Analysis of SIP-based mobility management in 4G wireless networks

Providing seamless mobility support is one of the most challenging problems towards the system integration of fourth generation (4G) wireless networks. Because of the transparency to the lower layer characteristics, application-layer mobility management protocol like the Session Initiation Protocol (SIP) has been considered as the right candidate for handling mobility in the heterogeneous 4G wireless networks. SIP is capable of providing support for not only terminal mobility but also for session mobility, personal mobility and service mobility. However, the performance of SIP, operating at the highest layer of the protocol stack, is only as good as the performance of the underlying transport layers in such a heterogeneous environment. In this paper we analyze the handoff performance of SIP in a IP-based 4G network with Universal Mobile Telecommunication System (UMTS) and Wireless LAN (WLAN) access networks. Analytical results show that the

• Type: Journal
• Year: 2004
• Where: COMCOM
• Authors: Nilanjan Banerjee, Wei Wu, Kalyan Basu, Sajal K. Das
• Keywords: Application-layer Mobility Management, COMCOM 2004, Seamless Mobility Support, Wireless Networks