Paper Info
Title
Architecture and testbed implementation of vertical handovers based on SIP session border controllers
Abstract
This paper describes a Session Initiation Protocol (SIP) based solution for mobility management that provides seamless mobile multimedia services in a heterogeneous scenario where different radio access technologies are used (802.11/ WiFi, Bluetooth, 2.5G/3G networks). The solution relies on the so called "Session Border Controllers" which are now widely used in many commercial SIP telephony solutions, mainly to deal with NAT traversal. Session Border Controller functionality has been extended to support seamless mobility for multimedia applications. A prototype of the proposed solution focused on VoIP services has been implemented in a test bed which is able to perform seamless handovers (and NAT traversal) using the 802.11, Bluetooth and 3G (UMTS) access networks. Measurements results are reported which analyze the performance of the solution in a real world environment, using commercial WiFi and 3G services.
Year
DOI
Venue
2007
10.1007/s11277-007-9259-2
Wireless Personal Communications
Keywords
Field
DocType
Seamless handover-SIP,Application layer mobility,Session Border Controller,WiFi,3G networks
Session border controller,UMTS frequency bands,Mobility management,Computer science,Testbed,Computer network,Session Initiation Protocol,NAT traversal,Bluetooth,Voice over IP
Journal
Volume
Issue
ISSN
43
3
0929-6212
Citations 
PageRank 
References 
7
0.71
20
Authors
4
Name
Order
Citations
PageRank
Stefano Salsano179978.03
Luca Veltri217321.96
Andrea Polidoro3343.56
Alessandro Ordine4396.39