Performance Analysis of Zero-Forcing Precoding in Multi-Cell One-Bit Massive MIMO Downlink

Qurrat Ul Ain Nadeem, Anas Chaaban

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This work investigates the downlink performance of a multi-cell massive multiple-input multiple-output (MIMO) system that employs one-bit analog-to-digital converters (ADCs) and digital-to-analog converters (DACs) in the receiving and transmitting radio frequency (RF) chains at each base station (BS) in order to reduce the power consumption. We utilize Bussgang decomposition to derive the minimum mean squared error (MMSE) channel estimates at each BS based on the quantized received uplink training signals, and the asymptotic closed-form expressions of the achievable downlink rates under one-bit quantized zero-forcing (ZF) precoding implemented using the estimated channels. The derived expressions explicitly show the impact of quantization noise, thermal noise, pilot contamination, and interference, and are utilized to study the number of additional antennas needed at each BS of the one-bit MIMO system to perform as well as the conventional MIMO system. Numerical results verify our analysis, and reveal that despite needing more antennas to achieve the same sum average rate, the one-bit massive MIMO system is more energy-efficient than the conventional system, especially at high sampling frequencies.

Original languageEnglish (US)
Title of host publication2023 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages33-38
Number of pages6
ISBN (Electronic)9798350337822
DOIs
StatePublished - 2023
Event2023 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2023 - Istanbul, Turkey
Duration: Jul 4 2023Jul 7 2023

Publication series

Name2023 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2023

Conference

Conference2023 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2023
Country/TerritoryTurkey
CityIstanbul
Period7/4/237/7/23

Keywords

  • Bussgang decomposition
  • Multi-cell massive MIMO
  • ZF precoding
  • achievable rates
  • one-bit ADCs and DACs

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications
  • Computer Science Applications
  • Media Technology

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