Abstract: Based on the analysis of the most important challenges in wireless Mesh networks, a link state reasoning based routing protocol was presented which is originated from optimizes link state routing protocol (LR-OLSR) with cross-layer design theory. hhe I_R-OI_SR protocol greatly optimizes routing performance by introducing the reasoning method to value the link quality depending on information such as the node load, the packet delivery ratio, and link avail bility. The proposed protocol makes use of link duality as the routing metric during route selection, thus it can achieve optimal routing and load balancing in wireless Mesh networks. The simulation results show that the proposed routing protocol improves the packet delivery ratio, reduces the end-to-end delay, and achieves load balance in the route selection process.

Key words: Link state awareness, Wireless Mesh networks,Routing protocol,hablcdriven routing