Local anchor scheme for reducing signaling costs in personal communications networks
IEEE/ACM Transactions on Networking (TON)
Dynamic mobile user location update for wireless PCS networks
Wireless Networks
Performance Analysis for Dual Band PCS Networks
IEEE Transactions on Computers
Failure recovery of HLR mobility databases and parameter optimization for PCS networks
Journal of Parallel and Distributed Computing - Special issue on wireless and mobile computing and communications
IEEE Transactions on Parallel and Distributed Systems
GSM System Engineering
The GSM System for Mobile Communications
The GSM System for Mobile Communications
Potential Fraudulent Usage in Mobile Telecommunications Networks
IEEE Transactions on Mobile Computing
Implementing Automatic Location Update for Follow-Me Database Using VoIP and Bluetooth Technologies
IEEE Transactions on Computers
A simulation study of overflow replacement policies for location management in mobile networks
International Journal of Mobile Communications
| Hi-index | 14.98 |
In a cellular phone system, mobility databases called visitor location registers (VLRs) are used to temporarily hold the subscription information of the roaming users who visit the service area of the VLR. When the users leave the VLR area, the corresponding records in the VLR are deleted. Due to user mobility, the capacity of the VLR may not be large enough to hold information for all visitors in the VLR area at some time periods. This issue is called VLR overflow. This paper describes a record replacement policy to allow mobile users to receive services in the VLR overflow situation. We utilize analytic modeling to investigate the performance of the replacement policy. The study indicates that our approach effectively eliminates the VLR overflow problem with insignificant extra overhead.