Performance Evaluation of 5G Delay-Sensitive Single-Carrier Multi-User Downlink Scheduling

Anjali Omer, Filippo Malandra, Jacob Chakareski, Nicholas Mastronarde

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

Abstract

The coexistence of a wide variety of different applications with diverse Quality of Service (QoS) requirements calls for more sophisticated radio resource scheduling (RRS) in 5G networks compared to previous generations. To address this challenge, a growing body of research formulates the RRS problem as a Markov decision process (MDP) and aims to solve it using deep reinforcement learning (DRL). A key consideration when formulating an MDP is the choice of reward function, which determines the goal of the decision agent. Despite the reward function being a critical component of an MDP, there is currently no systematic study comparing how different reward functions affect network performance. To this end, we carry out a comparative study of the delay and overflow performance using several reward functions that aim to minimize packet delays. Through extensive simulations under different traffic and channel conditions, we identify a reward function that can achieve near optimal delay with up to 55 - 67% fewer packet drops than the other investigated options, and does not require any tuning.

Original languageEnglish (US)
Title of host publication2023 IEEE 34th Annual International Symposium on Personal, Indoor and Mobile Radio Communications
Subtitle of host publication6G The Next Horizon - From Connected People and Things to Connected Intelligence, PIMRC 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665464833
DOIs
StatePublished - 2023
Event34th IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2023 - Toronto, Canada
Duration: Sep 5 2023Sep 8 2023

Publication series

NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC

Conference

Conference34th IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2023
Country/TerritoryCanada
CityToronto
Period9/5/239/8/23

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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