Backscatter Assisted NOMA-PLNC Based Wireless Networks

In this paper, sum capacity maximization of the non-orthogonal multiple access (NOMA)-based wireless network is studied in the presence of ambient backscattering (ABS). Assuming that ABS is located next to far nodes, it improves the signal strength of far node cluster. By applying suitable successiv...

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Autores principales:	Samikkannu Rajkumar, Dushantha Nalin K. Jayakody
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	non-orthogonal multiple access physical layer network coding ambient backscattering Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/daf77c1996f34b97805ba9184870b6d0
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spelling	oai:doaj.org-article:daf77c1996f34b97805ba9184870b6d02021-11-25T18:57:41ZBackscatter Assisted NOMA-PLNC Based Wireless Networks10.3390/s212275891424-8220https://doaj.org/article/daf77c1996f34b97805ba9184870b6d02021-11-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/22/7589https://doaj.org/toc/1424-8220In this paper, sum capacity maximization of the non-orthogonal multiple access (NOMA)-based wireless network is studied in the presence of ambient backscattering (ABS). Assuming that ABS is located next to far nodes, it improves the signal strength of far node cluster. By applying suitable successive interference cancellation (SIC) operation, far node cluster act as an internet of things (IoT) reader. Moreover, to improve the uplink performance of the nodes, a physical layer network coding (PLNC) scheme is applied in the proposed network. Power optimization is employed at the access point (AP) to enhance the downlink performance with total transmit power constraint and minimum data rate requirement per user constraint using Lagrangian’s function. In addition, end-to-end outage performance of the proposed wireless network is analyzed to enhance each wireless link capacity. Numerical results evident that the outage performance of the proposed network is significantly improved while using the ABS. Furthermore, the average bit error rate (BER) performance of the proposed wireless network is studied to improve the reliability. Simulation results are presented to validate the analytical expressions.Samikkannu RajkumarDushantha Nalin K. JayakodyMDPI AGarticlenon-orthogonal multiple accessphysical layer network codingambient backscatteringChemical technologyTP1-1185ENSensors, Vol 21, Iss 7589, p 7589 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	non-orthogonal multiple access physical layer network coding ambient backscattering Chemical technology TP1-1185
spellingShingle	non-orthogonal multiple access physical layer network coding ambient backscattering Chemical technology TP1-1185 Samikkannu Rajkumar Dushantha Nalin K. Jayakody Backscatter Assisted NOMA-PLNC Based Wireless Networks
description	In this paper, sum capacity maximization of the non-orthogonal multiple access (NOMA)-based wireless network is studied in the presence of ambient backscattering (ABS). Assuming that ABS is located next to far nodes, it improves the signal strength of far node cluster. By applying suitable successive interference cancellation (SIC) operation, far node cluster act as an internet of things (IoT) reader. Moreover, to improve the uplink performance of the nodes, a physical layer network coding (PLNC) scheme is applied in the proposed network. Power optimization is employed at the access point (AP) to enhance the downlink performance with total transmit power constraint and minimum data rate requirement per user constraint using Lagrangian’s function. In addition, end-to-end outage performance of the proposed wireless network is analyzed to enhance each wireless link capacity. Numerical results evident that the outage performance of the proposed network is significantly improved while using the ABS. Furthermore, the average bit error rate (BER) performance of the proposed wireless network is studied to improve the reliability. Simulation results are presented to validate the analytical expressions.
format	article
author	Samikkannu Rajkumar Dushantha Nalin K. Jayakody
author_facet	Samikkannu Rajkumar Dushantha Nalin K. Jayakody
author_sort	Samikkannu Rajkumar
title	Backscatter Assisted NOMA-PLNC Based Wireless Networks
title_short	Backscatter Assisted NOMA-PLNC Based Wireless Networks
title_full	Backscatter Assisted NOMA-PLNC Based Wireless Networks
title_fullStr	Backscatter Assisted NOMA-PLNC Based Wireless Networks
title_full_unstemmed	Backscatter Assisted NOMA-PLNC Based Wireless Networks
title_sort	backscatter assisted noma-plnc based wireless networks
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/daf77c1996f34b97805ba9184870b6d0
work_keys_str_mv	AT samikkannurajkumar backscatterassistednomaplncbasedwirelessnetworks AT dushanthanalinkjayakody backscatterassistednomaplncbasedwirelessnetworks
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Backscatter Assisted NOMA-PLNC Based Wireless Networks

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