Experimental Evaluation of Correlation Properties of Large Scale Parameters in an Indoor LOS Environment

The primary goal of this paper is through examining a set of measurement data to show that the spatial variation properties of large scale parameters can well be expressed by the exponential decaying function, as proposed by Algans et al. (2002), but with quite a small decorrelation distance. The large scale parameters include large scale fading and delay spread as well as azimuth spreads at the transmitter and receiver sides. Furthermore, it is also shown that the cross correlation between the large scale parameters is relatively small, only being -0.54 between large scale fading and delay spread, while being almost 0 for the others. The measurement data obtained in an indoor LOS scenario in the campus of Technische Universitat Ilmenau was used for this purpose.