Nuevo modelo de propagación para redes WLAN operando en 2.4 Ghz en ambientes interiores

The recently increase of wireless data networks operating at unregulated frequencies, demand the development of propagation models to take into account, in a lesser or more detailed manner, all the issues that affect the extent of coverage of the indoor environment in which the networks are deployed; the models allow for a more accurate estimation of the level of signal loss and can be applied to indoor and outdoor environments. Therefore, this paper focuses on developing a propagation model that allow to estimate the signal loss on a WLAN (Wireless Local Area Network) operating at 2.4 GHz according to the standard IEEE 802.11b/g. The study is restricted to indoor environments applications and is based on a set of measurements of the signal power level obtained inside the buildings of the Universidad Nacional Experimental del Tachira - UNET, San Cristobal, Venezuela. The new model presents a better performance in the estimation of the propagation losses that the models of the literature with whom it was compared. Key words:  Wireless data networks, indoor environments, coverage, propagation model