Cluster Based Hybrid Routing to Improve Qos in Wireless Mesh Network

Maximizing the network throughput in a multichannel multiradio wireless mesh network various efforts have been committed.The recent solution are based on either static (or) dynamic approaches.In this approaches MMAC (MULTICHANNEL MAC) protocol is used which is optimized only for network throughput. A hybrid multichannel multiradio wireless mesh network is developed for channel allocation and routing.Here each mesh node has both static and dynamic interfaces. ADCA (ADAPTIVE DYNAMIC CHANNEL ALLOCATTION ) protocol is used in hybrid multichannel WMN,here ADCA optimizes both throughput and delay in the channel assignment, and also it results in reducing packet delay without degrading the network throughput.To balance the channel usage in the network ICAR (INTERFERENCE AND CONGESTION AWARE ROUTING PROTOCOL) is added. Simulation is done by NS2 (network simulator -2). The hybrid architecture achieves lower delay than the static and dynamic approaches and also it improves the QOS(quality of service) in the network architecture.Additionally we also compare with clustering approach is to improve the network throughput and QOS than the hybrid architecture.