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Time-Sensitive Networking's Scheduled Traffic Implementation on IEEE 802.11 COTS Devices

Fulltext:


Authors:

Pablo Gutiérrez Peón, Paraskevas Karachatzis , Wilfried Steiner , Elisabeth Uhlemann

Research group:

Data Communication

Publication Type:

Conference/Workshop Paper

Venue:

The 29th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications

Abstract

Wired real-time network deployments based on time-sensitive networking (TSN) are becoming increasingly popular in several application fields including industrial automation and the automotive area. This is to a great extent due to the scheduled traffic (ST; IEEE 802.1Qbv), a TSN mechanism that precisely triggers transmissions at pre-defined instants from a set of independent hardware queues. Unfortunately, the wireless counterparts based on IEEE 802.11 (Wi-Fi) currently lack standardized or functional solutions that would be able to fulfill strict real-time requirements. This work proposes the use of ST over IEEE 802.11, taking advantage of an existing but overlooked mechanism from commercial off-the-shelf (COTS) equipment. An extensive set of tests, spanning different implementation configurations, traffic patterns, and levels of interference evaluates the proposal in terms of reliability and delivery delays and serves as a proof of concept. The tests also evaluate the much-needed clock synchronization quality of an out-of-the-box software-only implementation of the precision time protocol (PTP) due to its relevance in enabling ST.

Bibtex

@inproceedings{Gutierrez Peon7013,
author = {Pablo Guti{\'e}rrez Pe{\'o}n and Paraskevas Karachatzis and Wilfried Steiner and Elisabeth Uhlemann},
title = {Time-Sensitive Networking's Scheduled Traffic Implementation on IEEE 802.11 COTS Devices},
editor = {IEEE Computer Society},
month = {September},
year = {2023},
booktitle = {The 29th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications},
url = {http://www.es.mdu.se/publications/7013-}
}