# User Detection Performance Analysis for Grant-Free Uplink Transmission in Large-Scale Antenna Systems

## TL;DR

This paper analyzes user detection performance in grant-free uplink transmission within large-scale antenna systems, evaluating false alarm probabilities for different detection schemes using Zadoff-Chu sequences.

## Contribution

It provides a comprehensive analysis of user detection performance and false alarm probabilities in grant-free uplink systems with large antenna arrays, considering various detection schemes.

## Key findings

- False alarm probabilities are quantified for different detection schemes.
- Performance evaluation under various target detection probabilities.
- Use of Zadoff-Chu sequences enhances uplink pilot performance.

## Abstract

In this paper, user detection performance of a grant-free uplink transmission in a large scale antenna system is analyzed, in which a general grant-free multiple access is considered as the system model and Zadoff-Chu sequence is used for the uplink pilot. The false alarm probabilities of various user detection schemes under the target detection probabilities are evaluated.