Modelling of computer and communication systems
Modelling of computer and communication systems
Reducing location update cost in a PCS network
IEEE/ACM Transactions on Networking (TON)
An integrated mobility and traffic model for resource allocation in wireless networks
WOWMOM '00 Proceedings of the 3rd ACM international workshop on Wireless mobile multimedia
Potential Fraudulent Usage in Mobile Telecommunications Networks
IEEE Transactions on Mobile Computing
Specifying Performance Measures for PEPA
ARTS '99 Proceedings of the 5th International AMAST Workshop on Formal Methods for Real-Time and Probabilistic Systems
Per-User Checkpointing for Mobility Database Failure Restoration
IEEE Transactions on Mobile Computing
Real-Time Mobility Tracking Algorithms for Cellular Networks Based on Kalman Filtering
IEEE Transactions on Mobile Computing
A simulation study of overflow replacement policies for location management in mobile networks
International Journal of Mobile Communications
Trade-off between energy efficiency and report validity for mobile sensor networks
ACM Transactions on Sensor Networks (TOSN)
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A location system utilizes sensors to track the locations of mobile users with badges. A badge periodically transmits location messages to the sensor in the room. Based on a location message, the system updates or re-confirms the position of the badge. A major performance issue of the location system is the determination of the frequency that a badge transmits the location messages (or the registration message). In this paper, we propose an analytic model to study this performance issue. Our study indicates that in many cases, by decreasing the registration frequency (and consequently saving battery power), the location system may still maintain low lost-call probability. We also observe an interesting phenomenon that if the user movement pattern is highly irregular, the opportunity of losing a call becomes smaller.