Performance Analysis of Rate-Splitting Multiple Access in Coordinated Direct and Relay Transmission

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62690094%3A18450%2F25%3A50022486" target="_blank" >RIV/62690094:18450/25:50022486 - isvavai.cz</a>

Výsledek na webu

<a href="https://ieeexplore.ieee.org/document/11059843" target="_blank" >https://ieeexplore.ieee.org/document/11059843</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TVT.2025.3584593" target="_blank" >10.1109/TVT.2025.3584593</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Performance Analysis of Rate-Splitting Multiple Access in Coordinated Direct and Relay Transmission

Popis výsledku v původním jazyce

Next generation internet-of-things (IoT) demands massive connectivity, reliability, scalability, quality of service (QoS), and high spectral efficiency. In order to serve a large number of devices with varying channel conditions, non-orthogonal multiple access (NOMA) has emerged as a potential solution. However, a major drawback of NOMA is that it suffers from loss of degrees of freedom which results in insufficient gain. To combat this, rate-splitting multiple access (RSMA) has been proposed in the literature. In this work, we introduce RSMA in a coordinated direct and relay transmission (CDRT) with two clusters of users to improve spectrum efficiency and system performance. In the proposed system, a base station (BS) communicates directly with users in cluster-1, and through decode and forward (DF) relay with users in cluster-2. A passive intelligent reflecting surface (IRS) is synergistically combined with a DF relay called the hybrid relay network (HRN) to provide beneficial multipath diversity. We derive the analytical expressions for outage probability and ergodic capacity of the HRN system. The analytical expressions are validated through simulation results. Further, we compare our proposed scheme with the existing NOMA-CDRT scheme and provide insights based on the analysis. © 1967-2012 IEEE.

Název v anglickém jazyce

Performance Analysis of Rate-Splitting Multiple Access in Coordinated Direct and Relay Transmission

Popis výsledku anglicky

Next generation internet-of-things (IoT) demands massive connectivity, reliability, scalability, quality of service (QoS), and high spectral efficiency. In order to serve a large number of devices with varying channel conditions, non-orthogonal multiple access (NOMA) has emerged as a potential solution. However, a major drawback of NOMA is that it suffers from loss of degrees of freedom which results in insufficient gain. To combat this, rate-splitting multiple access (RSMA) has been proposed in the literature. In this work, we introduce RSMA in a coordinated direct and relay transmission (CDRT) with two clusters of users to improve spectrum efficiency and system performance. In the proposed system, a base station (BS) communicates directly with users in cluster-1, and through decode and forward (DF) relay with users in cluster-2. A passive intelligent reflecting surface (IRS) is synergistically combined with a DF relay called the hybrid relay network (HRN) to provide beneficial multipath diversity. We derive the analytical expressions for outage probability and ergodic capacity of the HRN system. The analytical expressions are validated through simulation results. Further, we compare our proposed scheme with the existing NOMA-CDRT scheme and provide insights based on the analysis. © 1967-2012 IEEE.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE Transactions on Vehicular Technology

ISSN

0018-9545

e-ISSN

1939-9359

Svazek periodika

74

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

19016-19027

Kód UT WoS článku

001641596800045

EID výsledku v databázi Scopus

2-s2.0-105010359925