The call admission problem for a wireless packet switched network supporting homogeneous applications-such as a cellular voice network-is an old one and has been extensively investigated in the past. The focus of the present article is to investigate the call admission region for a TDMA (wireless) system supporting heterogeneous real-time variable bit rate (VBR) applications with distinct quali...

This paper examines the state-of-the-art in the development of resource and admission control architectures for Next Generation Networks (NGN). The approach taken is, initially, to present some basic concepts for understanding and discussing quality of service in the context of NGN. Following this, we consider current research activities in international standardization organizations and then a...

In Code Division Multiple Access (CDMA) mobile cellular network, quality of service (QoS) provisioning of diverse user applications is a great challenge due to scarcity of wireless radio resources and the different QoS requirements demanded by the users. An effective call admission control (CAC) algorithm is needed for optimization of existing resources and better admission control to improve t...