An analysis of IP multimedia subsystems for a hybrid network

This paper analyzes signaling traffic generated by IP Multimedia Subsystem (IMS) when deployed within a hybrid WLAN IEEE 802.11 and CDMA2000 networks to provide wireless and broadband services to users. IMS provides a services infrastructure to 3G networks and beyond and delivers the capability to maintain sessions among calling parties. IMS is under varying degrees of trials and deployment. Service providers view the next generation network services as IMS based services due to the flexibility it provides for offering a variety services, including multimedia and interactive services. The hybrid network provides users the ability to utilize IMS services via WLAN and experience bandwidth intensive applications. From a business perspective, such hybrid networks would allow service providers to extend to users a variety of rich multimedia services, reduce customer churn, and increase revenue generating opportunities.