The number of wireless users now-a-days has widely increased. These users expect great things from the constantly developing wireless networks. This rapid increase in the number of wireless subscribers increases the quality of the service anytime and anywhere. Heterogeneous communication environment is one feature among the various features of the Wireless Sensor Networks (WSNs). Heterogeneous network concept has been introduced so that the demands of the networks traffic capacity and data rate is satisfied. Heterogeneous networks consist of multiplatform networks which have various radio access technologies.