Support of IP multi-services through admission control

Abstract

Today's network use the traditional architectural segmentation of the network types in core, access and user equipment domains, whereby the core is responsible for managing user requirements in terms of switching/routing, bandwidth/QoS reservations, authentication and accounting, and the access network infrastructure is typically limited to allowing connectivity of the user equipment to the core. Within service management admission control has been recognized as a convenient mechanism to provide high-quality communication by ensuring resources availability. It represents a meaning in fulfilling the contracted service level agreement (SLA) between the user and the network provider. This paper provides a thorough analysis on different classification approaches for admission control techniques, while identifying their characteristics, differences and analogies. Currently, there is no standardized classification of admission control in the standards bodies. It further gives a more detailed analysis on the measurement-based admission control based on performance analysis, and introduces an admission control approach based on measurements. The performance of this algorithm is illustrated through simulation results.

Performance Considerations on Admission Control for Multimedia Services

“…The main principle of this algorithm is based on the attempt of avoiding the use fixed-length measurement windows, as traffic characteristics are usually unknown or can vary. By means of enlarging or shrinking the measurement window, the adaptation to the changing traffic conditions can be provided, so as to obtain a more or less conservative admission process (Statovci-Halimi, 2008b). The algorithm comprises two phases.…”