Date Added: Apr 2013
For several wireless communication technologies, many propagation models have been presented in measuring path losses. In this paper, two propagation prediction models which relate signal strength log of distance are presented and compared with empirical results measured in a lecture building. For the empirical measurement, a TP-LINK router and a laptop are used to implement 2.4 GHz, indoor point to point ad hoc wireless network in the authors' lecture building. Attenuation parameters of obstacles used in the prediction model are estimated from the empirical measurement by using statistical approach. Finally, the accuracy of the prediction models is proof by comparing empirical measurement results with the help of least square model fitting.