关键词: 无线Mesh网, 优化链路状态路由, 路由协议, 表驱动路由, 链路认知

Abstract: Based on the analysis of the most important challenges in Wireless Mesh Network (WMN), a routing protocol named LR-OLSR was proposed based on the Optimized Link State Routing (OLSR) protocol with cross-layer design theory. The LR-OLSR protocol greatly optimized 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 the link availability. The proposed protocol made use of link quality as the routing metric during route selection, and thus could achieve optimal routing and load balancing in WMN. The simulation results on LR-OLSR, OLSR and its typical improvement named P-OLSR and SC-OLSR 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.