Proposal of method for estimating received signal characteristics in mobile communication environments

A method for estimating the received signal characteristics (MERS) is developed. The MERS aims at estimating the received power and the fading spectrum at the mobile in mobile communication environments. In MERS, these characteristics are estimated on the basis of both an angular probability density distribution (APD) of wave arrival and a radiation pattern. The APD can also be estimated under arbitrary environmental conditions in the MERS. For the estimation of the APD of wave arrival, a novel propagation model is proposed in this paper. The model consists of an environment model that represents the statistical features of the configuration of buildings along streets and a path model that represents geometrical propagation paths from a transmitting point to a receiving point on the streets. The estimated results of the received signal characteristics are compared with the measured ones. It is proved that the received power and the fading spectrum can be closely estimated.