Analytical Evaluation of BER Considering Effect of Cross-Polarization in a Polarization Diversity 4×4 MIMO Satellite to Ground Link

An analytical evaluation of Bit Error Rate (BER) performance considering the effect of cross-polarization under 4×4 polarization diversity MIMO (Multiple Input Multiple Output) from satellite to ground is modeled. The BER equation is derived using Rician k-factors and SINR (Signal to Interference plus Noise Ratio). A comprehensive simulation is performed for evaluating BER performance, Receiver sensitivity and power penalty in four areas namely Open Area (OA), Sub-urban Area(SA), Urban Area(UA), Aeronautical/Marine Area(A/M A). Then, BER is evaluated in four areas and simulation results reveal that all the four schemes under the proposed framework suffers power penalty. To the end, it is found that SA and UA schemes experiences higher power penalty in 4×4 MIMO over 2×2 MIMO configuration.