Vol.27 No.3(1992.9)
Research Report

Estimation of Received Signal Characteristics in Mobile Communication Environments

Yoshikazu Asano


The optimization of mobile antenna's performances in mobile communication environments is an important problem. To solve the problem, it is necessary that received signal characteristics, such as the received power and the fading spectrum, can be estimated considering the radiation pattern of the antenna. In this paper, the received signal characteristics are estimated from the radiation pattern and the angular probability density distribution of wave arrival. The distribution is estimated using a propagation model proposed here. The propagation model consists of both the environmental model to simulate surroundings of ratio wave's propagation paths and the paths and the path model to simulate propagation paths. It is shown that the tendency of the measured distribution is well estimated using the propagation model. The propagation model is useful for estimating the angular probability density distribution of wave arrival. Furthemore, it is verified that the received signal characteristics obtained from both the radiation pattern and the estimated angular probability density distribution of wave arrival agree with the measured results.