An Effective Kalman Based Hybrid Beamforming for Millimeter Wave Massive MIMO System by Using 2D Overlapped Partially Connected Sub-Array Structure

In 5G mobile communication networks, millimeter-wave (mmWave) technology plays a key role. To deal with the problem of path loss that happens in mmWave band, competent beamforming employing large antenna array is required. Fully digital approaches currently require separate radio frequency chains (RF chains) for each antenna, which adds to computational complexity and hardware expense. multi-user environment, fully suffers from larger layout, whereas analog solutions are prone numerous performance concerns. Hybrid beamforming, on other hand, offers promising solution communication. This work proposes two-dimensional overlapping partially connected (2D-OPC) sub-array structure reduce structure's cost. The suggested technique comprises several sub-arrays overlapped 2D space form Uniform Planar Array (UPA). scheme's assessed using Kalman-based hybrid exhibits considerable increase spectral efficiency when compared existing techniques. technique, uses Kalman based 2D-OPC provides 3.14% 4.96% improvement over MMSE ZF pre-coding respectively.