5G K-Simulator: Link Level Simulator for 5G

Park, Giseung; Park, Sangwoo; Seo, Jeong Taeg; So, Jungho; Wang, Woowan; Yoo, Seung‐Min; Lim, Seung-Chan; Chung, Jihoon; Cho, Myung-sik; Ha, Daehan; Kang, Joonhyuk; Park, Hyuncheol; Sung, Youngchul

doi:10.1109/dyspan.2018.8610463

Cited by 4 publications

(2 citation statements)

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“…The high‐level software simulation approach is used primarily at the early stages of the product life‐cycle to evaluate the requirements and abstract the system behavior, allowing the relations between various components of the network to be modeled. At this stage, the influence of the utilized algorithm and component behavior in various simulation scenarios is evaluated against measurable performance indicators of the system 2‐5 …”

Section: Introductionmentioning

confidence: 99%

Validation of cloud‐radio access network control unit with intra‐PHY architecture: Hardware‐in‐the‐loop framework based on frequency‐domain channel models

Cisek

Zieliński

2020

Trans Emerging Tel Tech

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In this article, a signal processing framework for hardware‐in‐the‐loop (HIL) validation of the cloud‐radio access network (C‐RAN) control unit (CU) with a crosshaul intra‐PHY architecture split is evaluated. The framework is based on the assumption that data exchanged over the crosshaul interface between the lower and higher parts of the physical layer have the form of frequency‐domain orthogonal frequency division multiplexing (OFDM) subcarriers. Therefore, it is proposed to simulate the effects of a wireless fading channel directly in the frequency domain, instead of the conventionally selected time domain. This approach leads to complexity reduction of the channel simulation model by minimizing the number of required FFT/IFFT operations, at the cost of simulation accuracy in high‐mobility and high‐delay spread scenarios. Analysis of bit error ratio (BER) and block error ratio (BLER) metrics obtained using both time‐ and frequency‐domain channel models is presented in order to validate the proposal and evaluate the accuracy loss caused by the usage of nonideal frequency‐domain models. The frequency‐domain methods are compared against the conventional wide sense stationary uncorrelated scattering (WSSUS) model implementation based on the tapped delay line (TDL). It is shown that the utilization of improved frequency‐domain models instead of the block‐fading model substantially decreases the BER/BLER prediction error in specific scenarios.

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Section: Introductionmentioning

confidence: 99%

Validation of cloud‐radio access network control unit with intra‐PHY architecture: Hardware‐in‐the‐loop framework based on frequency‐domain channel models

Cisek

Zieliński

2020

Trans Emerging Tel Tech

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“…Existem outros simuladores com escopo similar, porém mais limitados, como o 5G-LENA (32), voltado para simulação de redes operando na faixa de ondas milimétricas, ou que não apresentam informações claras sobre a utilização alvo, como o 5G-air-simulator (33). Existem ainda simuladores voltados para aplicações acadêmicas, como o K-SimLink (34), ou simuladores que não estão disponíveis para a comunidade (35).…”

Section: Trabalhos Sobre Simuladores De Camada Físicaunclassified

Simulação De Redes De Acesso Rádio: Posicionamento De Estações Base E Alocação De Recursos Usando Um Critério De Utilidade

Rodrigues¹

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Esta tese apresenta um simulador para avaliação de desempenho de uma rede de acesso por rádio 5G. O simulador, Sama 1 , permite definir os modelos de equipamentos das estações base com múltiplos setores e conformação de feixes (beamforming), os arranjos de estações base da rede, os equipamentos dos usuários, a distribuição de usuários na área de serviço, e pode empregar diferentes algoritmos de alocação dos recursos tempo-frequenciais, dentre outro parâmetros customizáveis. O simulador produz diversos indicadores de desempenho da rede de acesso, como condições de canal, taxas/capacidades de dados, latências, e satisfação dos usuários, em diversos níveis hierárquicos (por estações base, seus setores, ou feixes). As funcionalidades do simulador são demonstradas considerando diversos casos de uso de redes 5G. Propõe-se metodologias para alocação de posições de estações base, isto é, para encontrar bons arranjos de estações base. Propõe-se uma metodologia heurística baseada em critérios de projeto para redes de radiodifusão. Para redes de acesso celular apresenta-se uma metodologia baseada em agrupamentos (clusters) das posições dos UEs. Por fim, nesta tese, apresenta-se um algoritmo de alocação de recursos de tempo-frequência baseado em um critério de utilidade para alocar recursos tempo-frequenciais em redes de acesso por rádio 5G considerando as demandas de capacidade dos usuários. A partir da demanda individual de um terminal, estima-se qual a utilidade em servi-lo e, a partir disso, ordenamse os terminais em um setor e alocam-se os recursos de tempo-frequência. O algoritmo de alocação de recursos apresentado obtém resultados competitivos e muitas vezes melhores que algoritmos de alocação conhecidos.

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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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5G K-Simulator: Link Level Simulator for 5G

Cited by 4 publications

References 0 publications

Validation of cloud‐radio access network control unit with intra‐PHY architecture: Hardware‐in‐the‐loop framework based on frequency‐domain channel models

Validation of cloud‐radio access network control unit with intra‐PHY architecture: Hardware‐in‐the‐loop framework based on frequency‐domain channel models

Simulação De Redes De Acesso Rádio: Posicionamento De Estações Base E Alocação De Recursos Usando Um Critério De Utilidade

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

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