Enhancing hybrid beamforming technology in 5G-NR systems using low-complexity hybrid precoding scheme

Abstract

Hybrid beamforming technology is one of the most important keys in 5G-NR systems, the main goal is  to compensate the high path-loss for high mil

limeter frequencies used. It depends on using A hybrid precoder at the transmitter and a hybrid combiner at the receiver. This research demonstrates the possibility of enhancing  the performance of the 5G-NR system by  using the idea of deriving the phases of the analog precoding phase from the optimal fully digital precoder, That’s without use unnecessary additional analytical processes or complex operations , which reduces system complexity and improves system spectral efficiency, especially when the number of data streams is less than the number of radio chains. The results of the numerical analysis of the proposed algorithm show the possibility of reaching an acceptable performance comparing the complete digital system performance, and close to the performance of the newly proposed algorithms, while reducing the cost and complexity.