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.
@article{arxiv.2202.00566,
title = {Full-Duplex Wideband mmWave Integrated Access and Backhaul with Low Resolution ADCs},
author = {Elyes Balti and Brian L. Evans},
journal= {arXiv preprint arXiv:2202.00566},
year = {2022}
}