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A communication failure and repair mechanism with adjustable transmission rates for PU packets in CRNs
As one key technology of future radio communication networks, cognitive radio networks (CRNs) can effectively handle the shortage of network resources. Two classes of users exist in traditional CRNs, namely, primary users (PUs) with higher priority and secondary users (SUs) with cognitive ability. I...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9932363/ https://www.ncbi.nlm.nih.gov/pubmed/36816294 http://dx.doi.org/10.1016/j.heliyon.2023.e13184 |
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author | Zhao, Yuan Lu, Qi Ye, Zhisheng Chen, Kang |
author_facet | Zhao, Yuan Lu, Qi Ye, Zhisheng Chen, Kang |
author_sort | Zhao, Yuan |
collection | PubMed |
description | As one key technology of future radio communication networks, cognitive radio networks (CRNs) can effectively handle the shortage of network resources. Two classes of users exist in traditional CRNs, namely, primary users (PUs) with higher priority and secondary users (SUs) with cognitive ability. In CRNs, during the communication process, packets need to travel through various servers, such as switches and routers, and these devices may fail at any time. We consider this type of problem to be a communication failure. The occurrence of communication failures trigger system repairs, which make the system return to regular work. In this paper, we present a communication failure and repair mechanism with adjustable transmission rates for PU packets in CRNs. We assume that PU packets can maintain low-speed transmission during the system failure state and resume high-speed transmission after the failure is repaired. We establish a three-dimensional Markov chain (3DMC) and build a queueing model based on discrete time. Through numerical experiments, we analyze some indicators’ impact on the system capability. In addition, compared with the traditional communication failure and repair mechanism, our proposed mechanism can reduce the blocking rate while considerably increasing the throughput of data packets. |
format | Online Article Text |
id | pubmed-9932363 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-99323632023-02-17 A communication failure and repair mechanism with adjustable transmission rates for PU packets in CRNs Zhao, Yuan Lu, Qi Ye, Zhisheng Chen, Kang Heliyon Research Article As one key technology of future radio communication networks, cognitive radio networks (CRNs) can effectively handle the shortage of network resources. Two classes of users exist in traditional CRNs, namely, primary users (PUs) with higher priority and secondary users (SUs) with cognitive ability. In CRNs, during the communication process, packets need to travel through various servers, such as switches and routers, and these devices may fail at any time. We consider this type of problem to be a communication failure. The occurrence of communication failures trigger system repairs, which make the system return to regular work. In this paper, we present a communication failure and repair mechanism with adjustable transmission rates for PU packets in CRNs. We assume that PU packets can maintain low-speed transmission during the system failure state and resume high-speed transmission after the failure is repaired. We establish a three-dimensional Markov chain (3DMC) and build a queueing model based on discrete time. Through numerical experiments, we analyze some indicators’ impact on the system capability. In addition, compared with the traditional communication failure and repair mechanism, our proposed mechanism can reduce the blocking rate while considerably increasing the throughput of data packets. Elsevier 2023-01-26 /pmc/articles/PMC9932363/ /pubmed/36816294 http://dx.doi.org/10.1016/j.heliyon.2023.e13184 Text en © 2023 The Authors https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Research Article Zhao, Yuan Lu, Qi Ye, Zhisheng Chen, Kang A communication failure and repair mechanism with adjustable transmission rates for PU packets in CRNs |
title | A communication failure and repair mechanism with adjustable transmission rates for PU packets in CRNs |
title_full | A communication failure and repair mechanism with adjustable transmission rates for PU packets in CRNs |
title_fullStr | A communication failure and repair mechanism with adjustable transmission rates for PU packets in CRNs |
title_full_unstemmed | A communication failure and repair mechanism with adjustable transmission rates for PU packets in CRNs |
title_short | A communication failure and repair mechanism with adjustable transmission rates for PU packets in CRNs |
title_sort | communication failure and repair mechanism with adjustable transmission rates for pu packets in crns |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9932363/ https://www.ncbi.nlm.nih.gov/pubmed/36816294 http://dx.doi.org/10.1016/j.heliyon.2023.e13184 |
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