Power Allocation and Performance Analysis of Multiuser NOMA under NYUSIM Channel Model

Mahmood, Asif; Zeeshan, Muhammad

doi:10.1109/iciis47346.2019.9063340

Cited by 14 publications

(8 citation statements)

References 18 publications

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“…• Highlights the significance of accurate power allocation in future NOMA systems, tested using 5G NYUSIM Channel Model. [194] This…”

Section: Special Applications and Scenariosmentioning

confidence: 99%

“…In addition, NYUSIM has also been used to evaluate novel beamforming algorithms, power allocation algorithms, etc., and in studies involving propagation, coverage, and blockage in different mmWave frequency bands. Furthermore, new use cases such as UAV and V2X communications, which exploit the mmWave spectrum, have also been explored using NYUSIM [13], [14], [147], [171]- [184], [186], [187], [189], [191], [193], [194], [197]- [205].…”

Section: Studies Conducted Using Nyusimmentioning

confidence: 99%

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A Tutorial on NYUSIM: Sub-Terahertz and Millimeter-Wave Channel Simulator for 5G, 6G, and Beyond

Poddar,

Ju,

Shakya

et al. 2024

IEEE Commun. Surv. Tutorials

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With the advancement of wireless communication to sub-terahertz (THz) and millimeter-wave (mmWave) bands, accurate channel models and simulation tools are becoming increasingly important for modeling a wide range of frequencies and scenarios. This paper provides a comprehensive tutorial on generating drop-based and spatial consistency-based channels using the open-source MATLAB-based NYU Channel Model Simulator (NYUSIM). NYUSIM is built on extensive real-world radio propagation measurements for the frequency range of 0.5-150 GHz, covering a variety of scenarios such as Urban Microcell (UMi), Urban Macrocell (UMa), Rural Macrocell (RMa), Indoor Hotspot (InH), and Indoor Factory (InF). Additionally, an overview of the evolution of simulators used to design and analyze wireless systems since the early days of cellular communication is also provided. We introduce the most popular types of simulators used in academia and industry, such as Channel Simulators (CSs), Link Level Simulators (LLSs), System Level Simulators (SLSs), and Network Simulators (NSs), to study wireless communication systems for 5G and beyond. Owing to the widespread adoption of the 3rd Generation Partnership Project (3GPP) Stochastic Channel Model (SCM) for channel generation in various simulators, we conduct a comparative analysis between the 3GPP SCM and NYUSIM channel model to highlight their differences. Moreover, NYUSIM's versatility extends beyond its MATLAB implementation, as it can be implemented in various LLSs, SLSs, and NSs, enabling researchers to incorporate realworld measurement-based channels into their simulations. To illustrate this capability, we showcase NYUSIM's implementation in ns-3, a widely used open-source discrete event network simulator. Additionally, we provide several applications of NYUSIM to highlight its potential uses.

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“…• Highlights the significance of accurate power allocation in future NOMA systems, tested using 5G NYUSIM Channel Model. [194] This…”

Section: Special Applications and Scenariosmentioning

confidence: 99%

Section: Studies Conducted Using Nyusimmentioning

confidence: 99%

A Tutorial on NYUSIM: Sub-Terahertz and Millimeter-Wave Channel Simulator for 5G, 6G, and Beyond

Poddar,

Ju,

Shakya

et al. 2024

IEEE Commun. Surv. Tutorials

View full text Add to dashboard Cite

show abstract

“…in a four users per cluster, the signals for UE 1 , UE 2 , UE 3 and UE 4 have phase shifts of 0, π/2, π and 3π/2 respectively. The allocation of power levels is based on the distance of each user as in [16] such that,…”

Section: Figurementioning

confidence: 99%

“…The users with higher distance had significantly better BER performance as compared to users with lower distance. Previous work [16] by the corresponding author investigated the performance of multi-user PD-NOMA under the New York University Simulator (NYUSIM) channel Model [17]. The performance analysis was carried out to determine appropriate power factors for different modulation schemes.…”

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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“…In [17], the fixed and dynamic power allocation (FPA and DPA) strategies were proposed for the static and dynamic PD-NOMA environments. The performance of PD-NOMA was analyzed for multi-user scenarios in [18]. The distance-based power allocation is carried out for two, three, and four-users per-cluster PD-NOMA, and the upper limit on the number of users per cluster was proposed in [19].…”

Section: Introductionmentioning

confidence: 99%

Secure PD-NOMA with Multi-User Cooperation and User Clustering in Both Uplink and Downlink PD-NOMA

et al. 2022

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The power domain non-orthogonal multiple access (PD-NOMA) scheme has gained tremendous interest with the multiple access behavior for fifth-generation (5G) wireless communication. Although the overall performance is improved through accurate power distribution among users’ signals, it depends on the user clustering strategy. Moreover, the PD-NOMA communication is not completely secured due to its broadcast nature, which is still a major problem. This paper presents a novel low-complexity short code-based technique utilized by the registered users and the 5G base station (gNodeB) for communication. By doing so, the PD-NOMA scheme is made secure from unregistered users or eavesdroppers. We proposed a three-step user clustering strategy that selects the best cluster among all the possible clusters to improve the overall performance. The proposed clustering strategy achieves a low outage probability in PD-NOMA systems. Moreover, it uses a multi-user decode and forward cooperative relaying scheme with PD-NOMA (Cop-PD-NOMA) to increase the coverage range of the gNodeB. In the multi-user Cop-PD-NOMA, the strong users (near users) are used as relay stations to aid the weak users (far users) by the decode and forward (D&F) technique. The proposed work provides a secure PD-NOMA network and the most effective user clustering approach during validation. The bit-error-rate (BER) comparisons demonstrate that multi-user cooperation outperforms single-user cooperation in Cop-PD-NOMA communication.

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Power Allocation and Performance Analysis of Multiuser NOMA under NYUSIM Channel Model

Cited by 14 publications

References 18 publications

A Tutorial on NYUSIM: Sub-Terahertz and Millimeter-Wave Channel Simulator for 5G, 6G, and Beyond

A Tutorial on NYUSIM: Sub-Terahertz and Millimeter-Wave Channel Simulator for 5G, 6G, and Beyond

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

Secure PD-NOMA with Multi-User Cooperation and User Clustering in Both Uplink and Downlink PD-NOMA

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