Optimal Practical Design and Reduced Complexity of 6G sub-Terahertz Wireless Backhaul Networks

Abstract

With the 6G being required to deliver data rates exceeding 100 Gbps for a single user, suitable wireless backhaul networks should be properly designed to carry these data to the backhaul network. In this paper, the complexity and practical aspects of designing these links in the sub-terahertz band with hardware power limitations, frequency selectivity, severe path loss, beam misalignment, coupling and noise figure losses are addressed with optimal power allocation where a new reduced complexity power allocation algorithm is proposed to realize faster data processing and lower computational delay and we investigate the effect of these factors on the system performance. The bit-rate achieved is expected to exceed 1 Tbps for 1 km using practical antennas and practically realized power sources from the literature.