A Study on CAC Schemes for Homogeneous and Heterogeneous Wireless Cellular Networks

In mobile wireless cellular network call admission control (CAC) is one of the key point. During last three decades CAC in wireless cellular network has been acquiring a huge attention due to the increasing demand of wireless communication. In the first and second generation wireless systems CAC schemes are developed in the context of single service. However, in the third and higher generation wireless systems multimedia services that include voice, video and data are to be supported with different Quality of Service (QoS) forms under homogeneous and heterogeneous networks. To confront with these changes more refined CAC schemes are developed. In this paper, we provide a study on CAC schemes used in homogeneous and heterogeneous wireless mobile cellular networks.