Enabling Device-to-Device Transmission for NOMA-Aided Systems

To utilize the close transmission, we assume that the device-to-device (D2D) link is activated to improve the performance of the far user. We consider two groups of users in the nonorthogonal multiple access- (NOMA)- aided wireless system. These features are necessary for massive connectivity in fut...

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Autores principales:	Anh-Tu Le, Nhan Duc Nguyen, Dinh-Thuan Do, Munyaradzi Munochiveyi
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi-Wiley 2021
Materias:	Technology T Telecommunication TK5101-6720
Acceso en línea:	https://doaj.org/article/fb0136f87dc94d669151eb1ae3e2a848
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id	oai:doaj.org-article:fb0136f87dc94d669151eb1ae3e2a848
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spelling	oai:doaj.org-article:fb0136f87dc94d669151eb1ae3e2a8482021-11-29T00:55:56ZEnabling Device-to-Device Transmission for NOMA-Aided Systems1530-867710.1155/2021/4342983https://doaj.org/article/fb0136f87dc94d669151eb1ae3e2a8482021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/4342983https://doaj.org/toc/1530-8677To utilize the close transmission, we assume that the device-to-device (D2D) link is activated to improve the performance of the far user. We consider two groups of users in the nonorthogonal multiple access- (NOMA)- aided wireless system. These features are necessary for massive connectivity in future wireless systems. The system performance also shows suitable performance at far distance users. To evaluate the performance in detail, we derive novel closed form expressions of outage probability. In practical situations impaired by channel uncertainty, it is necessary to evaluate the impact of channel error levels on outage probability. Our numerical results indicated that the transmit power at the base station and channel error level are the main impacts on system performance. Despite these impacts, our obtained numerical results demonstrated that the proposed scheme can still increase energy efficiency and achieve significant outage performance via many practical challenges.Anh-Tu LeNhan Duc NguyenDinh-Thuan DoMunyaradzi MunochiveyiHindawi-WileyarticleTechnologyTTelecommunicationTK5101-6720ENWireless Communications and Mobile Computing, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Technology T Telecommunication TK5101-6720
spellingShingle	Technology T Telecommunication TK5101-6720 Anh-Tu Le Nhan Duc Nguyen Dinh-Thuan Do Munyaradzi Munochiveyi Enabling Device-to-Device Transmission for NOMA-Aided Systems
description	To utilize the close transmission, we assume that the device-to-device (D2D) link is activated to improve the performance of the far user. We consider two groups of users in the nonorthogonal multiple access- (NOMA)- aided wireless system. These features are necessary for massive connectivity in future wireless systems. The system performance also shows suitable performance at far distance users. To evaluate the performance in detail, we derive novel closed form expressions of outage probability. In practical situations impaired by channel uncertainty, it is necessary to evaluate the impact of channel error levels on outage probability. Our numerical results indicated that the transmit power at the base station and channel error level are the main impacts on system performance. Despite these impacts, our obtained numerical results demonstrated that the proposed scheme can still increase energy efficiency and achieve significant outage performance via many practical challenges.
format	article
author	Anh-Tu Le Nhan Duc Nguyen Dinh-Thuan Do Munyaradzi Munochiveyi
author_facet	Anh-Tu Le Nhan Duc Nguyen Dinh-Thuan Do Munyaradzi Munochiveyi
author_sort	Anh-Tu Le
title	Enabling Device-to-Device Transmission for NOMA-Aided Systems
title_short	Enabling Device-to-Device Transmission for NOMA-Aided Systems
title_full	Enabling Device-to-Device Transmission for NOMA-Aided Systems
title_fullStr	Enabling Device-to-Device Transmission for NOMA-Aided Systems
title_full_unstemmed	Enabling Device-to-Device Transmission for NOMA-Aided Systems
title_sort	enabling device-to-device transmission for noma-aided systems
publisher	Hindawi-Wiley
publishDate	2021
url	https://doaj.org/article/fb0136f87dc94d669151eb1ae3e2a848
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Enabling Device-to-Device Transmission for NOMA-Aided Systems

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