Common Call Admission Control in Heterogeneous Wireless Network

Abstract

today's world it has become a challenge to provide cellular connectivity as an -anywhere and anyhow" basis. Due to the vast increment of number of cellular. one users, multiple radio access technologies (RATs) are coming under same Every RAT is allocated with specific radio frequency bands in one core radio network The purpose of our proposal is to use these RATs in a heterogeneous network priority basis. This means whenever connectivity is requested by a moving user, he is provided with free channels of the available RATs through sharing radio resources. Thorough this procedure, maximum quality of service (QoS) can be provided to the users call blocking probability can be reduced. In our project we have used Common radio Resource Management (CRRM) algorithms. In our proposed model CRRM has used for call admission control and vertical hand over functions. Our proposed model is compared with Luo's Joint Scheduling Model. In our proposed model although GPRS and WLAN have been considered, but our model can be employed for heterogeneous networks consisting of any wireless communication systems