Cognitive radio as common information exchange reference model for interoperability between hetrogeneous networks

This paper presents the application of cognitive radio (CR) in interoperability between two heterogeneous networks. We have used CR as a common information exchange platform to ensure interoperability between IEEE 802.11b (Wi-Fi) and IEEE 802.16a (Wi-Max) networks in the same shared frequency band. CR is used to link these two networks which are considered out of reach from each other. We compare the performance of complete network in different scenarios simulated with varying number of constant bit rate (CBR) applications. Different matrices for comparison are throughput, end to end delay and jitter. Further to this, equal traffic is generated to compare the throughput of Wi-Max and Wi-Fi subnets.