2022/01/24 by Elyes Balti, Brian L. Evans, Balti, Elyes +1
Engineering · #Full-Duplex Wireless Communications #Microwave Engineering and Waveguides #Electromagnetic Compatibility and Measurements
paper · pdf · doi:10.48550/arxiv.2202.00566
We consider a wideband integrated access and backhaul system operating in full-duplex mode between the New Radio gNB donor and single user equipment. Due to high power consumption in millimeter wave systems, we use low-resolution analog-to-digital converters (ADCs) in the receivers. Our contributions include (1) hybrid beamformer to maximize sum spectral efficiency of the access and backhaul links by canceling self-interference and maximizing received power; (2) all-digital beamformer and upper bound on sum spectral efficiency; and (3) simulations to compare full vs. half duplex, finite vs. infinite ADC resolution, hybrid vs. all-digital beamforming, and the upper bound in spectral efficiency.