Performance Analysis of Rate-Splitting Multiple Access in Coordinated Direct and Relay Transmission
The result's identifiers
Result code in 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>
Result on the web
<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>
Alternative languages
Result language
angličtina
Original language name
Performance Analysis of Rate-Splitting Multiple Access in Coordinated Direct and Relay Transmission
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
IEEE Transactions on Vehicular Technology
ISSN
0018-9545
e-ISSN
1939-9359
Volume of the periodical
74
Issue of the periodical within the volume
12
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
19016-19027
UT code for WoS article
001641596800045
EID of the result in the Scopus database
2-s2.0-105010359925