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NLOS mitigation method for urban environments

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2 Author(s)
Al-Jazzar, S. ; Dept. of ECECS, Cincinnati Univ., OH, USA ; Caffery, J.

The majority of the errors in cellular and PCS-based wireless location systems happen due to the effect of non-line-of-sight (NLOS) propagation. In order to minimize the location estimation error to mitigate the NLOS effect under such conditions, we propose a simplified location technique for urban areas. The algorithm is based on an optimization of a set of nonlinear equations with inequality constraints. Simulation results over different urban schemes show that the algorithm provides considerable improvement over traditional location algorithms.

Published in:

Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th  (Volume:7 )

Date of Conference:

26-29 Sept. 2004