Study of High-Speed NGN Resource Control Schemes

Abstract

Next generation network (NGN) is a packet-based converged network to support session and non-session services in QoS-enabled broadband transport network. QoS based resource control must be defined to support differentiated services for various network users in NGN. This paper defined parallel control schemes for NGN resource control interfaces to minimize session and resource control delays. We simulated the existing and proposed NGN control schemes to measure and analyze control delays and completion ratios. By arrival rate of 120 in two-phase resource control, we checked out that completion ratios of sequential and parallel schemes achieved 100%, and the control delay of parallel scheme was improved by about 21.5% compared to that of sequential scheme.

High-Speed Control Mechanisms in NGN Rs and Rw Interfaces

“…Figure 2 shows two-phase resource control scheme with parallel interworking mechanism [7]. In this parallel mechanism, SCF simultaneously transfers RI-auth-req message to RACF and INVITE message to next SCF when it receives INVITE message from CPE (Customer Premises Equipment).…”