A Vertical Soft Handoff Scheme Based on SIP in the Ubiquitous Wireless Network

Author

Zhang, Wu ; Wang, JinLin

Author_Institution

Nat. Network New Media Eng. & Technol. Res. Center, IACAS, Beijing, China

fYear

2009

fDate

24-26 Nov. 2009

Firstpage

794

Lastpage

799

Abstract

Ubiquitous Wireless Network will be the important infrastructure for ubiquitous information service in the future. Ubiquitous Wireless Network is objectively heterogeneous network, so vertical handoff is one of crucial topics. A vertical soft handoff scheme is proposed based on SIP using Wireless Access Gateway (RGW). RGW triggers and controls the handoff session to ensure same two-way delay of handoff and rate of zero-loss packet for real-time streaming media. Using M/M/1 queue model, delay of the scheme meets requirement of real-time streaming media.

Keywords

media streaming; mobile computing; radio access networks; signalling protocols; SIP; heterogeneous network; real-time streaming media; ubiquitous wireless network; vertical soft handoff scheme; wireless access gateway; zero-loss packet; Computer networks; Delay; Ground penetrating radar; Information technology; Next generation networking; Pervasive computing; Quality of service; Streaming media; Ubiquitous computing; Wireless LAN; IMS; SIP; heterogeneous network; ubiquitous wireless network; vertical handoff;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Sciences and Convergence Information Technology, 2009. ICCIT '09. Fourth International Conference on

Conference_Location

Seoul

Print_ISBN

978-1-4244-5244-6

Electronic_ISBN

978-0-7695-3896-9

Type

conf

DOI

10.1109/ICCIT.2009.55

Filename

5368772