Design of Full-Duplex Millimeter-Wave Integrated Access and Backhaul Networks

01/08/2021
by   Junkai Zhang, et al.
0

One of the key technologies for the future cellular networks is full-duplex (FD) enabled Integrated Access and Backhaul (IAB) networks operating in the millimeter-wave (mmWave) frequencies. The main challenge in realizing the FD-IAB networks is mitigating the impact of self-interference (SI) in the wideband mmWave frequencies. In this article, we first introduce the 3GPP IAB network architectures and wideband mmWave channel models. By utilizing the subarray-based hybrid precoding scheme, at the FD-IAB-node, multiuser interference is mitigated using zero-forcing (ZF) at the transmitter, whereas the residual SI after successfully deploying antenna and analog cancellation is canceled by minimum mean square error (MMSE) baseband combiner at the receiver. The spectral efficiency (SE) is evaluated for the RF insertion loss (RFIL) with different kinds of phase shifters and the channel uncertainty. Simulation results show that, in the presence of the RFIL, the almost double SE, which is close to that obtained from fully connected hybrid precoding, can be achieved as compared with half-duplex systems, when the uncertainties are of low strength.

READ FULL TEXT

page 1

page 2

page 3

page 4

research
05/21/2018

Over-Sampling Codebook-Based Hybrid Minimum Sum-Mean-Square-Error Precoding for Millimeter-Wave 3D-MIMO

Hybrid precoding design is challenging for millimeter-wave (mmWave) mass...
research
01/24/2021

Design and Analysis of Wideband Full-Duplex FR2-IAB Networks

This paper develops a 3GPP inspired design for the in-band-full-duplex (...
research
02/14/2021

Max-Min Fair Hybrid Precoding for Multi-group Multicasting in Millimeter-Wave Channel

The potential of using millimeter-wave (mmWave) to encounter the current...
research
09/10/2018

Machine Learning Based Hybrid Precoding for MmWave MIMO-OFDM with Dynamic Subarray

Hybrid precoding design can be challenging for broadband millimeter-wave...
research
07/12/2018

Verification and Calibration of Antenna Cross-Polarization Discrimination and Penetration Loss for Millimeter Wave Communications

This article presents measurement guidelines and verification procedures...
research
01/22/2019

MIMO-UFMC Transceiver Schemes for Millimeter Wave Wireless Communications

The UFMC modulation is among the most considered solutions for the reali...
research
03/22/2019

Robust Hybrid Precoding for Beam Misalignment in Millimeter-Wave Communications

In this paper, we focus on the phenomenon of beam misalignment in Millim...

Please sign up or login with your details

Forgot password? Click here to reset