Movement-based location update and selective paging for PCS networks
IEEE/ACM Transactions on Networking (TON)
A dynamic paging scheme for wireless communication systems
MobiCom '97 Proceedings of the 3rd annual ACM/IEEE international conference on Mobile computing and networking
Location update optimization in personal communication systems
Wireless Networks
Tracking mobile users with uncertain parameters
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Cell identification codes for tracking mobile users
Wireless Networks
A Speed-Adaptive Location Management Scheme
ICPADS '02 Proceedings of the 9th International Conference on Parallel and Distributed Systems
IWDC'04 Proceedings of the 6th international conference on Distributed Computing
Challenges of computing in mobile cellular environment-a survey
Computer Communications
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In cellular mobile networks total location management cost (update + paging) is to be minimized. Previous studies suggest that velocity vector (speed and direction) of a mobile unit (MU) can be used to design optimal strategies. But the schemes use complex velocity estimation techniques and requires explicit announcement of velocity profile during an update. We propose a novel velocity based location management scheme in which explicit announcement of velocity by MU is not required during an update as mobile switching centre (MSC) stores and adjusts velocity profile of MU intelligently. Location of MU can be predicted using the profile of MU stored in the MSC during the paging process. The proposed scheme can be implemented using directional Cell Identification Codes which requires no extra signaling overhead. Simulation shows that our scheme performs far better than existing schemes.