A Cognitive Wireless Mesh Network Routing Algorithm Based on Fuzzy Reasoning
Zhihua Bao · Telecommunication Engineering · 2009
Nodes in Cognitive Wireless Mesh Network(CogWMN) can access spectrum holes dynamically. However,frequent changes of spectrum holes result in breaking the routes and degrading network performance.In this paper,a CogWMN routing algorithm based on fuzzy reasoning is proposed.The algorithm adopts reasoning mechanism of fuzzy Petri net to compute the reliabilities of available routes.Finally,the highest reliability of routes and channels are selected.The simulation results show that reasoning mechanism routing algorithm may enhance the reliabilities of selected routes. The proposed algorithm can not only decrease the number of broken routes but also improve the network throughput in CogWMN.