Path Loss Prediction Formula for Urban and Suburban Areas for 4G Systems

A site-general type prediction formula is investigated based on measurement results in an urban area in Japan assuming that the prediction frequency range required for the fourth-generation (4G) mobile communication systems is from 3 to 6 GHz, the distance range is 0.1 to 3 km, and the range in the base station height is from 10 to 100 m. Since the frequency characteristics are independent of the other parameters based on the measurement results, we examine the expansion of the Sakagami formulae for the 4G systems and propose a prediction formula based on the expanded Sakagami formula. Moreover, a correction formula for suburban areas is proposed based on the difference between calculated values using the prediction formula for urban areas and the received levels measured in the suburban area