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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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/22/7589 |
| _version_ | 1797508546051440640 |
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| author | Samikkannu Rajkumar Dushantha Nalin K. Jayakody |
| author_facet | Samikkannu Rajkumar Dushantha Nalin K. Jayakody |
| author_sort | Samikkannu Rajkumar |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-10T05:05:27Z |
| format | Article |
| id | doaj.art-daf77c1996f34b97805ba9184870b6d0 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T05:05:27Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-daf77c1996f34b97805ba9184870b6d02023-11-23T01:26:14ZengMDPI AGSensors1424-82202021-11-012122758910.3390/s21227589Backscatter Assisted NOMA-PLNC Based Wireless NetworksSamikkannu Rajkumar0Dushantha Nalin K. Jayakody1Centre for Telecommunication Research, School of Engineering, Sri Lanka Technological Campus, Padukka 10500, Sri LankaCentre for Telecommunication Research, School of Engineering, Sri Lanka Technological Campus, Padukka 10500, Sri LankaIn 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.https://www.mdpi.com/1424-8220/21/22/7589non-orthogonal multiple accessphysical layer network codingambient backscattering |
| spellingShingle | Samikkannu Rajkumar Dushantha Nalin K. Jayakody Backscatter Assisted NOMA-PLNC Based Wireless Networks Sensors non-orthogonal multiple access physical layer network coding ambient backscattering |
| title | 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_short | Backscatter Assisted NOMA-PLNC Based Wireless Networks |
| title_sort | backscatter assisted noma plnc based wireless networks |
| topic | non-orthogonal multiple access physical layer network coding ambient backscattering |
| url | https://www.mdpi.com/1424-8220/21/22/7589 |
| work_keys_str_mv | AT samikkannurajkumar backscatterassistednomaplncbasedwirelessnetworks AT dushanthanalinkjayakody backscatterassistednomaplncbasedwirelessnetworks |