Effects of antenna polarization on power and RMS delay spread in LOS/OOS indoor radio channel

The ray tracing (RT) method offers significant advantages in terms of the accurate and comprehensive prediction of radio channel characterization in indoor environments. As a consequence, this paper presents results of computer simulation based on a three-dimensional (3D) RT method for various directional polarized antennas, where the effects of antenna polarization on power and RMS delay spread are investigated in line-of-sight (LOS) and out-of-sight (OOS) indoor channel. These results indicate that the difference in predicted power between cross-polar case and copular case, under LOS environment, is more noticeable than that of OOS case. Whereas, the difference in predicted RMS delay spread between cross-polar and copular case, under OOS environment, is more noticeable than that of LOS case.