Joint Optimization of Energy Efficiency and User Outage Using Multi-Agent Reinforcement Learning in Ultra-Dense Small Cell Networks

With the substantial increase in spatio-temporal mobile traffic, reducing the network-level energy consumption while satisfying various quality-of-service (QoS) requirements has become one of the most important challenges facing six-generation (6G) wireless networks. We herein propose a novel multi-...

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Main Authors: Eunjin Kim, Bang Chul Jung, Chan Yi Park, Howon Lee
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Electronics
Subjects:
Online Access:https://www.mdpi.com/2079-9292/11/4/599
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author Eunjin Kim
Bang Chul Jung
Chan Yi Park
Howon Lee
author_facet Eunjin Kim
Bang Chul Jung
Chan Yi Park
Howon Lee
author_sort Eunjin Kim
collection DOAJ
description With the substantial increase in spatio-temporal mobile traffic, reducing the network-level energy consumption while satisfying various quality-of-service (QoS) requirements has become one of the most important challenges facing six-generation (6G) wireless networks. We herein propose a novel multi-agent distributed Q-learning based outage-aware cell breathing (MAQ-OCB) framework to optimize energy efficiency (EE) and user outage jointly. Through extensive simulations, we demonstrate that the proposed MAQ-OCB can achieve the EE-optimal solution obtained by the exhaustive search algorithm. In addition, MAQ-OCB significantly outperforms conventional algorithms such as no transmission-power-control (No TPC), On-Off, centralized Q-learning based outage-aware cell breathing (C-OCB), and random-action algorithms.
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spelling doaj.art-0f423dc60c1a4fdc81d5d52fad341b572023-11-23T19:39:58ZengMDPI AGElectronics2079-92922022-02-0111459910.3390/electronics11040599Joint Optimization of Energy Efficiency and User Outage Using Multi-Agent Reinforcement Learning in Ultra-Dense Small Cell NetworksEunjin Kim0Bang Chul Jung1Chan Yi Park2Howon Lee3School of Electronic and Electrical Engineering and IITC, Hankyong National University, Anseong 17579, KoreaDepartment of Electronic Engineering, Chungnam National University, Deajeon 34134, KoreaAgency for Defense Development, Daejeon 34186, KoreaSchool of Electronic and Electrical Engineering and IITC, Hankyong National University, Anseong 17579, KoreaWith the substantial increase in spatio-temporal mobile traffic, reducing the network-level energy consumption while satisfying various quality-of-service (QoS) requirements has become one of the most important challenges facing six-generation (6G) wireless networks. We herein propose a novel multi-agent distributed Q-learning based outage-aware cell breathing (MAQ-OCB) framework to optimize energy efficiency (EE) and user outage jointly. Through extensive simulations, we demonstrate that the proposed MAQ-OCB can achieve the EE-optimal solution obtained by the exhaustive search algorithm. In addition, MAQ-OCB significantly outperforms conventional algorithms such as no transmission-power-control (No TPC), On-Off, centralized Q-learning based outage-aware cell breathing (C-OCB), and random-action algorithms.https://www.mdpi.com/2079-9292/11/4/599joint optimizationenergy-efficiencyuser outagecell breathingmulti-agent distributed Q-learningultra-dense small cell network
spellingShingle Eunjin Kim
Bang Chul Jung
Chan Yi Park
Howon Lee
Joint Optimization of Energy Efficiency and User Outage Using Multi-Agent Reinforcement Learning in Ultra-Dense Small Cell Networks
Electronics
joint optimization
energy-efficiency
user outage
cell breathing
multi-agent distributed Q-learning
ultra-dense small cell network
title Joint Optimization of Energy Efficiency and User Outage Using Multi-Agent Reinforcement Learning in Ultra-Dense Small Cell Networks
title_full Joint Optimization of Energy Efficiency and User Outage Using Multi-Agent Reinforcement Learning in Ultra-Dense Small Cell Networks
title_fullStr Joint Optimization of Energy Efficiency and User Outage Using Multi-Agent Reinforcement Learning in Ultra-Dense Small Cell Networks
title_full_unstemmed Joint Optimization of Energy Efficiency and User Outage Using Multi-Agent Reinforcement Learning in Ultra-Dense Small Cell Networks
title_short Joint Optimization of Energy Efficiency and User Outage Using Multi-Agent Reinforcement Learning in Ultra-Dense Small Cell Networks
title_sort joint optimization of energy efficiency and user outage using multi agent reinforcement learning in ultra dense small cell networks
topic joint optimization
energy-efficiency
user outage
cell breathing
multi-agent distributed Q-learning
ultra-dense small cell network
url https://www.mdpi.com/2079-9292/11/4/599
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