A System Simulator for 5G Non-Terrestrial Network Evaluations

Puttonen, Jani; Sormunen, Lauri; Martikainen, Henrik; Rantanen, Sami; Kurjenniemi, Janne

doi:10.1109/wowmom51794.2021.00054

Cited by 18 publications

(10 citation statements)

References 14 publications

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“…In Finland, Magister Solutions Ltd has developed the Satellite Network Simulator 3 (SNS3) [110] as part of an ESA ARTES project to support network simulations. Magister has also created a system simulator for 5G NTN evaluations [111] to support 3GPPbased SatCom development. In addition, there are studies from the University of Oulu on the use of 5G NR-over-SatCom links [112].…”

Section: A Constellation Design and Simulationsmentioning

confidence: 99%

Sustainable Satellite Communications in the 6G Era: A European View for Multilayer Systems and Space Safety

et al. 2022

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During the New Space era small countries are becoming important players in the space business. While space activities are rapidly increasing globally, it is important to make operations in a sustainable and safe way in order to preserve satellite services for future generations. Unfortunately, the sustainability aspect has been largely overlooked in the existing surveys on space technologies. As a result, in this survey paper, we discuss the multi-layer networking approaches in the 6G era specifically from the sustainability perspective. Moreover, our comprehensive survey includes aspects of some interesting industrial, proprietary, and standardization views. We review the most important regulations and international guidelines and revisit a three-dimensional architecture vision to support the sustainability target for a variety of application areas. We then classify and discuss space safety paradigms that are important sustainability enablers of future satellite communications. These include space traffic management, debris detection, environmental impacts, spectrum sharing, and cyber security aspects. The paper also discusses advances towards a planned European connectivity constellation that could become a third flagship infrastructure along with the Galileo and Copernicus systems. Finally, we define potential research directions into the 2030s.INDEX TERMS Aerospace engineering, Low earth orbit satellites, Radio spectrum management, Spaceborne radar

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Section: A Constellation Design and Simulationsmentioning

confidence: 99%

Sustainable Satellite Communications in the 6G Era: A European View for Multilayer Systems and Space Safety

et al. 2022

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“…Magister Solutions Ltd has developed a 5G NTN extension [5] to ns-3 [39]. The extension can be used in system level simulations of standardization processes (e.g., in 3GPP Release 17 [40], as well as in later releases).…”

Section: G Ntn Simulatormentioning

confidence: 99%

“…5G LENA [43] is one of such modules, which is evolvement of the work done before in LENA [44], the LTE/EPC Network Simulator. According to [5], 5G LENA simulator was chosen as the starting point of the 5G NTN Simulator development, because of the availability, maintenance, community support, and previous experience and competence. The NTN extension includes key features to model non-terrestrial networks.…”

Section: G Ntn Simulatormentioning

confidence: 99%

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Multi-Connectivity for User Throughput Enhancement in 5G Non-Terrestrial Networks

Mikko

Martikainen

Sormunen

et al. 2022

2022 18th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob)

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Fifth Generation (5G) wireless systems aim to confront with such use-cases as Ultra-Reliable Low Latency Communications (URLLC), massive Machine-Type Communications (mMTC) and enhanced Mobile Broadband (eMBB). To meet the increasing throughput and reliability demands, satellites may be used to complement the 5G Terrestrial Networks (TNs), e.g., in rural areas, in case of emergencies or in areas with peak demands. The EU funded "Dynamic spectrum sharing and bandwidth-efficient techniques for high-throughput MIMO Satellite systems" (DYNASAT) project focuses on research on techniques which aim to improve reliability and throughput in Non-Terrestrial Networks (NTNs). Multi-Connectivity (MC), where a user can be connected to multiple base stations simultaneously, is one of the bandwidth efficient techniques under the research in the project. In this master's thesis, the focus is on MC to improve users' experienced throughput. First, a study of relevant specifications and algorithms is performed. Then, MC feature is implemented to a 5G NTN simulator. The simulation results indicate that there exist scenarios where using MC in 5G NTNs is beneficial. The significance of this thesis lies in the fact that there exist no service providers that offer system level simulations for 5G NTNs with MC support and packet-level precision.

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“…To model 5G networks, ns-3 has been extended with 5G LENA [13], which models physical and Medium Access Control layers of NR and implements terrestrial propagation and channel models of 3GPP TR 38.901 [15]. To support NTN-specific features, 5G LENA and ns-3 were extended by adding support for 3GPP TR 38.811 [1] based channel and antenna modeling along with the global coordinate system [14]. Finally, to support hybrid TN and NTN scenarios, support for coordinate and direction translations was added to apply terrestrial channel modeling for terrestrial links (gNB-to-UE) and non-terrestrial channel models for non-terrestrial links (satellite-to-gNB, satellite-to-UE).…”

Section: G Ntn Simulatormentioning

confidence: 99%

Coexistence of Terrestrial and Non-Terrestrial Networks on Adjacent Frequency Bands

Martikainen

Sormunen

Puttonen

et al. 2022

Preprint

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This paper presents the latest achievements concerning 3GPP Release-17 adjacent band coexistence simulation work on 5G New Radio Non-Terrestrial Networks (NTNs) for satellite communications. For the first time, 3GPP considered the introduction of Mobile Satellite Service (MSS) frequency bands for 3GPP User Equipment (UE) direct connectivity with satellites and had to consider the coexistence in adjacent bands with Terrestrial Networks (TNs). This paper will further explain the most challenging and the main surprising outcomes of this work, which opened new market opportunities for both terrestrial and non-terrestrial stakeholders. The main conclusions can be summarized as (1) NTN UE can reuse the current requirements of the TN UE, (2) the satellite connectivity does not require a dedicated satellite waveform, and (3) TN can co-exist with NTN on adjacent channels with relaxed ACIR requirements for the tested simulation scenario.

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A System Simulator for 5G Non-Terrestrial Network Evaluations

Cited by 18 publications

References 14 publications

Sustainable Satellite Communications in the 6G Era: A European View for Multilayer Systems and Space Safety

Sustainable Satellite Communications in the 6G Era: A European View for Multilayer Systems and Space Safety

Multi-Connectivity for User Throughput Enhancement in 5G Non-Terrestrial Networks

Coexistence of Terrestrial and Non-Terrestrial Networks on Adjacent Frequency Bands

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