Outage Analysis of Relay-Assisted NOMA in Cooperative Cognitive Radio Networks with SWIPT

Tang, Kun; Liao, Shaowei

doi:10.3390/info11110500

Cited by 11 publications

(13 citation statements)

References 25 publications

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“…The NFR-C-NOMA scheme is modelled as in (17) and (18). The first time slot, ensures for effective decoding of messages from S to relays which is given by…”

Section: Nfr-c-noma Relay Schemementioning

confidence: 99%

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

Srinivasarao¹,

Maruthu²

2022

Int J Communication

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Summary 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 candidate along with non‐orthogonal multiple access (NOMA) scheme to increase the spectral efficiency. Conventionally, cooperative‐NOMA (C‐NOMA) systems are 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 analysed aiding perfect SIC, perfect channel state information (CSI), imperfect (I‐CSI) and (I‐SIC) over Rayleigh fading channel. Initially, we derive analytical expressions of outage probability (OP) by considering I‐SIC and I‐CSI for NFR‐C‐NOMA system. The accuracy of analytical results is verified through Monte Carlo (MC) simulations. Interpretation of the results conveys that I‐CSI and I‐SIC have a substantial impact on OP in NFR‐C‐NOMA scheme and existing schemes. Later, we examined impact on OP in NFR‐C‐NOMA by varying relay 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 outage performance than state‐of‐the‐art schemes.

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“…The NFR-C-NOMA scheme is modelled as in (17) and (18). The first time slot, ensures for effective decoding of messages from S to relays which is given by…”

Section: Nfr-c-noma Relay Schemementioning

confidence: 99%

“…During the second time slot, relays re-transmit the decoded information to D. In turn, D decodes the information if conditions mentioned in (18) are satisfied. Further, selection combining (SC) technique is aided for choosing the maximum SNR signal at D.…”

Section: Nfr-c-noma Relay Schemementioning

confidence: 99%

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

Srinivasarao¹,

Maruthu²

2022

Int J Communication

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“…In [ 14 ], a battery-assisted SWIPT relaying system was studied in Rayleigh fading, which makes the system can work nomally when the collected energy is not sufficient. In [ 15 ], the outage probability of SWIPT AF relay network with cooperative spectrum sharing was analyzed in Rayleigh fading. In [ 16 ], the outage performance of SWIPT in network-coded two-way relay systems was investigated in Rayleigh fading, where two transmission protocols, i.e., power splitting two-way relay (PS-TWR) and time switching two-way relay (TS-TWR) protocols were considered.…”

Section: Introductionmentioning

confidence: 99%

Outage Performance of Wireless Powered Decode-and-Forward Relaying Networks in Rician Fading

Zhang

Yu²,

Tan

et al. 2022

Entropy

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This paper investigates the outage performance of simultaneous wireless information and power transfer (SWIPT)-enabled relay networks with the decode-and-forward relaying protocol, where the effect of the energy triggering threshold at the relay on the system performance is considered. The closed-form expressions of the system outage probability and throughput are derived in Rician channel fading. Monte Carlo Simulation method is used to verify the accuracy of the derived closed-form expressions. The effects of some system parameters on the system performances are discussed via simulations, which show that the system outage probability increases with the increase of the minimum transmission rate required by the users and also decreases with the increase of the energy conversion efficiency. Besides, the system throughput increaseswith the increment of the transmit power of the source node, as well as the energy conversion efficiency. Additionally, the outage performance of the system with the equal two-hop distance is better than that of the system with unequal two-hop distance.

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“…Despite the extensive study of either the CCRNs or the SWIPT-aided networks, the performance of SWIPT-enabled underlay CCRNs is still in the infancy stage. In particular, there only a few works addressing this combination [30][31][32][33]. Specifically, Prathima et al in [30] studied the performance of the primary networks with the help of the secondary users that also act as the relay of primary users.…”

Section: Introductionmentioning

confidence: 99%

Outage Analysis of the Power Splitting Based Underlay Cooperative Cognitive Radio Networks

Tin

Phan

Nguyen

et al. 2021

Sensors

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In the present paper, we investigate the performance of the simultaneous wireless information and power transfer (SWIPT) based cooperative cognitive radio networks (CCRNs). In particular, the outage probability is derived in the closed-form expressions under the opportunistic partial relay selection. Different from the conventional CRNs in which the transmit power of the secondary transmitters count merely on the aggregate interference measured on the primary networks, the transmit power of the SWIPT-enabled transmitters is also constrained by the harvested energy. As a result, the mathematical framework involves more correlated random variables and, thus, is of higher complexity. Monte Carlo simulations are given to corroborate the accuracy of the mathematical analysis and to shed light on the behavior of the OP with respect to several important parameters, e.g., the transmit power and the number of relays. Our findings illustrate that increasing the transmit power and/or the number of relays is beneficial for the outage probability.

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Outage Analysis of Relay-Assisted NOMA in Cooperative Cognitive Radio Networks with SWIPT

Cited by 11 publications

References 25 publications

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

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

Outage Performance of Wireless Powered Decode-and-Forward Relaying Networks in Rician Fading

Outage Analysis of the Power Splitting Based Underlay Cooperative Cognitive Radio Networks

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