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Enabling Real-Time Quality-of-Service and Fine-Grained Aggregation for Wireless TSN.
Zhang, Litianyi; Gu, Yifan; Wang, Rui; Yu, Kan; Pang, Zhibo; Li, Yonghui; Vucetic, Branka.
Afiliación
  • Zhang L; School of Electrical and Information Engineering, The University of Sydney, Sydney, NSW 2006, Australia.
  • Gu Y; School of Electrical and Information Engineering, The University of Sydney, Sydney, NSW 2006, Australia.
  • Wang R; School of Electrical and Information Engineering, The University of Sydney, Sydney, NSW 2006, Australia.
  • Yu K; Department of Computer Science and Information Technology, La Trobe University, Bendigo, VIC 3552, Australia.
  • Pang Z; Department of Automation Technology, ABB Corporate Research Sweden, 72178 Vasteras, Sweden.
  • Li Y; Department of Intelligent Systems, Royal Institute of Technology (KTH), 10044 Stockholm, Sweden.
  • Vucetic B; School of Electrical and Information Engineering, The University of Sydney, Sydney, NSW 2006, Australia.
Sensors (Basel) ; 22(10)2022 May 20.
Article en En | MEDLINE | ID: mdl-35632308
Wireless Time-Sensitive Networking (WTSN) has emerged as a promising technology for Industrial Internet of Things (IIoT) applications. To meet the latency requirements of WTSN, wireless local area network (WLAN) such as IEEE 802.11 protocol with the time division multiple access (TDMA) mechanism is shown to be a practical solution. In this paper, we propose the RT-WiFiQA protocol with two novel schemes to improve the latency and reliability performance: real-time quality of service (RT-QoS) and fine-grained aggregation (FGA) for TDMA-based 802.11 systems. The RT-QoS is designed to guarantee the quality-of-service requirements of different traffic and to support the FGA mechanism. The FGA mechanism aggregates frames for different stations to reduce the physical layer transmission overhead. The trade-off between the reliability and FGA packet size is analyzed with numerical results. Specifically, we derive a critical threshold such that the FGA can achieve higher reliability when the aggregated packet size is smaller than the critical threshold. Otherwise, the non-aggregation scheme outperforms the FGA scheme. Extensive experiments are conducted on the commercial off-the-shelf 802.11 interface. The experiment results show that compared with the existing TDMA-based 802.11 system, the developed RT-WiFiQA protocol can achieve deterministic bounded real-time latency and greatly improves the reliability performance.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Guideline Idioma: En Revista: Sensors (Basel) Año: 2022 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Guideline Idioma: En Revista: Sensors (Basel) Año: 2022 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Suiza