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

TL;DR

This paper analyzes full-duplex massive MIMO cellular networks with low-resolution ADCs/DACs, deriving SQINR expressions and demonstrating that FD can outperform HD in spectral efficiency across various scenarios.

Contribution

It introduces a unified framework for forward link analysis with matched filter precoders in FD MIMO networks considering low-resolution converters.

Findings

FD outperforms HD in spectral efficiency in many scenarios

Quantization error and pilot contamination significantly impact performance

Derived SQINR expressions for general and special cases

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 converters (DACs). Our first contribution is to propose a unified framework for forward link analysis where matched filter precoders are applied at the FD base stations (BSs) under channel hardening. Second, we derive expressions for 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.