Outage Performance Analysis for SWIPT-Based Cooperative Non-Orthogonal Multiple Access Systems

Liu, Yingting; Ding, Haiyang; Shen, Jianmei; Xiao, Ruyi; Yang, Hongwu

doi:10.1109/lcomm.2019.2924655

Cited by 51 publications

(46 citation statements)

References 15 publications

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“…In addition, we can base on the Eqs. (13), (14), (16), (18), (19), (23), (24), (25) to explain for these features. Therefore, it is shown that the C-NOMA scheme with direct link has a low outage probability over the C-NOMA without direct link as well as OMA.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…Two key techniques applied in NOMA consist of superposition coding (SC) [2] and successive interference cancellation (SIC) [1]- [2]. As an extended version of NOMA, cooperative NOMA (C-NOMA) [8]- [9] exploits a user with better channel conditions, namely a relaying user, to assist to forward the information to another user with poor channel conditions. Therefore, it can increase coverage region of BS and improve performance of NOMA systems.…”

Section: Introductionmentioning

confidence: 99%

“…The effectiveness of the proposed schemes was demonstrated over OMA and the work of [18]. In [19], a SWIPT based C-NOMA system was investigated. A joint design for the power allocation coefficients and the PS factor was proposed to improve the system performance.…”

Section: Introductionmentioning

confidence: 99%

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Performance Analysis of Power-Splitting Relaying Protocol in SWIPT Based Cooperative NOMA Systems

Tran

Phan

Vien³

2020

Preprint

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This paper investigates a relay assisted simultaneous wireless information and power transfer (SWIPT) for downlink in cellular systems. Cooperative non-orthogonal multiple access (C-NOMA) is employed along with power splitting (PS) protocol to enable both energy harvesting (EH) and information processing (IP). A downlink model consisting of a base station (BS) and two users is considered, in which the near user (NU) is selected as a relay to forward the received signal from the BS to the far user (FU). Maximum ratio combining is then employed at the FU to combine both the signals received from the BS and NU. Closed form expressions of outage probability (OP), throughput, ergodic rate and energy efficiency (EE) are firstly derived for the SWIPT based C-NOMA considering both scenarios of having and without having direct link between the BS and FU. The impacts of EH time, EH efficiency, power-splitting ratio, source data rate and distance between different nodes on the performance are then investigated. The simulation results show that the C-NOMA with direct link achieves an outperformed performance over C-NOMA without direct link. Moreover, the performance of C-NOMA with direct link is also higher than that for OMA. Specifically, (i) the outage probability for C-NOMA in both direct and relaying link cases is always lower than that for OMA. (ii) the outage probability, throughput and ergodic rate vary according to b, (iii) the EE of both users can obtain in SNR range of from -10 to 5 dB and it decreases linearly as SNR increases. Numerical results are provided to verify the findings.

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Section: Simulation Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance Analysis of Power-Splitting Relaying Protocol in SWIPT Based Cooperative NOMA Systems

Tran

Phan

Vien³

2020

Preprint

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“…24 With the existence of a direct path to the FU, the outage performance is analyzed for SWIPT-NOMA system with power splitting mechanism. 25 Outage analysis of downlink FD-NOMA relay networks with energy harvesting over Nakagami-m fading channel is investigated. 26 Analytical expression for outage probability is derived for multi-user cognitive-NOMA system, in the presence of multiuser interference.…”

Section: Contribution With Related Workmentioning

confidence: 99%

“…Considering user‐relaying scenario, the outage performance is analyzed for energy‐harvesting FD‐NOMA system with time switching mechanism in Rayleigh fading environment . With the existence of a direct path to the FU, the outage performance is analyzed for SWIPT‐NOMA system with power splitting mechanism . Outage analysis of downlink FD‐NOMA relay networks with energy harvesting over Nakagami‐

m

fading channel is investigated .…”

Section: Introductionmentioning

confidence: 99%

Outage analysis of SWIPT‐based full‐duplex cognitive NOMA downlink system over Nakagami‐m fading channels

Sashiganth

Thiruvengadam²,

Kumar

2020

Int J Communication

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Summary Cognitive nonorthogonal multiple access (NOMA) technique allows multiple users to share the same time and same frequency resources to fulfil the reliability and spectral efficiency requirements of 5G communication standards. In this paper, simultaneous wireless information and power transfer (SWIPT)–based full‐duplex cognitive NOMA downlink system is proposed. In this system, secondary source (SS) serves as a relay to far primary user as there is no direct link from the primary source. NOMA technique is used at SS to transmit information to far primary user and secondary user. The time switching mechanism is adopted at SS for harvesting energy and information decoding. Analytical closed‐form expressions are derived for the outage probabilities of both primary and secondary users. Outage analysis is carried out in Nakagami‐ m fading environment in the presence of self‐interference at SS. In addition to that, the optimal harvesting time to maximize the instantaneous throughput of the far primary user is also derived. Numerical results are plotted to validate the derived expressions. It is inferred that the outage probability of the proposed system depends on the fading environment, harvesting parameters, and self‐interference at SS.

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Optimal power allocation‐based novel control jamming scheme for nonorthogonal multiple access enabled decode‐and‐forward relay network

Nayak

Gurrala

2021

Int J Communication

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In this work, a new control jamming (CJ) scheme has been proposed for a cooperative nonorthogonal multiple access (NOMA) network with optimal power allocation factors by employing decode-and-forward (DF) relay.Maximization of secrecy rate at both NOMA users with the aid of CJ under total transmit power constraint is considered as an optimization problem. In this regard, invasive weed optimization (IWO) algorithm-based approach is proposed to facilitate optimal power allocation for the considered network. In this analysis, performance metric secrecy rate is analyzed with CJ at both NOMA users by varying the location of eavesdropper with respect to the relay and jammer. In addition, the performance of fixed power allocation (FPA) and proposed power allocation (PPA) schemes is investigated with CJ and compared with jamming (J) and without jamming (WJ) conditions. Simulation result analysis specifies that secrecy performance is enhanced remarkably by CJ and PPA outperforms the FPA.

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Outage Performance Analysis for SWIPT-Based Cooperative Non-Orthogonal Multiple Access Systems

Cited by 51 publications

References 15 publications

Performance Analysis of Power-Splitting Relaying Protocol in SWIPT Based Cooperative NOMA Systems

Performance Analysis of Power-Splitting Relaying Protocol in SWIPT Based Cooperative NOMA Systems

Outage analysis of SWIPT‐based full‐duplex cognitive NOMA downlink system over Nakagami‐m fading channels

Optimal power allocation‐based novel control jamming scheme for nonorthogonal multiple access enabled decode‐and‐forward relay network

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