Tehnički vjesnik, Vol. 17 No. 1, 2010.
Izvorni znanstveni članak
Radio wave propagation mechanisms and empirical models for fixed wireless access systems
Josip Milanović
; Croatian Post and Electronic Communication Agency, Osijek, Croatia
Snježana Rimac-Drlje
orcid.org/0000-0003-3081-6214
; University of Osijek, Faculty of Electrical Engineering, Osijek, Croatia
Ivo Majerski
; Croatian Post and Electronic Communication Agency, Zagreb, Croatia
Sažetak
This paper provides a survey of the basic mechanisms which influence the propagation of electromagnetic waves at most. It also deals with features of empirical models often used in a process of fixed wireless access network planning and implementation. Four empirical models, SUI, COST 231-Hata, Macro and Ericsson, which are most suitable for path loss prediction for such a system, are presented. By using these propagation models the receiving signal levels are predicted for different types of environment for a WiMAX (Worldwide Interoperability for Microwave Access) system installed in the city Osijek, Croatia. Measurement results of receiving WiMAX power at 3,5 GHz are also presented and compared with the results predicted by using the propagation models.
Ključne riječi
empirical models; radio propagation; WiMAX
Hrčak ID:
50605
URI
Datum izdavanja:
31.3.2010.
Posjeta: 10.403 *