Prediction models in mobile communication system : application to Rabat city
R. Elassali1*, A. Ait Ouahman1, M. Wajih2, A. Bekkali2
1Laboratoire d’Electronique et d’Instrumentation, Département de Physique, Faculté des Sciences Semlalia, B.P. 2390,
2Direction de Recherche et Développement, Maroc Telecom, Rabat, Maroc
* Corresponding author. E-mail : firstname.lastname@example.org /email@example.com
Received : 03 June 2002; revised version accepted : 20 October 2002
This paper aims at studying Sakagami and Hata predictions models, in order to choose the most adapted model to our cellular network. To this end, it is necessary to perform measurements of the attenuation of the received signal for a given emitted power, and to compare the results given by the models. The difference between Sakagami and Hata predicted model with real path loss is respectively, 20 and 45 dB. Sakagami model showed therefore, the most adapted model for the case of Rabat city. In order to minimise the error between real and predicted path loss, we adapt the Sakagami model to our constraints. So we have satisfactory results with a reduction of error from 20 to 4 dB.
Keywords : Cellular telephony; Propagation; Distortion; Planning; Mobile radio; Prediction model; Path loss; Multi-path.