Characterization of mobility patterns based on cell topography in a cellular radio system

Abstract

Teletraffic modelling of users is crucial for cellular system layout and planning, and to evaluate tradeoffs in system design issues. In order to be useful, the model should capture mobility under the most generalized conditions. We develop models that incorporate general mobility patterns that are induced by the cell topography (e.g., road layout, street orientation, density of intersections). In particular, we study the effect of the different mobility patterns on the handoff probability. The mobility patterns are induced by common terrains such as random, Manhattan, circular and highway. The results suggest that we may be able to estimate the handoff probabilities from a knowledge of the cell terrain, the mobile trajectory, and the vehicular movements in a cellular network, and thus may serve as a useful guide for cellular network engineering.