Resumo

SANCHEZ, J.; CASTRO, C.  e  VILLASENOR, L.. Mean receiver power prediction for indoors 802.11 WLANS using the ray tracing technique. J. appl. res. technol [online]. 2007, vol.5, n.1, pp.33-48. ISSN 2448-6736.

A technique for the modeling of wireless channels, namely the image ray tracing algorithm, is developed in this work to predict the local mean received power of a wireless local area network (WLAN) based on the 802.11a standard operating in the 5 GHz band. This technique has been enhanced in order to account for the propagation of the electromagnetic waves thru a wireless environment, including the absorption and reflection phenomenon at obstacles. The image ray tracing algorithm is used to calculate all the possible propagation paths between a radio transmitter and a receiver. The simulation results of the mean received power strength are compared against field measurements to validate the convenience of the simulation approach.

Palavras-chave : Mobile communications; WLANs; IEEE 802.11; 4^th Generation wireless networks; Wireless channel model; Ray tracing.

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