Enhancement of managed roaming procedure in GSM

Authors:
Jaroslav Vrana;Petr Vlacil;Robert Bestak
Affiliations:
Czech Technical University in Prague, Technicka, Czech Republic;Czech Technical University in Prague, Technicka, Czech Republic;Czech Technical University in Prague, Technicka, Czech Republic
Venue:
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
Year:
2009

Citing 1
Cited 1

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Abstract

The paper investigates the impact of non-standard implementation of Managed roaming in a GSM provider network. This non-standard implementation can cause variety of problems in the host network. This paper describes and demonstrates a solution how to protect the host network entity VLR against to the non-standard usage of Managed roaming procedure. Our proposition is based on modification of Location Update and Authentication procedures. The functionality of modified procedure was successfully verified by testing in real mobile networks.