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Combining Drive Tests and Automatically Tuned Propagation Models in the Construction of Path Loss Grids

Fernandes, D. F. ; Ferreira, L. S. ; Zarmehri, M. ; Sebastião, P. ; Cercas, Cercas, F. ; Dinis, R.

Combining Drive Tests and Automatically Tuned Propagation Models in the Construction of Path Loss Grids, Proc IEEE Annual International Symposium on Personal Indoor and Mobile Radio Communications PIMRC, Bologna, Italy, Vol. , pp. - , September, 2018.

Digital Object Identifier: 10.1109/PIMRC.2018.8580708

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Abstract
The constant need of operators to ensure a high quality of service requires an adequate estimation of signal level in the service area. Drive Tests (DTs) are used to monitor signal level. Still this is an expensive task, not being able to cover all areas. A methodology to build complete path loss grids for a given site is proposed. Starting from available DTs measurements for certain pixels, path loss is estimated for the remaining ones by tuning a propagation model and extrapolating the path loss for neighboring pixels. This allows to provide a complete path loss estimation for the desired area around the cell.