ISM Band Indoor Wireless Channel Amplitude Characteristics: Path Loss and Gain vs. Distance and Frequency

This thesis deals with the characterization of indoor wireless channels in the ISM bands (902-928 MHz and 2.4-2.5 GHz). This characterization encompasses estimation of propagation path loss vs. distance, magnitude of the channel transfer functions and amplitude correlation functions using propagation measurements. The thesis explains the various propagation models, their importance and the parameters used in these models to characterize indoor channels. The experiments supporting this thesis were conducted in Stocker Center, the engineering school of the university. In the first part, path loss vs. distance on various floors was measured. The results were used to determine the path loss exponent and standard deviation. The second part of the thesis addresses dispersive channel parameters and measurements of the amplitude-squared transfer functions and amplitude correlation functions. These measurements and models are a useful first-order description of the channel.