Q-Learning-Based Spatial Reuse Method Considering Throughput Fairness by Negative Reward for High Throughput

Mirai Takematsu, Shota Sakai, Masashi Kunibe, Hiroshi Shigeno

研究成果: Conference contribution

抄録

In this paper, we propose a Q-learning-based spatial reuse method considering throughput fairness in Wireless LANs (WLANs). In Spatial Reuse (SR) methods, wireless nodes try to use wireless resources efficiently by controlling both the Transmission Power (TP) and Carrier Sense Threshold (CST). When wireless nodes are densely deployed, the SR methods have difficulty to achieve both the high aggregate throughput and throughput fairness because the mutual interference among the wireless nodes becomes severe. The proposed method removes the difficulty by utilizing Q-learning where wireless nodes can learn the adequate CST and TP by themselves. The proposed method motivates nodes to use wireless resources actively by rewards, while it suppresses nodes with high throughput using the resources by negative rewards. As a result, the wireless resources are distributed among nodes with low throughput, and the proposed method achieves both the high aggregate throughput and throughput fairness. Simulation results show that the proposed method improves the aggregate throughput with keeping throughput fairness.

本文言語English
ホスト出版物のタイトルMobile and Ubiquitous Systems
ホスト出版物のサブタイトルComputing, Networking and Services
編集者Takahiro Hara, Hirozumi Yamaguchi
出版社Springer Science and Business Media Deutschland GmbH
ページ207-219
ページ数13
ISBN(印刷版)9783030948214
DOI
出版ステータスPublished - 2022
イベント18th EAI International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services, MobiQuitous 2021 - Virtual, Online
継続期間: 2021 11月 82021 11月 11

出版物シリーズ

名前Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
419 LNICST
ISSN(印刷版)1867-8211
ISSN(電子版)1867-822X

Conference

Conference18th EAI International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services, MobiQuitous 2021
CityVirtual, Online
Period21/11/821/11/11

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信

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