Investigated performance of Davidson model for DVB-T2 propagation in medium and small urban area

Abstract

This study investigates the efficiency of Davidson Path Loss Model in order to apply for use in the DVB-T2 propagation network design for medium and small urban areas in southern Thailand. The data being collected from the electric field strength while broadcasting of two channels within urban areas of Hadyai, Songkla Province are used for the path loss analysis. The result through a comparison on the efficiency of an old Davidson Model and a calibrated Root Mean Square Error (RMSE) model along with an efficiency index of Relative Error (RE) shows that the old Davidson Model is closer to the measured data than the calibrated ones. The statistics also demonstrates that the RE of the old Davidson Model is at the least when being compared with the RE of both the calibrated and the Hata Models. The old Davidson Model is therefore, the most accurate and the most optimized for the design of the propagation network.