Unfairness of Random Access with Collision Avoidance in Industrial Internet of Things Networks

This paper is focused on the analysis of unfairness of random media access in Local Operating Networks (LON), which is one of the commercial platforms of the Industrial Internet of Things (IIoT). The unfairness in accessing the LON channel is introduced by a collision avoidance mechanism in the pred...

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Autor principal:	Marek Miśkowicz
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	industrial internet of things access protocols carrier sense multiaccess memoryless backoff modeling communication system performance Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/7e9a6d05cd774306ae54e5c43443be8f
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spelling	oai:doaj.org-article:7e9a6d05cd774306ae54e5c43443be8f2021-11-11T19:08:03ZUnfairness of Random Access with Collision Avoidance in Industrial Internet of Things Networks10.3390/s212171351424-8220https://doaj.org/article/7e9a6d05cd774306ae54e5c43443be8f2021-10-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/21/7135https://doaj.org/toc/1424-8220This paper is focused on the analysis of unfairness of random media access in Local Operating Networks (LON), which is one of the commercial platforms of the Industrial Internet of Things (IIoT). The unfairness in accessing the LON channel is introduced by a collision avoidance mechanism in the predictive <i>p</i>-persistent CSMA protocol adopted at the media access control layer. The study on the bandwidth share in predictive <i>p</i>-persistent CSMA calls for the analysis of multiple memoryless backoff. In this paper, it is shown that the channel access in LON systems is unfair in the short term for medium traffic load conditions, and in the long term for heavy loaded networks. Furthermore, it is explained that the average bandwidth allocated to a particular node is determined implicitly by the load scenario, while an actual node bandwidth fluctuates in time according to stochastic dynamics of the predictive <i>p</i>-persistent CSMA. Next, it is formally proven that the average bandwidth available to a node is a linear function of its backoff state and does not depend on backoff states of the other stations. Finally, it is demonstrated that possibly unfair bandwidth share in LON networks determined implicitly by load scenario is stable because, with lowering a fraction of actual network bandwidth accessible by a given station, the probability to decrease it in the future also drops.Marek MiśkowiczMDPI AGarticleindustrial internet of thingsaccess protocolscarrier sense multiaccessmemoryless backoffmodelingcommunication system performanceChemical technologyTP1-1185ENSensors, Vol 21, Iss 7135, p 7135 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	industrial internet of things access protocols carrier sense multiaccess memoryless backoff modeling communication system performance Chemical technology TP1-1185
spellingShingle	industrial internet of things access protocols carrier sense multiaccess memoryless backoff modeling communication system performance Chemical technology TP1-1185 Marek Miśkowicz Unfairness of Random Access with Collision Avoidance in Industrial Internet of Things Networks
description	This paper is focused on the analysis of unfairness of random media access in Local Operating Networks (LON), which is one of the commercial platforms of the Industrial Internet of Things (IIoT). The unfairness in accessing the LON channel is introduced by a collision avoidance mechanism in the predictive <i>p</i>-persistent CSMA protocol adopted at the media access control layer. The study on the bandwidth share in predictive <i>p</i>-persistent CSMA calls for the analysis of multiple memoryless backoff. In this paper, it is shown that the channel access in LON systems is unfair in the short term for medium traffic load conditions, and in the long term for heavy loaded networks. Furthermore, it is explained that the average bandwidth allocated to a particular node is determined implicitly by the load scenario, while an actual node bandwidth fluctuates in time according to stochastic dynamics of the predictive <i>p</i>-persistent CSMA. Next, it is formally proven that the average bandwidth available to a node is a linear function of its backoff state and does not depend on backoff states of the other stations. Finally, it is demonstrated that possibly unfair bandwidth share in LON networks determined implicitly by load scenario is stable because, with lowering a fraction of actual network bandwidth accessible by a given station, the probability to decrease it in the future also drops.
format	article
author	Marek Miśkowicz
author_facet	Marek Miśkowicz
author_sort	Marek Miśkowicz
title	Unfairness of Random Access with Collision Avoidance in Industrial Internet of Things Networks
title_short	Unfairness of Random Access with Collision Avoidance in Industrial Internet of Things Networks
title_full	Unfairness of Random Access with Collision Avoidance in Industrial Internet of Things Networks
title_fullStr	Unfairness of Random Access with Collision Avoidance in Industrial Internet of Things Networks
title_full_unstemmed	Unfairness of Random Access with Collision Avoidance in Industrial Internet of Things Networks
title_sort	unfairness of random access with collision avoidance in industrial internet of things networks
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/7e9a6d05cd774306ae54e5c43443be8f
work_keys_str_mv	AT marekmiskowicz unfairnessofrandomaccesswithcollisionavoidanceinindustrialinternetofthingsnetworks
_version_	1718431593758982144

Unfairness of Random Access with Collision Avoidance in Industrial Internet of Things Networks

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