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Fifth-generation (5G)cellular communication systems aim to obtain a higher data rate, decreasedlatency time, higher performance even at high mobility speeds, decreased systemcomplexity, lower transmission cost, and an increased system capacity andcoverage area. Many of these goals can be achieved because of the studiesdevoted to the physical layer of 5G cellular networks. In this respect,solutions to the problems of beamforming (steering and precoding or precodingand combining) and channel estimation that are encountered in the physical layerof 5G cellular networks are the key points to achieve the aforementioned goals.Thus, a two-stage beamforming method is proposed in this study. The proposedmethod is a suboptimal method that minimizes the difference between outputsobtained when fully digital and hybrid beamforming methods are used. Theanalytical results, which are validated through simulations, demonstrate thatthe proposed method is an effective solution and, hence, the preferredbeamforming approach for 5G millimeter wave band-based wireless systems.