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Performance Analysis of Relay Subset Selection for Amplify-and-Forward Cognitive Relay Networks

Cooperative communication is regarded as a key technology in wireless networks, including cognitive radio networks (CRNs), which increases the diversity order of the signal to combat the unfavorable effects of the fading channels, by allowing distributed terminals to collaborate through sophisticate...

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Autores principales: Sultan, Kiran, Qureshi, Ijaz Mansoor, Malik, Aqdas Naveed, Zubair, Muhammad
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3967659/
https://www.ncbi.nlm.nih.gov/pubmed/24737980
http://dx.doi.org/10.1155/2014/548082
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author Sultan, Kiran
Qureshi, Ijaz Mansoor
Malik, Aqdas Naveed
Zubair, Muhammad
author_facet Sultan, Kiran
Qureshi, Ijaz Mansoor
Malik, Aqdas Naveed
Zubair, Muhammad
author_sort Sultan, Kiran
collection PubMed
description Cooperative communication is regarded as a key technology in wireless networks, including cognitive radio networks (CRNs), which increases the diversity order of the signal to combat the unfavorable effects of the fading channels, by allowing distributed terminals to collaborate through sophisticated signal processing. Underlay CRNs have strict interference constraints towards the secondary users (SUs) active in the frequency band of the primary users (PUs), which limits their transmit power and their coverage area. Relay selection offers a potential solution to the challenges faced by underlay networks, by selecting either single best relay or a subset of potential relay set under different design requirements and assumptions. The best relay selection schemes proposed in the literature for amplify-and-forward (AF) based underlay cognitive relay networks have been very well studied in terms of outage probability (OP) and bit error rate (BER), which is deficient in multiple relay selection schemes. The novelty of this work is to study the outage behavior of multiple relay selection in the underlay CRN and derive the closed-form expressions for the OP and BER through cumulative distribution function (CDF) of the SNR received at the destination. The effectiveness of relay subset selection is shown through simulation results.
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spelling pubmed-39676592014-04-15 Performance Analysis of Relay Subset Selection for Amplify-and-Forward Cognitive Relay Networks Sultan, Kiran Qureshi, Ijaz Mansoor Malik, Aqdas Naveed Zubair, Muhammad ScientificWorldJournal Research Article Cooperative communication is regarded as a key technology in wireless networks, including cognitive radio networks (CRNs), which increases the diversity order of the signal to combat the unfavorable effects of the fading channels, by allowing distributed terminals to collaborate through sophisticated signal processing. Underlay CRNs have strict interference constraints towards the secondary users (SUs) active in the frequency band of the primary users (PUs), which limits their transmit power and their coverage area. Relay selection offers a potential solution to the challenges faced by underlay networks, by selecting either single best relay or a subset of potential relay set under different design requirements and assumptions. The best relay selection schemes proposed in the literature for amplify-and-forward (AF) based underlay cognitive relay networks have been very well studied in terms of outage probability (OP) and bit error rate (BER), which is deficient in multiple relay selection schemes. The novelty of this work is to study the outage behavior of multiple relay selection in the underlay CRN and derive the closed-form expressions for the OP and BER through cumulative distribution function (CDF) of the SNR received at the destination. The effectiveness of relay subset selection is shown through simulation results. Hindawi Publishing Corporation 2014-03-06 /pmc/articles/PMC3967659/ /pubmed/24737980 http://dx.doi.org/10.1155/2014/548082 Text en Copyright © 2014 Kiran Sultan et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Sultan, Kiran
Qureshi, Ijaz Mansoor
Malik, Aqdas Naveed
Zubair, Muhammad
Performance Analysis of Relay Subset Selection for Amplify-and-Forward Cognitive Relay Networks
title Performance Analysis of Relay Subset Selection for Amplify-and-Forward Cognitive Relay Networks
title_full Performance Analysis of Relay Subset Selection for Amplify-and-Forward Cognitive Relay Networks
title_fullStr Performance Analysis of Relay Subset Selection for Amplify-and-Forward Cognitive Relay Networks
title_full_unstemmed Performance Analysis of Relay Subset Selection for Amplify-and-Forward Cognitive Relay Networks
title_short Performance Analysis of Relay Subset Selection for Amplify-and-Forward Cognitive Relay Networks
title_sort performance analysis of relay subset selection for amplify-and-forward cognitive relay networks
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3967659/
https://www.ncbi.nlm.nih.gov/pubmed/24737980
http://dx.doi.org/10.1155/2014/548082
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