Simulative Performance Evaluation of the Temporary Pseudonym Method for Protecting Location Information in GSM Networks

The information about the location of a mobile user belongs to the most sensitive data within mobile communication networks. One possibility to protect it especially against curious insiders with access to the network consists of storing the actual information in so-called “home trusted devices” and using temporary pseudonyms for user registration in the network databases. This paper presents a detailed OPNET simulation and evaluation of the signalling cost of this approach compared to standard GSM