Reverse Link Analysis for Full-Duplex Cellular Networks with Low Resolution ADC/DAC

TL;DR

This paper analyzes the uplink performance of full-duplex massive MIMO cellular networks with low-resolution ADCs/DACs, providing a unified framework and quantifying effects on spectral efficiency.

Contribution

It introduces a unified reverse link analysis framework for FD MIMO networks with low-resolution converters and derives SQINR expressions for various scenarios.

Findings

FD outperforms HD in spectral efficiency across many scenarios

Quantization error and pilot contamination significantly impact performance

The framework applies to hexagonal cell layouts

Abstract

In this work, we consider a full-duplex (FD) massive multiple-input multiple-output (MIMO) cellular network with low-resolution analog-to-digital converters (ADCs) and digital-to-analog converter (DACs). Our first contribution is to provide a unified framework for reverse link (uplink) analysis where matched filters are applied at the FD base stations (BSs) under channel hardening. Second, we derive the expressions of the signal-to-quantization-plus-interference-plus-noise ratio (SQINR) for general and special cases. Finally, we quantify effects of quantization error, pilot contamination, and full duplexing for a hexagonal cell lattice on spectral efficiency and cumulative distribution function (CDF) to show that FD outperforms half duplex (HD) in a wide variety of scenarios.