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Channel-Hopping Sequence and Rendezvous MAC for Cognitive Radio Networks
In cognitive radio networks (CRNs), two secondary users (SUs) need to meet on a channel among multiple channels within a finite time to establish a link, which is called rendezvous. For blind rendezvous, researchers have devised ample well-grounded channel hopping (CH) sequences that guarantee small...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9416706/ https://www.ncbi.nlm.nih.gov/pubmed/36015706 http://dx.doi.org/10.3390/s22165949 |
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author | Paul, Rajib Jang, Jiwoon Choi, Young-June |
author_facet | Paul, Rajib Jang, Jiwoon Choi, Young-June |
author_sort | Paul, Rajib |
collection | PubMed |
description | In cognitive radio networks (CRNs), two secondary users (SUs) need to meet on a channel among multiple channels within a finite time to establish a link, which is called rendezvous. For blind rendezvous, researchers have devised ample well-grounded channel hopping (CH) sequences that guarantee smaller time-to-rendezvous. However, the best part of these works lacks the impact of network factors, particularly channel availability and collision during rendezvous. In this study, a new CH scheme is investigated by jointly considering the medium access control (MAC) protocol for single-hop multi-user CRNs. The analysis of our new variable hopping sequence (V-HS) guarantees rendezvous for the asymmetric channel model within a finite time. Although this mathematical concept guarantees rendezvous between two SUs, opportunities can be overthrown because of the unsuccessful exchange of control packets on that channel. A successful rendezvous also requires the exchange of messages reliably while two users visit the same channel. We propose a MAC protocol, namely ReMAC, that can work with V-HS and CH schemes. This design allows multiple rendezvous opportunities when a certain user visits the channel and modifies the conventional back-off strategy to maintain the channel list. Both simulation and analytical results exhibited improved performance over the previous approaches. |
format | Online Article Text |
id | pubmed-9416706 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-94167062022-08-27 Channel-Hopping Sequence and Rendezvous MAC for Cognitive Radio Networks Paul, Rajib Jang, Jiwoon Choi, Young-June Sensors (Basel) Article In cognitive radio networks (CRNs), two secondary users (SUs) need to meet on a channel among multiple channels within a finite time to establish a link, which is called rendezvous. For blind rendezvous, researchers have devised ample well-grounded channel hopping (CH) sequences that guarantee smaller time-to-rendezvous. However, the best part of these works lacks the impact of network factors, particularly channel availability and collision during rendezvous. In this study, a new CH scheme is investigated by jointly considering the medium access control (MAC) protocol for single-hop multi-user CRNs. The analysis of our new variable hopping sequence (V-HS) guarantees rendezvous for the asymmetric channel model within a finite time. Although this mathematical concept guarantees rendezvous between two SUs, opportunities can be overthrown because of the unsuccessful exchange of control packets on that channel. A successful rendezvous also requires the exchange of messages reliably while two users visit the same channel. We propose a MAC protocol, namely ReMAC, that can work with V-HS and CH schemes. This design allows multiple rendezvous opportunities when a certain user visits the channel and modifies the conventional back-off strategy to maintain the channel list. Both simulation and analytical results exhibited improved performance over the previous approaches. MDPI 2022-08-09 /pmc/articles/PMC9416706/ /pubmed/36015706 http://dx.doi.org/10.3390/s22165949 Text en © 2022 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 Paul, Rajib Jang, Jiwoon Choi, Young-June Channel-Hopping Sequence and Rendezvous MAC for Cognitive Radio Networks |
title | Channel-Hopping Sequence and Rendezvous MAC for Cognitive Radio Networks |
title_full | Channel-Hopping Sequence and Rendezvous MAC for Cognitive Radio Networks |
title_fullStr | Channel-Hopping Sequence and Rendezvous MAC for Cognitive Radio Networks |
title_full_unstemmed | Channel-Hopping Sequence and Rendezvous MAC for Cognitive Radio Networks |
title_short | Channel-Hopping Sequence and Rendezvous MAC for Cognitive Radio Networks |
title_sort | channel-hopping sequence and rendezvous mac for cognitive radio networks |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9416706/ https://www.ncbi.nlm.nih.gov/pubmed/36015706 http://dx.doi.org/10.3390/s22165949 |
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