International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
It is expected that future generation of mobile communication networks are heterogeneous, where several radio access technologies will bound with each other to provide services to the users. These networks will be required to serve the different taste of users with different types of accommodation with different Quality of Services (QoSs) requirements. Due to limited number of resources in mobile cellular network provides constraint on many users which are tried to connect calls simultaneously using the similar resources. This results in degradation of quality of service.