Ergodic Rate Analysis of RIS-Assisted BAC-NOMA Systems Under Nakagami-m Fading

Sarah Basharat; Syed Ali Hassan; Haejoon Jung; Kapal Dev; Aamir Mahmood; Mikael Gidlund

doi:10.1109/GLOBECOM54140.2023.10437538

Ergodic Rate Analysis of RIS-Assisted BAC-NOMA Systems Under Nakagami-m Fading

Sarah Basharat
, Syed Ali Hassan
, Haejoon Jung
, Kapal Dev
, Aamir Mahmood
, Mikael Gidlund

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

2 Citations (Scopus)

Abstract

In this paper, we investigate the reconfigurable intelligent surface (RIS)-assisted non-orthogonal multiple access-based backscatter communication (BAC-NOMA) system under Nakagami-m fading channels and element-splitting protocol. To evaluate the system performance, we first approximate the composite channel gain, i.e., the product of the forward and backscatter channel gains, as a Gamma random variable via the central limit theorem (CLT) and method of moments (MoM). Then, by leveraging the obtained results, we derive the closed-form expressions for the ergodic rates of the strong and weak backscatter nodes (BNs). To provide further insights, we conduct the asymptotic analysis in the high signal-to-noise ratio (SNR) regime. Our numerical results show an excellent correlation with the simulation results, validating our analysis, and demonstrate that the desired system performance can be achieved by adjusting the power reflection and element-splitting coefficients. Moreover, the results reveal the significant performance gain of the RIS-assisted BAC-NOMA system over the conventional BAC-NOMA system.

Original language	English
Title of host publication	GLOBECOM 2023 - 2023 IEEE Global Communications Conference
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	2378-2383
Number of pages	6
ISBN (Electronic)	9798350310900
DOIs	https://doi.org/10.1109/GLOBECOM54140.2023.10437538
Publication status	Published - 2023
Event	2023 IEEE Global Communications Conference, GLOBECOM 2023 - Kuala Lumpur, Malaysia Duration: 4 Dec 2023 → 8 Dec 2023

Publication series

Name	Proceedings - IEEE Global Communications Conference, GLOBECOM
ISSN (Print)	2334-0983
ISSN (Electronic)	2576-6813

Conference

Conference	2023 IEEE Global Communications Conference, GLOBECOM 2023
Country/Territory	Malaysia
City	Kuala Lumpur
Period	4/12/23 → 8/12/23

Bibliographical note

Publisher Copyright:
© 2023 IEEE.

Keywords

Backscatter communication (BackCom)
ergodic rate
non-orthogonal multiple access (NOMA)
reconfigurable intelligent surfaces (RISs)

Access to Document

10.1109/GLOBECOM54140.2023.10437538

Cite this

Basharat, S., Hassan, S. A., Jung, H., Dev, K., Mahmood, A., & Gidlund, M. (2023). Ergodic Rate Analysis of RIS-Assisted BAC-NOMA Systems Under Nakagami-m Fading. In GLOBECOM 2023 - 2023 IEEE Global Communications Conference (pp. 2378-2383). (Proceedings - IEEE Global Communications Conference, GLOBECOM). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/GLOBECOM54140.2023.10437538

@inproceedings{0dad5a16a191482a929b72beb8bde765,

title = "Ergodic Rate Analysis of RIS-Assisted BAC-NOMA Systems Under Nakagami-m Fading",

abstract = "In this paper, we investigate the reconfigurable intelligent surface (RIS)-assisted non-orthogonal multiple access-based backscatter communication (BAC-NOMA) system under Nakagami-m fading channels and element-splitting protocol. To evaluate the system performance, we first approximate the composite channel gain, i.e., the product of the forward and backscatter channel gains, as a Gamma random variable via the central limit theorem (CLT) and method of moments (MoM). Then, by leveraging the obtained results, we derive the closed-form expressions for the ergodic rates of the strong and weak backscatter nodes (BNs). To provide further insights, we conduct the asymptotic analysis in the high signal-to-noise ratio (SNR) regime. Our numerical results show an excellent correlation with the simulation results, validating our analysis, and demonstrate that the desired system performance can be achieved by adjusting the power reflection and element-splitting coefficients. Moreover, the results reveal the significant performance gain of the RIS-assisted BAC-NOMA system over the conventional BAC-NOMA system.",

keywords = "Backscatter communication (BackCom), ergodic rate, non-orthogonal multiple access (NOMA), reconfigurable intelligent surfaces (RISs)",

author = "Sarah Basharat and Hassan, \{Syed Ali\} and Haejoon Jung and Kapal Dev and Aamir Mahmood and Mikael Gidlund",

note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 2023 IEEE Global Communications Conference, GLOBECOM 2023 ; Conference date: 04-12-2023 Through 08-12-2023",

year = "2023",

doi = "10.1109/GLOBECOM54140.2023.10437538",

language = "English",

series = "Proceedings - IEEE Global Communications Conference, GLOBECOM",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "2378--2383",

