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  Document Info
Enabling Roaming in Heterogeneous Multi-Operator Wireless Networks
 
Type: Journal
langage: English
Title: Enabling Roaming in Heterogeneous Multi-Operator Wireless Networks
Date (yyyy/mm/dd): 2007-09-20
 
Keywords: wireless convergence, service mobility, roaming architecture, heterogeneous wireless networks.
Authors: Jacques Demerjian, Oscar Salazar Gaitán, Philippe Martins, Samir Tohmé
Other informations:
Domains: Transmission, Wireless communications
 
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Abstract

Next generation wireless networks will take advantage of the popularity and the data rates offered by unlicensed wireless networks to enhance cellular services. Nowadays, it is not surprising to see heterogeneous wireless networks coexisting on a daily basis i.e. UMTS, WiFi, and WiMAX.
Unfortunately, technical issues and the lack of roaming agreements between network operators
prevent interoperability. One of the goals of next generation wireless networks is to enable service
mobility between heterogeneous wireless networks, thus we present in this article a SIP-based
roaming architecture to enable service mobility in heterogeneous multi-operator wireless networks.
Our objective is to establish mutual trust between cellular network operators and unlicensed
wireless networks through a efficient SLA monitoring and enforcement and brokerbased access control. All this, with minimal changes in current wireless network architectures.

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