Optimized Walficsh-Bertoni model for path loss prediction DTTV propagation in urban area of Southern Thailand

Abstract

This article presents the optimization of a Walficsh-Bertoni path loss model to be used in designing the DTTV propagation in an urban area of southern Thailand through the data collection on the signal power that the network operators of 4 channels broadcasting within the distance of 2.5–6.5 Km. in urban Hat Yai, Songkla Province, an area of high density with buildings. A least square method is used for the optimization while an efficient indicator is through statistical values of root mean square error (RMSE) and relative error (RE). The result is a new Walficsh-Bertoni model that has RMSE value lesser than the original model whereas the RE value is also closer to zero than the original models. Subsequently, the Walficsh-Bertoni model is more precise in a prediction, making it optimized for use in planning the network.