An Improved Model for Next Generation Networks with Guaranteed End-to-End Quality of Service

The quality of service (QoS) in the Next Generation Networks (NGN) has been of a particular interest to researchers, system designers, standardization organizations and various industries affected by these networks. In this paper, we propose and outline a control and signalling model which guarantees an end-to-end QoS for multi-service traffics in the NGN networks based on IP/MPLS transport. This work is based on previous works of various standardization bodies such as PacketCable, 3GPP, ETSI, MSF, and ITU-T. The proposed model treats the RACM as a basis component for a large scale QoS guarantee architecture. A key aspect of this model lies in its capacity to integrate the MPLS traffics engineering which offers a scalability and resilience to the transport network and guarantees the requested QoS.