This paper proposes the technique of routing and resource allocation in cognitive radio based wireless mesh networks. In real existing protocol, the end to end delay is obtained during the data transmission in network. In case of end to end delay, the malicious node can be appeared during transmission. To avoid the malicious node, cognitive mesh network is used to decrease the end to end delay. By using the DSR protocol in existing system, the performance degrades rapidly and provides the low traffic load with high delay. So we implemented the Destination-Sequenced Distance-Vector routing to minimize the aggregate end-to-end delay of all the network flows. The proposed routing can accommodate double the traffic load and achieve half the delay compared to the disjoint methods. The simulated results illustrate the reduction in packet loss, Malicious node, energy delay, transmission delay during the transmission of data information in the Cognitive Mesh Network. © Research India Publications.