DIFFERENT PROPAGATION MODELLING TOOLS USED FOR VARIOUS INDOOR AND OUTDOOR SCENARIOS

In wireless communication the transmitted signal from the base station to the receiver may reach either through a direct Line of Sight or it may be obstructed due to the presence of vegetation, buildings, and mountains. The Propagation models provide a means to calculate the path loss incurred by the transmitted signal. However the predicted path loss by the existing propagation models is different from the actual path loss measured. These propagation models are based on the terrain profiles and data measurements taken in countries different from India. In order to make these models provide actual results in India it needs to make adjustments. For finding the best suitable propagation model for an area various tools are available. This paper focuses on the various tools available and their features which are used for propagation modelling for indoor and outdoor scenarios for urban, sub urban and rural areas