Ray-tracing application to mobile localization in multipath indoor environments

This work presents a new indoor localization method based on the fingerprinting technique. A Ray-Tracing model is used to provide information about the multipath effects. The fingerprinting technique uses the direction of arrival (DOA) and the received signal strength (RSS) of the received rays. The location estimation is calculated while taking into account the Euclidian distance between the DOA and the RSS from each unknown position and the information of the fingerprints. To prove the goodness of the algorithm, a scene of a real building was analyzed. Numerical calculations were performed to show the mean error and the variance of the estimated error in the location process.