluster of client nodes is associated with cluster head which serves as default Gateway for Internet access. The performance is evaluated on the basis of throughput with varying transmission rate. Also end to end to delay with different transmission rates is analyzed. Performance of a cluster with one Gateway is compared with four clusters scenario. Number of nodes in the cluster is kept same as in the first case. Network Simulator NS-2 is used for evaluation. The results show that Multiple Gateway scenarios provide better results as compared to Single Gateway as the density of nodes goes on reducing per cluster.