A survey on WiMAX-3G interworking

IEEE 802.16 WiMAX provides high data rate but limited coverage area and 3G is well established network with low data rate as comparison to WiMAX network. So if we will combine both WiMAX and 3G network then it provides ubiquitous high speed data access as well as attract wider user base. In this paper we have taken component which is used in interworking architecture, security consideration, authentication procedure, fast handoff between heterogeneous (WiMAX-3G) networks. At last we will talk about effect of interworking architecture on IMS (IP multimedia subsystem) signal delay.