ABSTRACT
This chapter analyzes the deployment of IP multimedia subsystem (IMS) within the Code Division Multiple Access (CDMA)2000/ Wireless Local Area Networks (WLAN) hybrid network. It describes the user mobility within the hotspots follows fluid flow model. The chapter shows that in order to enhance the service offering WLAN is considered integrated with the CDMA2000 network. IMS is an architectural framework for delivering multimedia services standardized by the Third-Generation Partnership in late 1999. IMS enables advanced services such as email, video conference, presence, chat, push to talk, and IPTV to become widely available to the users. The chapter provides an overview of the architecture, the protocol suite, and the control structures. It presents an analysis of the impact of introducing services and integrating IMS with CDMA/WLAN hybrid networks. The analysis shows the rate of queries/updates to IMS servers, which are triggered as a result of a user's request for a service or due to users moving into a new registration area.
