Conservative soft handoff for heterogeneous wireless networks

Abolfazl Nazari, Philip Branch, Jason But, Hai L. Vu

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

2 Citations (Scopus)


Seamless handoff between different wireless technologies is a vital requirement for the next generation mobile networks (NGMN). The soft handoff (SHO) method provides seamless roaming, but makes heavy use of battery and radio resources. In this paper, we propose a conservative soft handoff (cSHO) which maintains the benefits of SHO and reduces the consumption of resources. Instead of using both radio interfaces during the handoff period, the mobile station (MS) activates and deactivates its radio interfaces and switches between them to maintain the best possible radio connection. Since multimedia packets are already duplicated in the network and buffered in the base stations, fast switching between interfaces is possible. We investigate the performance of our proposed scheme by simulation and compare the performance of the cSHO scheme with the SHO and hard handoff (HHO) mechanisms.

Original languageEnglish
Title of host publication2010 IEEE Wireless Communications and Networking Conference, WCNC 2010 - Proceedings
Publication statusPublished - 3 Aug 2010
Externally publishedYes
EventIEEE Wireless Communications and Networking Conference 2010 - Sydney Convention and Exhibition Centre, Sydney, Australia
Duration: 18 Apr 201021 Apr 2010 (Proceedings)

Publication series

NameIEEE Wireless Communications and Networking Conference, WCNC
ISSN (Print)1525-3511


ConferenceIEEE Wireless Communications and Networking Conference 2010
Abbreviated titleWCNC 2010
Internet address

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