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Open AccessArticle

What Is the Fastest Way to Connect Stations to a Wi-Fi HaLow Network?

1
Institute for Information Transmission Problems, Russian Academy of Sciences, 127051 Moscow, Russia
2
Telecommunication Systems Lab, National Research University Higher School of Economics, 101000 Moscow, Russia
3
IDLab, Department of Mathematics and Computer Science, University of Antwerp-Imec, 2020 Antwerp, Belgium
*
Author to whom correspondence should be addressed.
Sensors 2018, 18(9), 2744; https://doi.org/10.3390/s18092744
Received: 21 May 2018 / Revised: 7 August 2018 / Accepted: 18 August 2018 / Published: 21 August 2018
(This article belongs to the Special Issue QoS in Wireless Sensor Networks)
Wi-Fi HaLow is an adaptation of the widespread Wi-Fi technology for the Internet of Things scenarios. Such scenarios often involve numerous wireless stations connected to a shared channel, and contention for the channel significantly affects the performance in such networks. Wi-Fi HaLow contains numerous solutions aimed at handling the contention between stations, two of which, namely, the Centralized Authentication Control (CAC) and the Distributed Authentication Control (DAC), address the contention reduction during the link set-up process. The link set-up process is special because the access point knows nothing of the connecting stations and its means of control of these stations are very limited. While DAC is self-adaptive, CAC does require an algorithm to dynamically control its parameters. Being just a framework, the Wi-Fi HaLow standard neither specifies such an algorithm nor recommends which protocol, CAC or DAC, is more suitable in a given situation. In this paper, we solve both issues by developing a novel robust close-to-optimal algorithm for CAC and compare CAC and DAC in a vast set of experiments. View Full-Text
Keywords: Internet of Things; IEEE 802.11ah; Wi-Fi HaLow; authentication; link set-up Internet of Things; IEEE 802.11ah; Wi-Fi HaLow; authentication; link set-up
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Bankov, D.; Khorov, E.; Lyakhov, A.; Stepanova, E.; Tian, L.; Famaey, J. What Is the Fastest Way to Connect Stations to a Wi-Fi HaLow Network? Sensors 2018, 18, 2744.

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