Seamless Link-level Redundancy to Improve Reliability of Industrial Wi-Fi Networks

Autor: Stefano Scanzio, Adriano Valenzano, Gianluca Cena
Jazyk: angličtina
Rok vydání: 2022
Předmět:
FOS: Computer and information sciences
redundant transmission
Wi-Fi array
Inter-Access Point Protocol
Orthogonal frequency-division multiplexing
Computer science
02 engineering and technology
Wireless LAN controller
Computer Science - Networking and Internet Architecture
0202 electrical engineering
electronic engineering
information engineering
Redundancy (engineering)
Wireless
Electrical and Electronic Engineering
Fixed wireless
Wi-Fi
Networking and Internet Architecture (cs.NI)
Network packet
business.industry
Wireless network
industrial communications
020208 electrical & electronic engineering
020206 networking & telecommunications
Computer Science Applications
fault-tolerance
Wireless site survey
Key distribution in wireless sensor networks
Control and Systems Engineering
Link level
business
Random access
Information Systems
Computer network
Zdroj: IEEE transactions on industrial informatics (Online) 12 (2016): 608–620. doi:10.1109/TII.2016.2522768
info:cnr-pdr/source/autori:G. Cena, S. Scanzio, A. Valenzano/titolo:Seamless Link-Level Redundancy to Improve Reliability of Industrial Wi-Fi Networks/doi:10.1109%2FTII.2016.2522768/rivista:IEEE transactions on industrial informatics (Online)/anno:2016/pagina_da:608/pagina_a:620/intervallo_pagine:608–620/volume:12
DOI: 10.1109/TII.2016.2522768
Popis: The adoption of wireless communications and, in particular, Wi-Fi, at the lowest level of the factory automation hierarchy has not increased as fast as expected so far, mainly because of serious issues concerning determinism. Actually, besides the random access scheme, disturbance and interference prevent reliable communication over the air and, as a matter of fact, make wireless networks unable to support distributed real-time control applications properly. Several papers recently appeared in the literature suggest that diversity could be leveraged to overcome this limitation effectively. In this paper a reference architecture is introduced, which describes how seamless link-level redundancy can be applied to Wi-Fi. The framework is general enough to serve as a basis for future protocol enhancements, and also includes two optimizations aimed at improving the quality of wireless communication by avoiding unnecessary replicated transmissions. Some relevant solutions have been analyzed by means of a thorough simulation campaign, in order to highlight their benefits when compared to conventional Wi-Fi. Results show that both packet losses and network latencies improve noticeably.
preprint, 13 pages (Winner of the "2017 Best Paper Award for the IEEE Transactions on Industrial Informatics")
Databáze: OpenAIRE
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