Cargando…
On Exact Outage and Throughput Performance of Cognitive Radio based Non-Orthogonal Multiple Access Networks With and Without D2D Link
In this paper, we investigate the performance of a secondary network in a cognitive radio network employing a non-orthogonal multiple access (NOMA) scheme to form a CR-NOMA system serving many destination users. In the secondary network of our proposed system, a device-to-device (D2D) scheme is depl...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6695882/ https://www.ncbi.nlm.nih.gov/pubmed/31357691 http://dx.doi.org/10.3390/s19153314 |
_version_ | 1783444139353833472 |
---|---|
author | Do, Dinh-Thuan Le, Anh-Tu Le, Chi-Bao Lee, Byung Moo |
author_facet | Do, Dinh-Thuan Le, Anh-Tu Le, Chi-Bao Lee, Byung Moo |
author_sort | Do, Dinh-Thuan |
collection | PubMed |
description | In this paper, we investigate the performance of a secondary network in a cognitive radio network employing a non-orthogonal multiple access (NOMA) scheme to form a CR-NOMA system serving many destination users. In the secondary network of our proposed system, a device-to-device (D2D) scheme is deployed to further provide the signal transmission at a close distance of NOMA users in downlink, and such performance is evaluated under the situation of interference reception from the primary network. An outage performance gap exists among these NOMA users since different power allocation factors are assigned to the different destinations. Unlike existing NOMA schemes that consider fixed power allocation factors, which are not optimal in terms of outage performance, our proposed paradigm exhibits optimal outage in the scenario of D2D transmission. In particular, the outage performances in two kinds of schemes in term of existence of D2D link are further achieved. Simulation results validate the analytical expressions, and show the advantage of each scheme in the proposed CR-NOMA system based on outage performance and throughput. |
format | Online Article Text |
id | pubmed-6695882 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-66958822019-09-05 On Exact Outage and Throughput Performance of Cognitive Radio based Non-Orthogonal Multiple Access Networks With and Without D2D Link Do, Dinh-Thuan Le, Anh-Tu Le, Chi-Bao Lee, Byung Moo Sensors (Basel) Article In this paper, we investigate the performance of a secondary network in a cognitive radio network employing a non-orthogonal multiple access (NOMA) scheme to form a CR-NOMA system serving many destination users. In the secondary network of our proposed system, a device-to-device (D2D) scheme is deployed to further provide the signal transmission at a close distance of NOMA users in downlink, and such performance is evaluated under the situation of interference reception from the primary network. An outage performance gap exists among these NOMA users since different power allocation factors are assigned to the different destinations. Unlike existing NOMA schemes that consider fixed power allocation factors, which are not optimal in terms of outage performance, our proposed paradigm exhibits optimal outage in the scenario of D2D transmission. In particular, the outage performances in two kinds of schemes in term of existence of D2D link are further achieved. Simulation results validate the analytical expressions, and show the advantage of each scheme in the proposed CR-NOMA system based on outage performance and throughput. MDPI 2019-07-28 /pmc/articles/PMC6695882/ /pubmed/31357691 http://dx.doi.org/10.3390/s19153314 Text en © 2019 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Do, Dinh-Thuan Le, Anh-Tu Le, Chi-Bao Lee, Byung Moo On Exact Outage and Throughput Performance of Cognitive Radio based Non-Orthogonal Multiple Access Networks With and Without D2D Link |
title | On Exact Outage and Throughput Performance of Cognitive Radio based Non-Orthogonal Multiple Access Networks With and Without D2D Link |
title_full | On Exact Outage and Throughput Performance of Cognitive Radio based Non-Orthogonal Multiple Access Networks With and Without D2D Link |
title_fullStr | On Exact Outage and Throughput Performance of Cognitive Radio based Non-Orthogonal Multiple Access Networks With and Without D2D Link |
title_full_unstemmed | On Exact Outage and Throughput Performance of Cognitive Radio based Non-Orthogonal Multiple Access Networks With and Without D2D Link |
title_short | On Exact Outage and Throughput Performance of Cognitive Radio based Non-Orthogonal Multiple Access Networks With and Without D2D Link |
title_sort | on exact outage and throughput performance of cognitive radio based non-orthogonal multiple access networks with and without d2d link |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6695882/ https://www.ncbi.nlm.nih.gov/pubmed/31357691 http://dx.doi.org/10.3390/s19153314 |
work_keys_str_mv | AT dodinhthuan onexactoutageandthroughputperformanceofcognitiveradiobasednonorthogonalmultipleaccessnetworkswithandwithoutd2dlink AT leanhtu onexactoutageandthroughputperformanceofcognitiveradiobasednonorthogonalmultipleaccessnetworkswithandwithoutd2dlink AT lechibao onexactoutageandthroughputperformanceofcognitiveradiobasednonorthogonalmultipleaccessnetworkswithandwithoutd2dlink AT leebyungmoo onexactoutageandthroughputperformanceofcognitiveradiobasednonorthogonalmultipleaccessnetworkswithandwithoutd2dlink |