The basic aim of this research is to compare the measured channel impulse response results with analytical results obtained with the help of Wireless Insite software (ray tracing tool) for 5 GHz wireless band indoor channel. Measurements were taken at four different locations for three positions at each location in one of the basement hallways of Stocker Centre, Ohio University. Power delay profile and root mean square delay spread were obtained from the measurements through data processing. The approximate model for the same environment was created in the software. Power delay profiles and root mean square delay spread was obtained through simulations which are referred as analytical results. The measured and analytical power delay profiles were compared. Also, a quantitative comparison of root mean square delay spread for measured and ray tracing values was carried out.
In order to analyze the accuracy for ray tracing, a perturbation analysis was conducted. These included varying transmitter- receiver positions, dimensions of the objects, materials, etc. and assess the effects of this on root mean square delay spread values. The assessment showed that the measured and ray tracing results are comparable quantitatively. Also, the power delay profiles obtained from ray tracing were found comparable to the measured results in terms of the delay span. The perturbation analysis proved to be helpful in improving the inaccuracies involved during measurements and approximations of the model to some extent.