Routing Protocol Systems For Wireless Mesh Network

With the development of wireless technology, Wireless Mesh Network (WMN) hasreceived more and more attention as a new solution for Internet access. WMN inheritsthe advantages of WLAN and mobile Ad-hoc network that presents in scalability,self-healing and self-configuration. And WMN could be applied in various scenarios.Routing protocol becomes to a hot issue which is also one of major subjects in WMN.But the results of test-bed of Wireless Mesh Network showed that the existing routingprotocols are not suited well for WMN. Therefore, it is very important to study therouting protocol systems of WMN. We should take the full features of WMN intoconsideration, and design the new routing protocols for WMN.On the basis of state-of-the-art researches, routing protocol systems for WMN arestudied through theoretical analysis and simulations. The main contributions of thisdissertation are as follows:1. The architectures, characteristics and applications of wireless mesh networkwere studied. And the high light routing protocols of WMN were emphaticallydiscussed.2. The over loaded problem in mesh portal node of WMN was studied. In case ofHWMP and RDR, a great deal of operations was deployed in MPP that makes the MPPto become a bottle-neck of the network. To solve this defect, a new proactive routingprotocol OTR was proposed.3. Based on the discussion of existing routing metric, we studied the factors whichaffect the performance of routing metric. And an Interference Sensing Based RoutingMetric (ISB) was proposed.4. Under the discussion, the game theory model of competition between meshrouters was proposed. After that, we lay out a routing protocol (GFR) studied withfairness problem for WMN. GFR let the calculation of route could be distributed onevery branches of the tree topology, which greatly reduced the load of the root.Furthermore, each router has the same opportunities of Internet access no matter howfar from the gateway.