Channel Access in Wireless Smart Grid Networks Operating under ETSI Frame-Based Equipment Rules

Smart grid operators seeking to extend their wireless network capacity can use unlicensed bands. However, devices in these shared bands must follow rules such as Listen Before Talk (LBT), standardized by ETSI. In this paper, we focus on the performance of the frame-based equipment (FBE) version of L...

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Main Authors: Marcin Karcz, Szymon Szott
Format: Article
Language:English
Published: MDPI AG 2023-12-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/17/1/153
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author Marcin Karcz
Szymon Szott
author_facet Marcin Karcz
Szymon Szott
author_sort Marcin Karcz
collection DOAJ
description Smart grid operators seeking to extend their wireless network capacity can use unlicensed bands. However, devices in these shared bands must follow rules such as Listen Before Talk (LBT), standardized by ETSI. In this paper, we focus on the performance of the frame-based equipment (FBE) version of LBT channel access. We design, implement, and validate a fully functional FBE channel access simulator. Next, we conduct an extensive performance analysis of the FBE variants encountered in the literature, focusing on channel efficiency and fairness in upper-bound and coexistence scenarios. Our study leads to several conclusions about the operation of FBE-based devices, including the need for proper configuration of channel access parameters to ensure fairness and optimal performance. We also observe generally poor coexistence among FBE variants: the highest Jain’s fairness index was only 0.88, with an average normalized channel efficiency of 0.76. Therefore, we identify several open research areas in the field, such as the need for further development of parameter adaptation algorithms, the deployment of an external controller to update channel access parameters, and new FBE designs with better coexistence qualities.
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spelling doaj.art-1797010f076347da93c60c41bc3da57f2024-01-10T14:56:01ZengMDPI AGEnergies1996-10732023-12-0117115310.3390/en17010153Channel Access in Wireless Smart Grid Networks Operating under ETSI Frame-Based Equipment RulesMarcin Karcz0Szymon Szott1Institute of Telecommunications, Faculty of Computer Science, Electronics and Telecommunications, AGH University of Krakow, 30-059 Kraków, PolandInstitute of Telecommunications, Faculty of Computer Science, Electronics and Telecommunications, AGH University of Krakow, 30-059 Kraków, PolandSmart grid operators seeking to extend their wireless network capacity can use unlicensed bands. However, devices in these shared bands must follow rules such as Listen Before Talk (LBT), standardized by ETSI. In this paper, we focus on the performance of the frame-based equipment (FBE) version of LBT channel access. We design, implement, and validate a fully functional FBE channel access simulator. Next, we conduct an extensive performance analysis of the FBE variants encountered in the literature, focusing on channel efficiency and fairness in upper-bound and coexistence scenarios. Our study leads to several conclusions about the operation of FBE-based devices, including the need for proper configuration of channel access parameters to ensure fairness and optimal performance. We also observe generally poor coexistence among FBE variants: the highest Jain’s fairness index was only 0.88, with an average normalized channel efficiency of 0.76. Therefore, we identify several open research areas in the field, such as the need for further development of parameter adaptation algorithms, the deployment of an external controller to update channel access parameters, and new FBE designs with better coexistence qualities.https://www.mdpi.com/1996-1073/17/1/153channel accesswireless networksListen Before Talkunlicensed bands
spellingShingle Marcin Karcz
Szymon Szott
Channel Access in Wireless Smart Grid Networks Operating under ETSI Frame-Based Equipment Rules
Energies
channel access
wireless networks
Listen Before Talk
unlicensed bands
title Channel Access in Wireless Smart Grid Networks Operating under ETSI Frame-Based Equipment Rules
title_full Channel Access in Wireless Smart Grid Networks Operating under ETSI Frame-Based Equipment Rules
title_fullStr Channel Access in Wireless Smart Grid Networks Operating under ETSI Frame-Based Equipment Rules
title_full_unstemmed Channel Access in Wireless Smart Grid Networks Operating under ETSI Frame-Based Equipment Rules
title_short Channel Access in Wireless Smart Grid Networks Operating under ETSI Frame-Based Equipment Rules
title_sort channel access in wireless smart grid networks operating under etsi frame based equipment rules
topic channel access
wireless networks
Listen Before Talk
unlicensed bands
url https://www.mdpi.com/1996-1073/17/1/153
work_keys_str_mv AT marcinkarcz channelaccessinwirelesssmartgridnetworksoperatingunderetsiframebasedequipmentrules
AT szymonszott channelaccessinwirelesssmartgridnetworksoperatingunderetsiframebasedequipmentrules