An end-to-end approach to host mobility
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Application-layer mobility using SIP
ACM SIGMOBILE Mobile Computing and Communications Review
Theory, Volume 1, Queueing Systems
Theory, Volume 1, Queueing Systems
IDMP: an intradomain mobility management protocol for next-generation wireless networks
IEEE Wireless Communications
Mobility management for VoIP service: Mobile IP vs. SIP
IEEE Wireless Communications
Mobility support in wireless Internet
IEEE Wireless Communications
Performance optimization of VoIP calls over wireless links using H.323 protocol
IEEE Transactions on Computers
Terminal independent mobility for IP (TIMIP)
IEEE Communications Magazine
Measurements of SIP signaling over 802.11b links
Proceedings of the 3rd ACM international workshop on Wireless mobile applications and services on WLAN hotspots
Secure universal mobility for wireless Internet
ACM SIGMOBILE Mobile Computing and Communications Review
A multilayered hybrid architecture to support vertical handover between IEEE802.11 and UMTS
Proceedings of the 2006 international conference on Wireless communications and mobile computing
Performance study of IMS authentication procedures in mobile 3G networks
IWCMC '07 Proceedings of the 2007 international conference on Wireless communications and mobile computing
Analysis of UMTS radio channel access delay
Computer Communications
Performance Analysis and Comparison of the MIPv6 and mSCTP Based Vertical Handoff
ICCS '07 Proceedings of the 7th international conference on Computational Science, Part IV: ICCS 2007
Wireless Personal Communications: An International Journal
Mobility management across hybrid wireless networks: Trends and challenges
Computer Communications
Computers and Electrical Engineering
Towards cross layer mobility support in metropolitan networks
Computer Communications
A seamless voice call handover scheme for next generation cellular network
APCC'09 Proceedings of the 15th Asia-Pacific conference on Communications
Proceedings of the 5th International Conference on Future Internet Technologies
A novel SIP based procedure for congestion aware handover in heterogeneous networks
Computer Communications
Analysis of SIP transfer delay in multi-rate wireless networks
IEEE Communications Letters
Minimizing SIP session re-setup delay over wireless link in 3G handover scenarios
EURASIP Journal on Wireless Communications and Networking
Computer Networks: The International Journal of Computer and Telecommunications Networking
Radio resource management in emerging heterogeneous wireless networks
Computer Communications
Fast Handoff in SIP-Based Next Generation Mobile Networks
Wireless Personal Communications: An International Journal
Application signaling protocols as basis for qos in IP-vased wireless networks
IICS'05 Proceedings of the 5th international conference on Innovative Internet Community Systems
IPOM'05 Proceedings of the 5th IEEE international conference on Operations and Management in IP-Based Networks
Analysis of Ongoing SIP Session with Resource Reservation in Vertical Handover Scenario
Wireless Personal Communications: An International Journal
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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 handoff to a UMTS access network introduces a minimum delay of 1.4048 s for 128kbps channel, while for handoff to a WLAN access network the minimum delay is 0.2 ms. In the former case the minimum delay is unacceptable for streaming multimedia traffic and requires the deployment of soft-handoff techniques in order to reduce the handoff delay to a desirable maximum limit of 100 ms.