A significant step towards omnipresent communication systems and frictionless high-quality wireless connectivity will be made by the next wireless communications. Having dual-polarized antennas just at base station and consumers, an enormous MIMO system based on a single cell is considered in this research. We examine a dual-polarization channel model which takes into consideration a number of practical problems like cross-polar correlation (XPC), cross-polar discrimination (XPD) at the receiver and transmitter. We evaluate the potential spectral efficiency of either uplink or downlink (SE), as well as without consecutive interference cancellation, for such zero-forcing, linear minimal mean squared error, combining/precoding schemes (SIC) and maximum ratio (MR). Here, we analytically contrast the configurations of the uni-polarized and dual-polarized antennas. Evaluation is done on downlink and uplink spectral efficiencies. The equation demonstrates how using polarization region can boost the multiplexing gain. We note that a dual-polarized array having half as many antennas has the exact dimensions, beamforming gain by polarization as uni-polarized array. As a result, size can also be decreased while the SE is maintained or enhanced.