Space-time-polarization diversity in multiple input multiple output communication systems

We investigate the use of space-time block coding (STBC) in multiple-input multiple-output (MIMO) communication systems which employ more than one dual-polarized antennas. The use of dual polarized antennas theoretically double the number of virtual antennas used in the system. On the other hand, the correlation effects and the cross-polar interference (XPI) deteriorates the system performance. In this work, we consider these effects and present the performance analysis of 2 times 1 system using dual-polarized antennas with simulation results under various XPI and correlation scenarios for STBC. Both the theoretical analysis and the simulation results depict the significant performance improvements attained by the use of dual-polarized antennas.