Handoff management for third generation cellular networks
Date
1997
Authors
McGuire, Michael Liam
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Abstract
This work describes methods for controlling handoff in third generation cellular networks. Third generation networks must deal with high user densities and disparities in user requirements which requires efficient and flexible handoff techniques. Methods used to estimate parameters of the radio channel such as velocity estimation, distance measurement, and fading parameter estimation are described. A method of analyzing the handoff performance m second generation networks giving statistics on basestation assignment, and mean received signal strength is given A new handoff algorithm for third generation networks is developed. Imprecise data is managed using a fuzzy logic decision system. Simulation results are presented which show that the new algorithm gives superior performance to the second generation handoff algorithm. The algorithm can be easily adjusted to treat different classes of users differently m a natural and robust fashion.