Mobility

SIP-Based IMS Signaling Analysis for WiMax-3G Interworking Architectures

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Executive Summary

The Third-Generation Partnership Project (3GPP) and 3GPP2 have standardized the IP Multimedia Subsystem (IMS) to provide ubiquitous and access network-independent IP-based services for next-generation networks via merging cellular networks and the Internet. The application layer Session Initiation Protocol (SIP), standardized by 3GPP and 3GPP2 for IMS, is responsible for IMS session establishment, management, and transformation. The IEEE 802.16 Worldwide Interoperability for Microwave Access (WiMax) promises to provide high data rate broadband wireless access services. In this paper, the authors propose two novel interworking architectures to integrate WiMax and Third-Generation (3G) networks. Moreover, they analyze the SIP-based IMS registration and session setup signaling delay for 3G and WiMax networks with specific reference to their interworking architectures.

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