Beamforming Scheme for MIMO Relay Based 5G and beyond Wireless Network

In this paper, in order to attain the maximum ergodic capacity and significantly increase spectral efficiency of wireless communication systems, novel linear beamforming is proposed for dual-hop amplify-and-forward (AF) multi-relay networks. The designed based on maximization signal-to-interference-plus-noise ratio (SINR) signal-to- leakage-and-noise (SLNR). channel state information (CSI) used applying new design (MR) nodes between source relays as well destination. optimization problem solved by using Fukunaga-Koontz Transform (FKT). scheme can achieve intra-node array distributed gains multiple antennas multi-relays (MRs). performance demonstrates that considering interference mitigation criteria at a significant level improved compared conventional techniques. Therefore, techniques signal-to-leakage-and-noise (SLNR) relay processing outperform other case network terms ergodic.