SWIPT-Based Cooperative NOMA for Two-Way Relay Communications: PSR versus TSR

Tran, Huu Q.; Vien, Quoc-Tuan

doi:10.1155/2023/3069999

Cited by 8 publications

(3 citation statements)

References 22 publications

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“…By harnessing these energy sources, multiple relay nodes can potentially operate autonomously without relying on conventional power sources or frequent battery replacements. This not only reduces operational costs but also extends the longevity of the network [15]- [18].…”

Section: Related Workmentioning

confidence: 99%

Performance Analysis of Device-to-DeviceCommunication Using Decode-and-Forward-BasedMultiple Relay in the Presence of Co-ChannelInterference

Tran

2023

Preprint

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This paper analyzes the impact of co-channel interference on deviceto-device communication using the energy harvesting (EH) and decode-andforward (DF) technique at multiple relay nodes. The paper presents closedform expressions for the cumulative distribution function (CDF) of the signalto-noise ratio plus co-channel noise (SINR), as well as expressions for the outage probability (OP), throughput, and available rate (AR) of the network. Furthermore, an asymptotic expression is derived to assess the probability densityfunction (PDF) of the instantaneous SINR, offering a simple and generalizedapproach to understanding its characteristics in relation to OP, throughput,and AR. The analysis results are verified through Monte-Carlo simulationsand implemented using Matlab.

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Section: Related Workmentioning

confidence: 99%

Performance Analysis of Device-to-DeviceCommunication Using Decode-and-Forward-BasedMultiple Relay in the Presence of Co-ChannelInterference

Tran

2023

Preprint

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“…, and α * R,1 = 1−α * R,2 provide a sub-optimal solution for the optimization problem (40). The objective function and its asymptotic expression, as defined in (35) and (36), respectively, are non-convex with respect to α 1,2 , α 2,2 , and α R,2 . Therefore, to tackle the optimization problem formulated in (43), we resort to a suboptimal solution.…”

Section: ) Outage Probability Criterionmentioning

confidence: 99%

Performance Analysis of NOMA-Based Transmission in Two-Way Relay Network

Hesam,

Bastami,

Abdel-Hafez

2024

IEEE Access

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In this paper, we study the performance of the two-way relay network (TWRN) with NOMAbased transmission, where the information is exchanged during three time slots. To provide a fair comparison, we also examine the performance of a three-time-slot (3T) OMA-based transmission scheme. In the following, these schemes are referred to as 3T-NOMA-TWRN and 3T-OMA-TWRN. In the 3T-NOMA-TWRN scheme, each transceiver simultaneously transmits two symbols with different powers to exploit the multiplexing gain, implemented through the power-domain NOMA technique. The performance of both schemes is analyzed in terms of the outage probability, the ergodic sum-rate, and their asymptotic behaviors. The outage and rate performances of the schemes are enhanced by optimizing the power allocation coefficients, especially in the NOMA-based scheme. The proposed power allocation algorithm imposes negligible overhead because of considering the closed-form expressions of the outage probability and the ergodic sum-rate as the objective function. For the NOMA-based scheme, we propose sub-optimal power allocation strategies that closely approximate the optimal solution. The validity of the analytical results is confirmed by extensive numerical examples. The results show that the 3T-NOMA-TWRN scheme outperforms its OMAbased counterpart in terms of the outage probability and the ergodic sum-rate, especially in the high-rate and high-SNR regimes. Additionally, the 3T-NOMA-TWRN scheme significantly outperforms the existing twotime-slot (2T)-NOMA-TWRN scheme in the high-SNR regime. However, in the low-SNR regime, only in some cases, the situation changes in favor of the 2T-NOMA-TWRN scheme. Surprisingly, the performance of the 3T-OMA-TWRN scheme can significantly surpass that of the 2T-NOMA-TWRN scheme in certain situations, depending on the rate and SNR regimes and the network geometry. Furthermore, the 3T-NOMA-TWRN scheme significantly reduces the TWRN performance sensitivity to the location of relay node, which is a critical concern in both the 3T-OMA-TWRN and 2T-NOMA-TWRN schemes, especially in the latter case.INDEX TERMS Non-orthogonal multiple access (NOMA), power allocation, superposition coding, successive interference cancelation, two-way relay network (TWRN).

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“…A two-way relay channel is considered in [35] for cooperative relaying nonorthogonal multiple access (CR-NOMA) system where power-splitting relaying (PSR) and time-switching relaying (TSR) protocols are employeed between users. The author first derives system outage probability and throughput with many other performance metrics in order to evaluate behaviour in different measurmants conditions.…”

Section: Introductionmentioning

confidence: 99%

BER-performance evaluation for 5G-PD-NOMA system in multipath communication channels

K. Abboud,

Azeez,

J. Abbass

2024

TELKOMNIKA

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In this paper, a bit error rate (BER) performance is evaluated for power domain non-orthogonal multiple access (PD-NOMA) system. The performance test is examined considering; additive white gaussian noise (AWGN), flat and long-term evolution (LTE)-multipath selective channels such as; pedestrian channel model (EPA), vehicular channel model (EVA), and typical urban model (ETU). The proposed system considering two user equipment's (UE1 and UE2) with a single base station (BS) for downlink channel. Two different powers were allocated to each user according to their positions from the BS. The superposition coding process is performed with successive-interference-cancelation (SIC) at both transmitter/receiver sides respectively to distinguish the desired received signal. The performance evaluations proves that the degree of power allocated to each user plays a significant rule in frequency selection environments. UE1 has a better BER performance than UE 2 by about 9 dB in EPA, 6 dB in EVA, and 7 dB in ETU environments respectively at a BER of 10 -3 . However, in flat fading environment, the distance for each user represents a significant factor affecting the BER performance, where, UE 2 has a better BER performance than UE 1 by about 10 dB at a BER of 10 -3 .

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SWIPT-Based Cooperative NOMA for Two-Way Relay Communications: PSR versus TSR

Cited by 8 publications

References 22 publications

Performance Analysis of Device-to-DeviceCommunication Using Decode-and-Forward-BasedMultiple Relay in the Presence of Co-ChannelInterference

Performance Analysis of Device-to-DeviceCommunication Using Decode-and-Forward-BasedMultiple Relay in the Presence of Co-ChannelInterference

Performance Analysis of NOMA-Based Transmission in Two-Way Relay Network

BER-performance evaluation for 5G-PD-NOMA system in multipath communication channels

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