Multi Interface Mobility Management with SIP and MIP (To Avoid Handoff Delay)

We provide an experiment analysis of MIMM (Multi Interface Mobility Management) demonstrated in a heterogeneous network involving 802.11b and CDMA access technologies. Wireless LAN (WLAN), or Wi Fi is becoming prevalent means of access to the wireless internet. Especially the advent of the hotspot service brings the roaming user the benefit of receiving broadband internet access while outside one’s enterprise network. But the coverage of the hotspot in public area is still limited and may not be available everywhere. On the other hand 2.5G/3G cellular system provides wide area connectivity to the roaming users. Therefore, the scenario for seamless communication involving movement between cellular and hotspot is becoming realistic these days. Because of lack of available solutions to take care of such mobility scenarios, switching among multi-interface causes several problems as it involves interaction between physical layer, network layer and the application layer. MIMM (Multi-Interface Mobility Management) is a module that helps to realize the seamless interface switching involving 802.11b and CDMA networks .It provides the interaction between cross layers while providing the mobility management solution. Keywords—MIMM; CDMA; Handoff; SIP; MIP