A Cross-Layer Design Based on Link Quality for Cognitive Wireless Mesh Networks

To resolve channel interference and “Deafness” problem in cognitive wireless mesh network, a new Cross-layer Design based on Link Quality for Cognitive Wireless Mesh Networks is proposed. When the node chooses the channel, it is not only in accordance with the rank of channels, but also based on link quality. In this way, cross-layer technology can be effectively achieved, and network performance can be improved. Simulation results show that compared to the link-based channel allocation algorithm, capacity and interference based channel allocation algorithm, and channel diversity based channel allocation algorithm, the new CLDLQ algorithm has an obvious advantage in the performance of delay and throughput.