Power splitting versus time switching based cooperative relaying protocols for SWIPT in NOMA systems

Tran, Huu Q.; Phan, Ca Van; Vien, Quoc-Tuan

doi:10.1016/j.phycom.2020.101098

Cited by 32 publications

(16 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…More, by forwarding the information to far user, the relay based SWIPT C-NOMA can improve the integrity and reliability of the transmitted data for weak users [13]. Power splitting protocol (PSR) and time switching protocol (TSR) are exploited at SWIPT based relaying nodes to harvest energy and process information [5]- [6], [14]- [15]. In [16], the sum throughput of users in SWIPT based C-NOMA system was studied.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, in relay based C-NOMA, far users normally receive the transmitted signal which is forwarded from relay nodes [23]- [27]. This is because there are some obstacles on the propagation [5]- [6], [28]. However, in system models without obstacle, these far users can receive signals from both relay and BS, namely therefore relay based C-NOMA with direct links [25], [29]- [31].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

Tran

Phan

Vien³

2020

Preprint

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Tran

Phan

Vien³

2020

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…a NU, is given a lower power allocation factor than a weak user, i.e. a FU, to ensure user fairness [1,[5][6][7]. Two key techniques applied in NOMA consist of…”

mentioning

confidence: 99%

“…More, by forwarding the information to far users, the relay based SWIPT C-NOMA can improve the integrity and reliability of the transmitted data for weak users [13]. Power-splitting protocol (PSR) and time-switching protocol (TSR) are exploited at SWIPT based relaying nodes to harvest energy and process information [5,6,14,15]. In [16], the sum throughput of users in SWIPT based C-NOMA system was studied.…”

mentioning

confidence: 99%

“…Furthermore, in relay based C-NOMA, far users normally receive the transmitted signal which is forwarded from relay nodes [23][24][25][26][27]. This is because there are some obstacles on the propagation [5,6,28]. However, in system models without obstacle, these far users can receive signals from both relay and BS, namely therefore relay based C-NOMA with direct links [25,[29][30][31].…”

mentioning

confidence: 99%

See 1 more Smart Citation

Performance analysis of power-splitting relaying protocol in SWIPT based cooperative NOMA systems

Tran

Phan

Vien

2021

J Wireless Com Network

Self Cite

View full text Add to dashboard Cite

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 protocol to enable both energy harvesting (EH) and information processing (IP). A downlink model consists 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 propability, throughput, ergodic rate and energy efficiency (EE) are firstly derived for the SWIPT based C-NOMA considering both scenarios of with and without 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, (1) the outage probability for C-NOMA in both direct and relaying link cases is always lower than that for OMA. (2) the outage probability, throughput and ergodic rate vary according to $$\beta$$ β , (3) the EE of both users can obtain in SNR range of from $$-10$$ - 10 to 5 dB and it decreases linearly as SNR increases. Numerical results are provided to verify the findings.

show abstract

Outage of cooperative NOMA with an energy harvesting relay in an underlay cognitive radio network

Ghosh,

Dhar Roy,

Kundu

2024

Int J Communication

View full text Add to dashboard Cite

SummaryThis paper analyzes the performance of a cooperative nonorthogonal multiple access (NOMA) in an underlay cognitive radio network aided by an energy harvesting relay. A secondary source transmits signal for two users, where a near user acts as a relay for the far user. The far user applies the selection combining (SC) approach on the signals which were relayed by the near user and received via direct path from the secondary source. We analytically derive the outage probability (OP) of each user separately, the overall system OP, and the throughput of the system. The impact of the power allocation coefficient of NOMA and energy harvesting parameters on outage is indicated. Further, the performance of the network is investigated with imperfection in successive interference cancellation (SIC), maximal ratio combining (MRC) at relay, and Nakagami‐m fading. The results derived analytically are supported by simulation in MATLAB.

show abstract

Power splitting versus time switching based cooperative relaying protocols for SWIPT in NOMA systems

Cited by 32 publications

References 36 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

Performance analysis of power-splitting relaying protocol in SWIPT based cooperative NOMA systems

Outage of cooperative NOMA with an energy harvesting relay in an underlay cognitive radio network

Contact Info

Product

Resources

About