Characterization of vertical handoff delay for mobile IP based 3G/WLAN integrated networks

Abdul Aziz Al-Helali*, Ashraf Mahmoud, Talal Al-Kharobi, Tarek Sheltami

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations


Mobile IP is one of the popular mobility solution and a viable candidate for the Beyond 3rd Generation (B3G) networks such as the integrated 3rd Generation Universal Mobile Telecommunications System (UMTS) and the Wireless Local Area Networks (WLANs). Mobile IP has many configuration and enhancements that are proposed by IETF such as the Care-of-Address (CoA), Collocated CoA, Mobile IPv6, and route optimizations. In this paper, we present a side-by-side performance evaluation and comparisons of the UMTS to WLAN handoff delay that results from using each configuration in the lately adopted UMTS/WLAN interworking architecture by 3GPP. In addition, we analyze the delay components due to 3GPP security and Internet protocol integration requirements. Simulation results show that under low network loading all configurations yield similar performances. However, Mobile IP with IPv6 configuration is more sensitive for network loads and wireless access speeds. In fact, it produces the highest delay figures at high load. Moreover, 3GPP security procedures contribute to more than 60% of the handoff delay for all the configurations.

Original languageEnglish
Title of host publicationVTC Spring 2009 - IEEE 69th Vehicular Technology Conference
StatePublished - 2009

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252


  • 3G/WLAN integrated networks
  • Heterogeneous networks
  • Vertical handoffs

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics


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