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On the Benefits of Listen before Talk Scheme for NB-Fi Networks
NB-Fi (Narrow Band Fidelity) is a promising protocol for low-power wide-area networks. NB-Fi networks use license-exempt Industrial, Scientific, and Medical (ISM) bands and, thus, NB-Fi devices can work in two modes: with and without Listen Before Talk (LBT). This paper compares these modes with dif...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10675225/ https://www.ncbi.nlm.nih.gov/pubmed/38005441 http://dx.doi.org/10.3390/s23229054 |
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author | Pavlova, Irina Bankov, Dmitry Khorov, Evgeny Lyakhov, Andrey |
author_facet | Pavlova, Irina Bankov, Dmitry Khorov, Evgeny Lyakhov, Andrey |
author_sort | Pavlova, Irina |
collection | PubMed |
description | NB-Fi (Narrow Band Fidelity) is a promising protocol for low-power wide-area networks. NB-Fi networks use license-exempt Industrial, Scientific, and Medical (ISM) bands and, thus, NB-Fi devices can work in two modes: with and without Listen Before Talk (LBT). This paper compares these modes with different implementations of LBT in terms of packet loss rate (PLR), delay, energy consumption, and throughput. Interestingly, in some scenarios, the results contradict expectations from the classic papers on channel access because of the peculiarities of the NB-Fi technology. These contradictions are explained in the paper. The results show that LBT can significantly improve all the considered performance indicators when the network load exceeds 40 packets per second. With extensive simulation, we show that in a small NB-Fi network, the optimal PLR, delay, and energy consumption are obtained with the implementation of LBT that corresponds to non-persistent CSMA. In a large NB-Fi network, where some devices can be hidden from others, the best strategy to improve PLR, delay, throughput, and energy consumption is to use the implementation of LBT that corresponds to p-persistent CSMA. |
format | Online Article Text |
id | pubmed-10675225 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-106752252023-11-08 On the Benefits of Listen before Talk Scheme for NB-Fi Networks Pavlova, Irina Bankov, Dmitry Khorov, Evgeny Lyakhov, Andrey Sensors (Basel) Article NB-Fi (Narrow Band Fidelity) is a promising protocol for low-power wide-area networks. NB-Fi networks use license-exempt Industrial, Scientific, and Medical (ISM) bands and, thus, NB-Fi devices can work in two modes: with and without Listen Before Talk (LBT). This paper compares these modes with different implementations of LBT in terms of packet loss rate (PLR), delay, energy consumption, and throughput. Interestingly, in some scenarios, the results contradict expectations from the classic papers on channel access because of the peculiarities of the NB-Fi technology. These contradictions are explained in the paper. The results show that LBT can significantly improve all the considered performance indicators when the network load exceeds 40 packets per second. With extensive simulation, we show that in a small NB-Fi network, the optimal PLR, delay, and energy consumption are obtained with the implementation of LBT that corresponds to non-persistent CSMA. In a large NB-Fi network, where some devices can be hidden from others, the best strategy to improve PLR, delay, throughput, and energy consumption is to use the implementation of LBT that corresponds to p-persistent CSMA. MDPI 2023-11-08 /pmc/articles/PMC10675225/ /pubmed/38005441 http://dx.doi.org/10.3390/s23229054 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Pavlova, Irina Bankov, Dmitry Khorov, Evgeny Lyakhov, Andrey On the Benefits of Listen before Talk Scheme for NB-Fi Networks |
title | On the Benefits of Listen before Talk Scheme for NB-Fi Networks |
title_full | On the Benefits of Listen before Talk Scheme for NB-Fi Networks |
title_fullStr | On the Benefits of Listen before Talk Scheme for NB-Fi Networks |
title_full_unstemmed | On the Benefits of Listen before Talk Scheme for NB-Fi Networks |
title_short | On the Benefits of Listen before Talk Scheme for NB-Fi Networks |
title_sort | on the benefits of listen before talk scheme for nb-fi networks |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10675225/ https://www.ncbi.nlm.nih.gov/pubmed/38005441 http://dx.doi.org/10.3390/s23229054 |
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