An adaptive distance-based location update algorithm for next-generation PCS networks

In this paper, we propose a stochastic model to compute the optimal update boundary for the distance-based location update algorithm. The proposed model is flexible and captures some of the real characteristics in the wireless cellular environment. The model can adapt to arbitrary cell topologies in...

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Bibliographic Details
Published in:IEEE journal on selected areas in communications 2001-10, Vol.19 (10), p.1942-1952
Main Authors: Wong, V.W.S., Leung, V.C.M.
Format: Article
Language:English
Subjects:
Algorithms
Bandwidth
Base stations
Boundaries
Cellular
IP networks
Mathematical models
Mobile radio mobility management
Networks
Next generation networking
Paging
Personal communication networks
Position (location)
Scholarships
Stations
Stochastic models
Stochastic processes
Studies
Table lookup
Topology
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Summary:In this paper, we propose a stochastic model to compute the optimal update boundary for the distance-based location update algorithm. The proposed model is flexible and captures some of the real characteristics in the wireless cellular environment. The model can adapt to arbitrary cell topologies in which the number of neighboring base stations at different locations may vary. The cell residence time can follow general distributions which captures the fact that the mobile user may spend more time at certain locations than others. The model also incorporates the concept of a trip in which the mobile user may follow a particular path to a destination. For implementation, the decision of location update can be made by a simple table lookup. Numerical results indicate that the proposed model provides a more accurate update boundary in real environment than that derived from a hexagonal cell configuration with a random walk movement pattern. The proposed model allows the network to maintain a better balance between the processing incurred due to location update and the radio bandwidth utilized for paging between call arrivals.
ISSN:0733-8716
1558-0008
DOI:10.1109/49.957309