On the Channel Estimation Performance of NOMA Systems: Experimental Implementation of Real-Time Downlink NOMA-OFDM

Joana Angjo; Mehmet Mert Tuncer; Ege Akertek; Hakan Alakoca; Mehmet Basaran; Lutfiye Durak-Ata

doi:10.1109/BlackSeaCom48709.2020.9234965

On the Channel Estimation Performance of NOMA Systems: Experimental Implementation of Real-Time Downlink NOMA-OFDM

Joana Angjo, Mehmet Mert Tuncer, Ege Akertek, Hakan Alakoca, Mehmet Basaran, Lutfiye Durak-Ata

Informatics Institute

Istanbul Technical University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

9 Citations (Scopus)

Abstract

Due to the exponential growth in the number of connected devices, the utilization of available resources becomes challenging. To meet this demand, novel techniques with significantly higher gain for efficient spectrum usage and reduced latency are required. Non-orthogonal multiple access (NOMA) is expected to be a promising solution for the scarcity of spectrum resources, which are shared in a non-orthogonal way such that multiple users can access the same frequency and time slots simultaneously. Although many studies concentrate on NOMA, a few of them give insight into how the channel estimation and channel quantization affect the performance of the system. Related to this issue, this study focuses on a downlink NOMA implementation. In the first part, we mainly concentrate on the analysis of the effect of channel estimation and channel quantization on the bit error rate (BER) performance with MATLAB simulations. For the second part, the BER performance of the system is analyzed through a practical two-user downlink NOMA system implemented with software-defined radios (SDRs).

Original language	English
Title of host publication	2020 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2020
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781728171272
DOIs	https://doi.org/10.1109/BlackSeaCom48709.2020.9234965
Publication status	Published - 26 May 2020
Event	2020 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2020 - Odessa, Ukraine Duration: 26 May 2020 → 29 May 2020

Publication series

Name	2020 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2020

Conference

Conference	2020 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2020
Country/Territory	Ukraine
City	Odessa
Period	26/05/20 → 29/05/20

Bibliographical note

Publisher Copyright:
© 2020 IEEE.

Funding

ACKNOWLEDGMENT This work is supported in part by Istanbul Technical University (ITU) Vodafone Future Lab under Project No. ITUVF20191001P07.

Funders	Funder number
İTÜ Vodafone Future Lab	ITUVF20191001P07
Istanbul Teknik Üniversitesi

Keywords

bit error rate (BER)
channel estimation
channel quantization
Non-orthogonal multiple access (NOMA)
orthogonal frequency-division multiplexing (OFDM)
software-defined radio (SDR)
successive interference cancellation (SIC)
universal software radio peripheral (USRP)

Access to Document

10.1109/BlackSeaCom48709.2020.9234965

Cite this

Angjo, J., Tuncer, M. M., Akertek, E., Alakoca, H., Basaran, M., & Durak-Ata, L. (2020). On the Channel Estimation Performance of NOMA Systems: Experimental Implementation of Real-Time Downlink NOMA-OFDM. In 2020 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2020 Article 9234965 (2020 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2020). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/BlackSeaCom48709.2020.9234965

Angjo, Joana ; Tuncer, Mehmet Mert ; Akertek, Ege et al. / On the Channel Estimation Performance of NOMA Systems : Experimental Implementation of Real-Time Downlink NOMA-OFDM. 2020 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2020. Institute of Electrical and Electronics Engineers Inc., 2020. (2020 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2020).

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abstract = "Due to the exponential growth in the number of connected devices, the utilization of available resources becomes challenging. To meet this demand, novel techniques with significantly higher gain for efficient spectrum usage and reduced latency are required. Non-orthogonal multiple access (NOMA) is expected to be a promising solution for the scarcity of spectrum resources, which are shared in a non-orthogonal way such that multiple users can access the same frequency and time slots simultaneously. Although many studies concentrate on NOMA, a few of them give insight into how the channel estimation and channel quantization affect the performance of the system. Related to this issue, this study focuses on a downlink NOMA implementation. In the first part, we mainly concentrate on the analysis of the effect of channel estimation and channel quantization on the bit error rate (BER) performance with MATLAB simulations. For the second part, the BER performance of the system is analyzed through a practical two-user downlink NOMA system implemented with software-defined radios (SDRs).",

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Angjo, J, Tuncer, MM, Akertek, E, Alakoca, H, Basaran, M & Durak-Ata, L 2020, On the Channel Estimation Performance of NOMA Systems: Experimental Implementation of Real-Time Downlink NOMA-OFDM. in 2020 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2020., 9234965, 2020 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2020, Institute of Electrical and Electronics Engineers Inc., 2020 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2020, Odessa, Ukraine, 26/05/20. https://doi.org/10.1109/BlackSeaCom48709.2020.9234965

On the Channel Estimation Performance of NOMA Systems: Experimental Implementation of Real-Time Downlink NOMA-OFDM. / Angjo, Joana; Tuncer, Mehmet Mert; Akertek, Ege et al.
2020 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2020. Institute of Electrical and Electronics Engineers Inc., 2020. 9234965 (2020 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2020).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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N2 - Due to the exponential growth in the number of connected devices, the utilization of available resources becomes challenging. To meet this demand, novel techniques with significantly higher gain for efficient spectrum usage and reduced latency are required. Non-orthogonal multiple access (NOMA) is expected to be a promising solution for the scarcity of spectrum resources, which are shared in a non-orthogonal way such that multiple users can access the same frequency and time slots simultaneously. Although many studies concentrate on NOMA, a few of them give insight into how the channel estimation and channel quantization affect the performance of the system. Related to this issue, this study focuses on a downlink NOMA implementation. In the first part, we mainly concentrate on the analysis of the effect of channel estimation and channel quantization on the bit error rate (BER) performance with MATLAB simulations. For the second part, the BER performance of the system is analyzed through a practical two-user downlink NOMA system implemented with software-defined radios (SDRs).

AB - Due to the exponential growth in the number of connected devices, the utilization of available resources becomes challenging. To meet this demand, novel techniques with significantly higher gain for efficient spectrum usage and reduced latency are required. Non-orthogonal multiple access (NOMA) is expected to be a promising solution for the scarcity of spectrum resources, which are shared in a non-orthogonal way such that multiple users can access the same frequency and time slots simultaneously. Although many studies concentrate on NOMA, a few of them give insight into how the channel estimation and channel quantization affect the performance of the system. Related to this issue, this study focuses on a downlink NOMA implementation. In the first part, we mainly concentrate on the analysis of the effect of channel estimation and channel quantization on the bit error rate (BER) performance with MATLAB simulations. For the second part, the BER performance of the system is analyzed through a practical two-user downlink NOMA system implemented with software-defined radios (SDRs).

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PB - Institute of Electrical and Electronics Engineers Inc.

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Angjo J, Tuncer MM, Akertek E, Alakoca H, Basaran M, Durak-Ata L. On the Channel Estimation Performance of NOMA Systems: Experimental Implementation of Real-Time Downlink NOMA-OFDM. In 2020 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2020. Institute of Electrical and Electronics Engineers Inc. 2020. 9234965. (2020 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2020). doi: 10.1109/BlackSeaCom48709.2020.9234965

On the Channel Estimation Performance of NOMA Systems: Experimental Implementation of Real-Time Downlink NOMA-OFDM

Abstract

Publication series

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Bibliographical note

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Keywords

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