Joint Optimization of Uplink and Downlink Power in Full-Duplex Integrated Access and Backhaul
Journal:
arXiv
Published Date:
Apr 5, 2025
Abstract
We examine the performance of an Integrated Access and Backhaul (IAB) node as
a range extender for beyond-5G networks, focusing on the significant challenges
of effective power allocation and beamforming strategies, which are vital for
maximizing users' spectral efficiency (SE). We present both max-sum SE and
max-min fairness power allocation strategies, to assess their effects on system
performance. The results underscore the necessity of power optimization,
particularly as the number of users served by the IAB node increases,
demonstrating how efficient power allocation enhances service quality in
high-load scenarios. The results also show that the typical line-of-sight link
between the IAB donor and the IAB node has rank one, posing a limitation on the
effective SEs that the IAB node can support.
