Capacity of Polarized-MIMO (P-MIMO) System in Different Wireless Channels

The channel capacity of multiple input multiple output (MIMO) wireless communication systems can be remarkably improved via using polarization diversity. It is obvious that the aforementioned improvement can save transmission power/energy; therefore, contribute to green communications. Recent researches have proposed system designs to utilize antennas with multiple polarization. A MIMO communication system that utilizes these antennas will improve its channel capacity if optimal polarization vectors are used. This paper provides analysis and evaluation of the improvement in channel capacity for different wireless channels via employing the polarized-MIMO (P-MIMO) system. Comprehensive simulation results are provided to show that P-MIMO system can substantially improve channel capacity in additive white Gaussian noise (AWGN), Rayleigh, and Rician fading channels. These three channel distributions are used in the simulations to observe the effect that each has on the P-MIMO system. Each channel exhibits different characteristics from other channels.