Measurement And Modeling Of 2GHz-Band Out-of-Sight Radio Propagation Characteristics Under Microcellular Environments

Abstract

On the bases of the measurement results gained in Tokyo metropolitan areas, this paper discusses the 2GHz band propagdion charucteristics of out-of-sight areas under microcellular environment. The measured results show that the received signul power is totally dominuted b y building-wallreflected waves in out-of-sight areas. Based on the analysis of the results, the paper proposes a calculation model for the line-of-sight roads using only wall-reflected waves. The proposed model well explain the phenomena; (a) that, the wider the out-of-sight pei-pendiculur roads, the larger the path loss on such roads; (b) that, if the distance from a base station to a turning corner becomes longer, the received signul comes to suffer from the larger attenuation b y turning the corner into out-of-sight areas; and (c) that, when the corner becomes more distant from a base station, the propagation path loss slope after turning the comer becomes larger.