Site specific analysis on mm-Wave radio propagation in commercial small urban

This paper describes R.M.S delay spread according to the TX-RX separation distance in commercial urban zone measurement at millimeter wave frequency. We found that small scale fading in our focus is caused by multipath due to a large number of reflective and diffractive characteristics in various urban environments. With the ray-optical site specific model presented in this paper, R.M.S delay spread predictions in urban hot-spot propagation environment gave reasonable accuracy.