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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.

Mean receiver power prediction for indoors 802.11 WLANS using the ray tracing technique