A dynamic policy for resource management in Next Generation Networks

Quality of Service (QoS) control and resource management in Next Generation Networks (NGN) is provided by a particular architecture called RACF (Resource and Admission Control Function) which has been introduced by ITU. In this paper, we propose a dynamic and scalable policy for RACF to manage the bandwidth reservation for arriving calls. This threshold based method will decrease processing load compared to the current RACF per call resource allocation method while keeping the network utilization in a reasonable range. The basic concept lies in aggregating calls into bandwidth-provisioned trunks and admitting calls on trunks only within the limit of their bandwidth. The performance of the algorithm has been evaluated through numerical computations.