IP Multimedia Subsystem over WiMAX - Fast authentication mechanism
Date Issued
2009
Date
2009
Author(s)
Nian, Jia-Hua
Abstract
The IP Multimedia Subsystem (IMS) is originally defined as the core network for 3G mobile systems by the 3rd Generation Partnership Project (3GPP), and has been proposed as a key element in Next Generation Networks (NGN) that supports multimedia services in the packet switched domain. Before using IMS services, users should first obtain access to radio networks and then register to IMS core network. We propose an improved registration mechanism to reduce the number of message exchange in IMS core network and latency. The mechanism caches and stores access authentication information separately in the AAA server in access network and in the HSS. We compare registration latency of our proposed mechanism with the standard through NCTUns simulator. The simulation results confirm better performance of our proposed mechanism.
Subjects
IP multimedia core network subsystem (IMS)
IMS over WiMAX
one-pass
authentication
HSS
Type
thesis
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