Performance Analysis and Optimization for RIS-Assisted Multi-User Massive MIMO Systems with Imperfect Hardware

08/17/2022
by   Zhangjie Peng, et al.
0

The paper studies a reconfigurable intelligent surface (RIS)-assisted multi-user uplink massive multiple-input multiple-output (MIMO) system with imperfect hardware. At the RIS, the paper considers phase noise, while at the base station, the paper takes into consideration the radio frequency impairments and low-resolution analog-to-digital converters. The paper derives approximate expressions for the ergodic achievable rate in closed forms under Rician fading channels. For the cases of infinite numbers of antennas and infinite numbers of reflecting elements, asymptotic data rates are derived to provide new design insights. The derived power scaling laws indicate that while guaranteeing a required system performance, the transmit power of the users can be scaled down at most by the factor 1/M when M goes infinite, or by the factor 1/(MN) when M and N go infinite, where M is the number of antennas and N is the number of the reflecting units. Furthermore, an optimization algorithm is proposed based on the genetic algorithm to solve the phase shift optimization problem with the aim of maximizing the sum rate of the system. Additionally, the optimization problem with discrete phase shifts is considered. Finally, numerical results are provided to validate the correctness of the analytical results.

READ FULL TEXT

page 4

page 5

page 6

page 7

page 8

page 9

page 10

page 14

research
10/13/2021

Statistical CSI-Based Transmission Design for Reconfigurable Intelligent Surface-aided Massive MIMO Systems with Hardware Impairments

We consider a reconfigurable intelligent surface (RIS)-aided massive mul...
research
11/02/2021

Is RIS-Aided Massive MIMO Promising with ZF Detectors and Imperfect CSI?

This paper provides a theoretical framework for understanding the perfor...
research
03/16/2021

Reconfigurable Intelligent Surface aided Massive MIMO Systems with Low-Resolution DACs

We investigate a reconfigurable intelligent surface (RIS)-aided multi-us...
research
01/28/2020

Performance Analysis of MIMO K-user Interference Channels with Hardware Impairments

Next generation of wireless systems will employ many antenna branches wi...
research
06/24/2019

On the Performance of Massive MIMO Systems With Low-Resolution ADCs Over Rician Fading Channels

This paper considers uplink massive multiple-input multiple-output (MIMO...
research
03/16/2022

RIS Partitioning Based Scalable Beamforming Design for Large-Scale MIMO: Asymptotic Analysis and Optimization

In next-generation wireless networks, reconfigurable intelligent surface...
research
05/29/2020

On Uplink Performance of Multiuser Massive MIMO Relay Network With Limited RF Chains

This paper considers a multiuser massive multiple-input multiple-output ...

Please sign up or login with your details

Forgot password? Click here to reset