5G K-SimSys: Open/Modular/Flexible System Level Simulator for 5G System

Han, Minsig; Lee, Jae Won; Kang, Chung G.; Rim, Min Joong

doi:10.1109/dyspan.2018.8610417

Cited by 5 publications

(6 citation statements)

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“…The 5G K-SimSys was designed and implemented to provide an open platform and testbed for evaluating the systemlevel performance of 5G standard [9][10][11][12]. One of the key features in 5G K-SimSys is its modular and flexible structure that allows the reusing of the same modules for various system configurations by modifying existing or including additional modules for newly introduced algorithms and/or functionalities.…”

Section: G K-simsys For Massive Mimo: Implementation and Performance Analysismentioning

confidence: 99%

“…Fig. 3 illustrates the overall modular structure of the 5G K-SimSys having five key functionality layers: Simulation Top, Network Configuration, Channel Model, Radio Resource Management, and Link Performance [9][10][11][12]. Furthermore, the functionalities in an individual layer are executed by three different entities, each referred to as an "object."…”

Section: G K-simsys For Massive Mimo: Implementation and Performance Analysismentioning

confidence: 99%

“…Depending on the functional requirements and performance indicators, additional classes of objects can be defined and integrated. For example, two different classes of object MS can be defined when eMBB and uRLLC devices coexist with the different performance indicators, e.g., object MSeMBB for eMBB devices and object MSuRLLC for uRLLC devices [10]. The current modular and flexible structure immediately facilitates extension of the baseline simulator to various scenarios and functional requirements.…”

Section: G K-simsys For Massive Mimo: Implementation and Performance Analysismentioning

confidence: 99%

“…However, the existing few open-source SLSs are not flexible enough to accommodate various operational features and new evaluation scenarios without a significant amount of reprogramming. Therefore, 5G K-SimSys was developed as an SLS framework in a flexible, open, and modular (FOM) form [9][10][11][12]. First of all, 5G K-SimSys is flexible as it can support various types of 5G environments and service scenarios.…”

Section: Introductionmentioning

confidence: 99%

“…The earlier design principles of 5G K-SimSys and its embodiments have been presented with a brief overview in [10] along with its application to evaluation of ultra-reliable & low latency communication in [11] and of massive MIMO [12]. Our objective in the current paper is to present how our SLS has been applied to evaluate the performance of 5G massive MIMO, while providing a comprehensive overview of 5G K-SimSys.…”

Section: Introductionmentioning

confidence: 99%

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5G K-SimSys for Open/Modular/Flexible System-Level Simulation: Overview and its Application to Evaluation of 5G Massive MIMO

2021

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5G K-SimSys is a system-level simulator which has been designed and implemented to provide an open platform and flexible testbed for evaluating the system-level performance of 5G standard. In this paper, we present its design overview with the overall modular structure, including the functionality of the flexible modules. Meanwhile, massive multi-input multi-output (MIMO) is a key technology for improving the spectral efficiency in 5G systems. Because massive MIMO has been standardized in 3GPP Rel-13 (LTE-Advanced Pro), the next generation of massive MIMO standard is now available in Rel-16, a.k.a New Radio (NR) interface, for further improvement of the average spectral efficiency with more antenna elements, over the higher frequency band. In particular, the beam-based air interface for above 6 GHz band involves various antenna configurations and feedback schemes, requiring a more complex testbed for system-level performance evaluation. This paper examines the multi-antenna technologies in 3GPP NR specification to develop its system-level model in 5G K-SimSys in order to test the factors affecting performance in the corresponding environments through various embodiments. In the simulation results, the baseline performance for massive MIMO in NR is evaluated as varying the number of antenna ports and the number of spatial multiplexing layers in various experimental environments. Particularly, the effect of vertical beamforming on interference is evaluated for the full dimension MIMO (FD-MIMO). In order to demonstrate that 5G K-SimSys is an easy-to-design simulators that can facilitate modification and reconfiguration owing to its modularized and customized structure, we consider the proposed bandwise analog beamforming (BAB) scheme. Its modular and flexible structure immediately allows for implementing the virtual modules for bandwise analog beamforming by reusing the elementary modules as hierarchically designed simulator objects.

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Section: G K-simsys For Massive Mimo: Implementation and Performance Analysismentioning

confidence: 99%