Towards 6G: An Analysis of the Prospects for MAC Protocols

Francine Oliveira, Iury Da Silva Batalha, Lívia Christinie Teles, Lucas Pereira, Adriely Lúcia Brandelli

DOI: 10.14209/sbrt.2024.1571036801

Evento: XLII Simpósio Brasileiro de Telecomunicações e Processamento de Sinais (SBrT2024)

Keywords: 6G MAC layer CSI AMC

Abstract

Wireless networks are constantly evolving and sixth-generation networks are already being prepared for launch in 2030. The emergence of 6G will require networks to offer superior capabilities compared to 5G, particularly in the areas of physical (PHY) and Medium Access Control (MAC) layers, especially when considering applications such as massive MIMO (mMIMO), TeraHertz waves (THz), random access, energy efficiency, and radio access via non-terrestrial Network (NTN). This article aims to address proposals for improvement in the MAC layer for 6G networks. It covers topics related to the use of Machine Learning (ML) and Deep Learning (DL) for estimating the Channel State Information (CSI) report and reducing signaling overhead. Additionally, it discusses the main challenges and proposed solutions in using Dynamic Spectrum Sharing (DSS) and Multi-RAT spectrum sharing (MRSS) for smoothing transitions from 5G to 6G networks and solutions to optimize Adaptive Coding and Modulation (AMC) for millimeter waves (mmWaves) and THz networks.

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