Year-end Sale % OFF 
Abstract
We consider a hybrid beamforming system, where the overall beamformer consists of a low-dimensional baseband beamformer and an radio frequency (RF) beamformer implemented by using analog phase shifters. In practice, the analog phase shifters are imperfect and are controlled with several quantized phases. This makes the channel estimation difficult in codebook-based beamforming schemes. In this paper, we propose a new codebook-based beamforming scheme to address the challenge of the quantized phase shifters. The fundamental idea is to design new codebook beams by logically separating a full antenna array into some subarrays and by mirroring a half of weights of subarrays from the rest weights. Numerical results show that the proposed scheme outperforms the conventional scheme using discrete Fourier transform (DFT) beams.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
