Outage Performance Analysis of Dual-Polarized Fluid Antenna Systems

In this paper, we consider a point-to-point dual-polarized fluid antenna system (FAS), where the transmitter is equipped with two separated orthogonally-polarized antennas and the receiver is equipped with aN-ports dual-polarized fluid antenna. The dual-polarized FAS channel model, which takes into account the cross-polar discrimination (XPD) and cross-polar correlations (XPC) as polarization characteristics, has been considered. Then, the outage probability under the exact correlated channel in the multi-integration expression is given, and based on this, the closed-form outage probability under the approximate correlated channel is derived. The simulation results demonstrate the influence of XPC and XPD on outage probability.