booktitle = "GLOBECOM 2023 - 2023 IEEE Global Communications Conference",

address = "United States",

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Basharat, S, Hassan, SA, Jung, H, Dev, K, Mahmood, A & Gidlund, M 2023, Ergodic Rate Analysis of RIS-Assisted BAC-NOMA Systems Under Nakagami-m Fading. in GLOBECOM 2023 - 2023 IEEE Global Communications Conference. Proceedings - IEEE Global Communications Conference, GLOBECOM, Institute of Electrical and Electronics Engineers Inc., pp. 2378-2383, 2023 IEEE Global Communications Conference, GLOBECOM 2023, Kuala Lumpur, Malaysia, 4/12/23. https://doi.org/10.1109/GLOBECOM54140.2023.10437538

Ergodic Rate Analysis of RIS-Assisted BAC-NOMA Systems Under Nakagami-m Fading. / Basharat, Sarah; Hassan, Syed Ali; Jung, Haejoon et al.
GLOBECOM 2023 - 2023 IEEE Global Communications Conference. Institute of Electrical and Electronics Engineers Inc., 2023. p. 2378-2383 (Proceedings - IEEE Global Communications Conference, GLOBECOM).

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

TY - GEN

T1 - Ergodic Rate Analysis of RIS-Assisted BAC-NOMA Systems Under Nakagami-m Fading

AU - Basharat, Sarah

AU - Hassan, Syed Ali

AU - Jung, Haejoon

AU - Dev, Kapal

AU - Mahmood, Aamir

AU - Gidlund, Mikael

PY - 2023

Y1 - 2023

N2 - In this paper, we investigate the reconfigurable intelligent surface (RIS)-assisted non-orthogonal multiple access-based backscatter communication (BAC-NOMA) system under Nakagami-m fading channels and element-splitting protocol. To evaluate the system performance, we first approximate the composite channel gain, i.e., the product of the forward and backscatter channel gains, as a Gamma random variable via the central limit theorem (CLT) and method of moments (MoM). Then, by leveraging the obtained results, we derive the closed-form expressions for the ergodic rates of the strong and weak backscatter nodes (BNs). To provide further insights, we conduct the asymptotic analysis in the high signal-to-noise ratio (SNR) regime. Our numerical results show an excellent correlation with the simulation results, validating our analysis, and demonstrate that the desired system performance can be achieved by adjusting the power reflection and element-splitting coefficients. Moreover, the results reveal the significant performance gain of the RIS-assisted BAC-NOMA system over the conventional BAC-NOMA system.

AB - In this paper, we investigate the reconfigurable intelligent surface (RIS)-assisted non-orthogonal multiple access-based backscatter communication (BAC-NOMA) system under Nakagami-m fading channels and element-splitting protocol. To evaluate the system performance, we first approximate the composite channel gain, i.e., the product of the forward and backscatter channel gains, as a Gamma random variable via the central limit theorem (CLT) and method of moments (MoM). Then, by leveraging the obtained results, we derive the closed-form expressions for the ergodic rates of the strong and weak backscatter nodes (BNs). To provide further insights, we conduct the asymptotic analysis in the high signal-to-noise ratio (SNR) regime. Our numerical results show an excellent correlation with the simulation results, validating our analysis, and demonstrate that the desired system performance can be achieved by adjusting the power reflection and element-splitting coefficients. Moreover, the results reveal the significant performance gain of the RIS-assisted BAC-NOMA system over the conventional BAC-NOMA system.

KW - Backscatter communication (BackCom)

KW - ergodic rate

KW - non-orthogonal multiple access (NOMA)

KW - reconfigurable intelligent surfaces (RISs)

UR - https://www.scopus.com/pages/publications/85187375112

U2 - 10.1109/GLOBECOM54140.2023.10437538

DO - 10.1109/GLOBECOM54140.2023.10437538

M3 - Conference contribution

AN - SCOPUS:85187375112

T3 - Proceedings - IEEE Global Communications Conference, GLOBECOM

SP - 2378

EP - 2383

BT - GLOBECOM 2023 - 2023 IEEE Global Communications Conference

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2023 IEEE Global Communications Conference, GLOBECOM 2023

Y2 - 4 December 2023 through 8 December 2023

ER -

Basharat S, Hassan SA, Jung H, Dev K, Mahmood A, Gidlund M. Ergodic Rate Analysis of RIS-Assisted BAC-NOMA Systems Under Nakagami-m Fading. In GLOBECOM 2023 - 2023 IEEE Global Communications Conference. Institute of Electrical and Electronics Engineers Inc. 2023. p. 2378-2383. (Proceedings - IEEE Global Communications Conference, GLOBECOM). doi: 10.1109/GLOBECOM54140.2023.10437538

Ergodic Rate Analysis of RIS-Assisted BAC-NOMA Systems Under Nakagami-m Fading

Abstract

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Keywords

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