Performance analysis of downlink power domain NOMA under fading channels

Sadia, Haleema; Zeeshan, Muhammad; Sheikh, Shahzad Amin

doi:10.1109/elektro.2018.8398247

Cited by 43 publications

(23 citation statements)

References 19 publications

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“…Power domain Resource allocation [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35] Energy harvesting and transfer [36][37][38][39][40][41][42][43][44][45][46][47][48][49] Interference cancellation techniques [50][51][52][53][54][55] Sleep/wake modes [56][57][58][59][60] Code domain Sparse code multiple access (SCMA) [61,62] Space time block coding (STBC) [56,63] Polar codes [64][...…”

Section: Domain Technology Citationsmentioning

confidence: 99%

“…However, there is room for energy efficiency enhancement using code domain NOMA as well. It is mentioned in [61], that out of the tested NOMA schemes, sparse code multiple access (SCMA) show lowest bit error rate and outage probability at high interference channels and utilizes low transmit power. Hence, SCMA falls under an energy efficient spectrum efficient algorithm that requires further research insight.…”

Section: Sparse Code Multiple Accessmentioning

confidence: 99%

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A New Green Prospective of Non-orthogonal Multiple Access (NOMA) for 5G

et al. 2020

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Energy efficiency is a major concern in the emerging mobile cellular wireless networks since massive connectivity is to be expected with high energy requirements from the network operators. Non-orthogonal multiple access (NOMA) being the frontier multiple access scheme for 5G, there exists numerous research attempts on enhancing the energy efficiency of NOMA enabled wireless networks while maintaining its outstanding performance metrics such as high throughput, data rates and capacity maximized optimally.The concept of green NOMA is introduced in a generalized manner to identify the energy efficient NOMA schemes. These schemes will result in an optimal scenario in which the energy generated for communication is managed sustainably. Hence, the effect on the environment, economy, living beings, etc is minimized. The recent research developments are classified for a better understanding of areas which are lacking attention and needs further improvement. Also, the performance comparison of energy efficient, NOMA schemes against conventional NOMA is presented. Finally, challenges and emerging research trends, for energy efficient NOMA are discussed.

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Section: Domain Technology Citationsmentioning

confidence: 99%

Section: Sparse Code Multiple Accessmentioning

confidence: 99%

A New Green Prospective of Non-orthogonal Multiple Access (NOMA) for 5G

et al. 2020

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“…For conciseness, we denote |h BF | 2 , |h BN | 2 and |h NF | 2 by x, y and z, respectively, in the rest of the paper. According to (5), we can arrive at…”

Section: A-1: Probability Of the Events In The Noma Frameworkmentioning

confidence: 99%

“…In this way, the users remove as much interference as possible and then detect their desired signals. Particularly, the work in [4] revealed that NOMA can achieve a 30% system-level performance improvement than orthogonal multiple access (OMA), while [5] investigated the bit error rate of NOMA downlink transmissions under different channel fading types. To further improve the quality-of-service (QoS), the authors in [6] proposed a cooperation scheme in the NOMA framework, which can attain a diversity order of K at all the K users.…”

Section: Introductionmentioning

confidence: 99%

Impartial SWIPT-Assisted User Cooperation Schemes

Chen

Ding

Wang

et al. 2020

IEEE Trans. Wireless Commun.

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In this paper, we propose an impartial simultaneous wireless information and power transfer (SWIPT)assisted cooperation mechanism for a non-orthogonal multiple access (NOMA) downlink scenario.Specifically, both a cell-center user and a cell-edge user apply the power-splitting technique and utilize the harvested energy to forward the other user's information on the premise of successful decoding of their own information. Both analytical and numerical results show that the proposed impartial user cooperation mechanism (IUCM) outperforms the traditional partial cooperation mechanism in terms of outage probability, diversity order and diversity-multiplexing trade-off (DMT). For comparison, we further incorporate the IUCM into an orthogonal frequency-division multiple access (OFDMA) framework, which is shown to preserve the same diversity order, while has a worse but more flexible DMT performance in comparison with the IUCM in the NOMA framework. Although the IUCM in OFDMA has a worse outage performance, it is proved that it has the same optimal system outage probability with the IUCM in NOMA when the relaying channel between the two users is error-free.

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“…There are several studies in the literature that investigate PD-NOMA performance under different channel conditions. Performance analysis of two users downlink PD-NOMA under Rayleigh and Rician fading channels with different code rates and modulation schemes was carried out by Sadia et al in [11]. The performance of Re-configurable Intelligent Surfaces (RISs) assisted downlink PD-NOMA was analyzed by Thirumavalavan et al in [12].…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Multi-User Downlink PD-NOMA Under SUI Fading Channel Models

Mahmood¹,

Khan²,

Hussain³

et al. 2021

IEEE Access

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Power Domain Non Orthogonal Multiple Access (PD-NOMA) is a multiple access technique that offers spectral efficiency, low latency and user fairness in 5G networks. This paper evaluates the performance of multi-user downlink PD-NOMA in suburban environments under SUI fading channels. Baseband modulated user signals with phase shifts are allocated power levels in accordance with users distance before the superposition coding is performed at the base station. A multi-level successive interference cancellation (SIC) is performed at the receivers. Bit error rate (BER) performance against signal-to-noise ratio (SNR) for up to four users per cluster is compared for all the SUI models corresponding to different suburban terrains with varying vegetation densities. An upper limit on number of users per cluster that are supported at a benchmark BER and SNR values is also evaluated.

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Performance analysis of downlink power domain NOMA under fading channels

Cited by 43 publications

References 19 publications

A New Green Prospective of Non-orthogonal Multiple Access (NOMA) for 5G

A New Green Prospective of Non-orthogonal Multiple Access (NOMA) for 5G

Impartial SWIPT-Assisted User Cooperation Schemes

Performance Analysis of Multi-User Downlink PD-NOMA Under SUI Fading Channel Models

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