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Closed-form expressions for the prediction of microcellular mobile radio propagation in urban environments

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2 Author(s)
Wei Zhang ; Wireless Commun. Technol. Group, Nat. Inst. of Stand. & Technol., Gaithersburg, MD, USA ; Moayeri, N.

The paper derives two closed-form expressions for predicting microcellular mobile radio signal levels in urban street-grid environments. The results demonstrate that the two expressions are faster and more accurate than existing models and methods. Benefiting from physical optics and the conservation of energy, the two expressions are alternatives to available techniques such as ray tracing. The dielectric property (i.e., permittivity) of street buildings and other obstacles is essential to the ray tracing technique. However, there are no established, widely accepted techniques for selecting the permittivity in urban mobile environments, which varies in a wide range. Establishing a natural link between the received power after a street corner to the width of the street and the angle of incidence, our expressions show the possibility of making fast and accurate propagation predictions without having to use the permittivity.

Published in:

Antennas and Propagation, IEEE Transactions on  (Volume:51 ,  Issue: 5 )