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Outage Performance of Multiple Hybrid Active Relays and RISs-Assisted NOMA Networks
Interdisciplinary Centre for Security, Reliability and Trust, University of Luxembourg, Esch sur Alzette, Luxembourg.
Interdisciplinary Centre for Security, Reliability and Trust, University of Luxembourg, Esch sur Alzette, Luxembourg.
Interdisciplinary Centre for Security, Reliability and Trust, University of Luxembourg, Esch sur Alzette, Luxembourg.
Interdisciplinary Centre for Security, Reliability and Trust, University of Luxembourg, Esch sur Alzette, Luxembourg. (Signal Processing)ORCID iD: 0000-0003-2298-6774
2024 (English)In: IEEE Wireless Communications Letters, ISSN 2162-2337, Vol. 13, no 9, p. 2322-2326Article in journal (Refereed) Published
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.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE) , 2024. Vol. 13, no 9, p. 2322-2326
Keywords [en]
Relays;NOMA;Reconfigurable intelligent surfaces;Wireless communication;Quality of service;Signal to noise ratio;Reflection;Active relays;non-orthogonal multiple access (NOMA);outage performance;reconfigurable intelligent surfaces (RISs)
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:kth:diva-364742DOI: 10.1109/LWC.2024.3403378ISI: 001312951400024Scopus ID: 2-s2.0-85194104376OAI: oai:DiVA.org:kth-364742DiVA, id: diva2:1970039
Note

QC 20250617

Available from: 2025-06-16 Created: 2025-06-16 Last updated: 2025-10-30Bibliographically approved

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CiteExportLink to record
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