Effect of Imperfect SIC in Non-Orthogonal Multiple Access (NOMA) over Rayleigh Fading Channels

Herfiah, Shita; Iskandar, Iskandar

doi:10.1109/icwt52862.2021.9678500

Cited by 6 publications

(4 citation statements)

References 8 publications

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“…The work in Ref. [26] focuses on errors in practical scenario which can result in imperfect SIC. The work uses a residual error of 10 −2 , 10 −3 and 10 −4 , as the value of residual error increases the available capacity or in other words spectral efficiency decreases [27].…”

Section: Work In Literaturementioning

confidence: 99%

“…The optimisation of energy efficiency (EE) is one of the important objectives of the 5G network. The EE for cooperative NOMA [26, 27] depends on data rate of the user and the power consumption of the relay to achieve it. The EE of any q ′ user at the time signal is received given by the following:

{EE}_{{q}^{\prime }}=\frac{{C}_{{q}^{\prime },n}}{{P}_{utilization}}

…”

Section: System Analysismentioning

confidence: 99%

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Evaluation of antenna and relay scheme for cooperative non‐orthogonal multiple access

Balyan

2023

IET Networks

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An antenna selection followed by a relay selection scheme (ASRS) is proposed for cooperative non‐orthogonal multiple access (NOMA)‐based network. The proposed work selects an antenna to maximise the instantaneous rate of poor channel condition users while providing good quality of services (QoS). The outage probability performance of the proposed scheme is plotted for different antenna configuration while varying the SNR and distance with variable number of antennas and available relays. The fairness factor of the proposed work is also discussed, considering three different density areas. The proposed scheme is compared with novel schemes in literature for average sum rate and average energy efficiency to show its superiority.

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Section: Work In Literaturementioning

confidence: 99%

{EE}_{{q}^{\prime }}=\frac{{C}_{{q}^{\prime },n}}{{P}_{utilization}}

…”

Section: System Analysismentioning

confidence: 99%

Evaluation of antenna and relay scheme for cooperative non‐orthogonal multiple access

Balyan

2023

IET Networks

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“…This selfinterference is mainly reflected in the fact that the bit error judgement for the low-power user will be seriously influenced by the high-power user. In the NOMA-based terrestrial communication systems, the researches on selfinterference are mostly focusing on successive interference cancellation (SIC) at the NOMA receiver [11][12][13]. In [11], the efficiency of SIC in terms of signal separation for different power allocation scaling factors was discussed.…”

Section: Introductionmentioning

confidence: 99%

“…Ref. [12] investigated the performance of NOMA systems under ideal SIC and non-ideal SIC conditions in Rayleigh fading channels. Particularly, Ref.…”

Section: Introductionmentioning

confidence: 99%

Solution for Self-Interference of NOMA-Based Wireless Optical Communication System in Underwater Turbulence Environment

et al. 2023

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Non-orthogonal multiple access (NOMA) is a multiple access technology of great potential and it has superior performance in underwater wireless optical communications (UWOC). In this paper, we investigate the self-interference problem caused by the superimposed transmission of NOMA-based wireless optical communication system in the underwater turbulent environment, and then propose an alternating composite phase shift (ACPS) coding scheme based on constellation optimization, which can effectively eliminate the decoding error caused by the self-interference within the NOMA paired group. To enhance the optimization efficiency of ACPS in the medium-and strong-turbulence environments, we design a goldensection-approach-based power allocation (GSPA) algorithm that minimizes the bit error rate (BER). The simulation results show that the BER of the low-power user within the NOMA paired group can be reduced by up to 3 orders of magnitude in the ACPS-based UWOC-NOMA system compared to the conventional UWOC-NOMA system. In addition, the proposed GSPA algorithm fully takes into account the light-intensity scintillation caused by the ocean turbulence, which not only significantly reduces the average BER of the NOMA system, but also accelerates the convergence rate.INDEX TERMS Non-orthogonal multiple access, underwater wireless optical communications, alternating composite phase shift, golden-section-approach-based power allocation, bit error rate

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Perfect and imperfect successive interference cancellation for channel decoding in downlink visible light non-orthogonal multiple access network

Ngene

Thakur

Singh

2023

Optik

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Effect of Imperfect SIC in Non-Orthogonal Multiple Access (NOMA) over Rayleigh Fading Channels

Cited by 6 publications

References 8 publications

Evaluation of antenna and relay scheme for cooperative non‐orthogonal multiple access

Evaluation of antenna and relay scheme for cooperative non‐orthogonal multiple access

Solution for Self-Interference of NOMA-Based Wireless Optical Communication System in Underwater Turbulence Environment

Perfect and imperfect successive interference cancellation for channel decoding in downlink visible light non-orthogonal multiple access network

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