Propagation Prediction in Indoor Environments with a Modified UTD Model

By analyzing the limitations in the existing 2-D/3-D hybrid model,a modified UTD model combined with the actual characteristics for indoor propagation prediction is presented.The model is based on the plannar chart of the environments for a transmitter and a receiver located at the same room.It introduces two plane views reference to the transmitter and the receiver respectively and a normal vector criterion to construct the visibility tree.The calculation results show that the model is efficient and accurate.