Outage analysis of cooperative NOMA system with imperfect successive interference cancellation and channel state information over Rayleigh fading channel

Srinivasarao K; Surendar Maruthu

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Outage analysis of cooperative NOMA system with imperfect successive interference cancellation and channel state information over Rayleigh fading channel

机译：Outage analysis of cooperative NOMA system with imperfect successive interference cancellation and channel state information over Rayleigh fading channel

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Cooperative communication is a significant technology for fifth generation(5G) and beyond wireless communication to improve the quality of service(QoS) in massive networks. In addition, it serves as a promising candidatealong with non-orthogonal multiple access (NOMA) scheme to increase thespectral efficiency. Conventionally, cooperative-NOMA (C-NOMA) systemsare analysed by assuming perfect successive interference cancellation (SIC)and imperfect SIC (I-SIC) over Rayleigh, Rican, α-μ, Hoyt fading channels,and so on. In this paper, near–far relay (NFR) C-NOMA system is analysedaiding perfect SIC, perfect channel state information (CSI), imperfect (I-CSI)and (I-SIC) over Rayleigh fading channel. Initially, we derive analyticalexpressions of outage probability (OP) by considering I-SIC and I-CSI forNFR-C-NOMA system. The accuracy of analytical results is verified throughMonte Carlo (MC) simulations. Interpretation of the results conveys that I-CSIand I-SIC have a substantial impact on OP in NFR-C-NOMA scheme andexisting schemes. Later, we examined impact on OP in NFR-C-NOMA by varyingrelay position, target rate of users and jointly considering the I-SIC, I-CSI.Further, it is also observed that the NFR-C-NOMA scheme shows better outageperformance than state-of-the-art schemes.

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来源
《International journal of communication systems》 |2022年第16期|e5304.1-e5304.15|共15页
作者
Srinivasarao K; Surendar Maruthu;
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作者单位

Department of Electronics andCommunication Engineering, NationalInstitute of Technology Puducherry,Karaikal, India;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
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正文语种英语
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cooperative communication; near–far cooperative non-orthogonal multiple access (NFR-CNOMA) scheme; outage probability; Rayleigh fading channel;

Outage analysis of cooperative NOMA system with imperfect successive interference cancellation and channel state information over Rayleigh fading channel

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