Outage Performance of Multiple Hybrid Active Relays and RISs-Assisted NOMA Networks

Active relays; non-orthogonal multiple access (NOMA); outage performance; reconfigurable intelligent surfaces (RISs); Multiple access; Multiple access network; Non-orthogonal; Non-orthogonal multiple access; Performance; Quality-of-service; Reconfigurable; Reconfigurable intelligent surface; Relay; Wireless communications; Control and Systems Engineering; Electrical and Electronic Engineering

Abstract :

[en] As the demand for high-performance wireless communication continues to grow, it becomes essential to explore efficient network designs that can improve system efficiency, coverage, and capacity. In this letter, we investigate the performance of hybrid active relays and reconfigurable intelligent surfaces (HARRIS)-aided non-orthogonal multiple access (NOMA) networks. We derive the outage probability of the proposed HARRIS architecture in closed-form expression over Rician fading channels and develop a framework for selecting the best HARRIS node considering different quality of service (QoS) requirements of the users. Simulation results include comparisons with pure RIS and pure relay in both NOMA and orthogonal multiple access (OMA) networks. Under favorable path loss, HARRIS approaches pure RIS performance, while in severe path loss, it closely aligns with purely active relay. Moreover, OMA outperforms NOMA for low QoS requirements, but NOMA excels in high QoS scenarios.

Disciplines :

Electrical & electronics engineering

Author, co-author :

SAMY, Mostafa ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom

AL-HRAISHAWI, Hayder ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust > SigCom > Team Symeon CHATZINOTAS

CHATZINOTAS, Symeon ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom

Otteresten, Bjorn ; University of Luxembourg, Interdisciplinary Centre for Security, Reliability and Trust, Esch sur Alzette, Luxembourg

External co-authors :

Language :

English

Title :

Outage Performance of Multiple Hybrid Active Relays and RISs-Assisted NOMA Networks

Publication date :

2024

Journal title :

IEEE Wireless Communications Letters

ISSN :

2162-2337

eISSN :

2162-2345

Publisher :

Institute of Electrical and Electronics Engineers Inc.

Volume :

Issue :

Pages :

2322 - 2326

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://xplorestaging.ieee.org/ielx7/5962382/10670693/10535443.pdf?arnumber=10535443

Funders :

Luxembourg National Research Fund (FNR) through the AFR Project CEP-MBD-CRIS

Funding text :

This work was supported by the Luxembourg National Research Fund (FNR) through the AFR Project CEP-MBD-CRIS under Grant 17974844. The associate editor coordinating the review of this article and approving it for publication was F. Zhou.

Available on ORBilu :

since 20 November 2024

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