Modelling discontinuous LEO satellite constellations: impact on the machine-to-machine traffic and performance evaluation

Chelle, Hugo; Crosnier, Michael; Deslandes, Vincent; Dhaouz, Riadh; Beylot, André‐Luc

doi:10.1109/asms-spsc.2016.7601544

Cited by 5 publications

(4 citation statements)

References 5 publications

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“…These simplifications do not significantly impact the results obtained since the scenario reflects a straightforward but representative approach in which there are always nodes entering/leaving the satellite coverage. Furthermore, the different link durations observed by each node can be compensated in the successive passes of the satellite; in a practical network, a typical LEO provides different line-ofsight angles between the satellite and the nodes in each pass [41]. To improve future simulations, we will address these cases through heterogeneously distributed nodes on the ground and will consider line-of-sight angles that generate different link durations.…”

Section: Simulation Resultsmentioning

confidence: 99%

RESS-IoT: A Scalable Energy-Efficient MAC Protocol for Direct-to-Satellite IoT

Ortigueira¹,

Fraire

Becerra³

et al. 2021

IEEE Access

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The Internet of Things (IoT) is enabling unprecedented applications based on the transport of small data volumes to and from constrained devices. When end-devices or sensor nodes are located in very remote zones with inaccessible topography, Direct-to-Satellite IoT (DtS-IoT) has been proposed as an appealing solution. In DtS-IoT, isolated sensor nodes can directly relay data to and from inexpensive nanosatellites (i.e., CubeSats). Because both sensor nodes and CubeSats operate on very limited energy supply and storage, the efficient management of power-hungry communication sub-systems is of the essence. Thus, specific Medium Access Control (MAC) protocols are needed to ensure the minimal overhead while considering the DtS-IoT scalability and channel dynamics. In this work, we contribute with REserveand-Send Sift-IoT (RESS-IoT), a scalable and energy-efficient DtS-IoT MAC protocol, combining LoRa physical layer with a novel link scheduling approach. Extensive simulations demonstrate that our solution provides up to four times energy savings in the satellite, and up to seven times on the sensor node on ground, with respect to state-of-the-art IoT protocols.INDEX TERMS Direct-to-Satellite IoT (DtS-IoT), Energy efficiency, LoRa, Medium access control (MAC), Nanosatellite

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Section: Simulation Resultsmentioning

confidence: 99%

RESS-IoT: A Scalable Energy-Efficient MAC Protocol for Direct-to-Satellite IoT

Ortigueira¹,

Fraire

Becerra³

et al. 2021

IEEE Access

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Section: Network Architecturementioning

confidence: 99%

“…To reduce the connection delay of nanosatellite constellation, Marcano and Jacobsen 75 studied random linear-network coding (RLNC) and proposed an RLNC transmission scheme. Chelle et al 76 analyzed M2M communication extensively from the perspective of satellite, and defined a new traffic modeling for M2M communication from the perspective of the satellite.…”

Section: Non-physical Layer Technologies Of Satellite Iotmentioning

confidence: 99%

A review on non-terrestrial wireless technologies for Smart City Internet of Things

Wang

Miao

et al. 2020

International Journal of Distributed Sensor Networks

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Smart City Internet of Things will become a fundamental infrastructure to support massive machine-type communications between the widely deployed sensors serving big cities. Since there exists many location constraints for the existing terrestrial Internet of Things, the non-terrestrial Internet of Things sheds light on breaking these limits. Therefore, this article conducts a comprehensive survey on non-terrestrial Internet of Things technologies for Smart City, which is an important complement to terrestrial Internet of Things. We first present the application scenarios of Internet of Things and point out where the existing terrestrial Internet of Things cannot work perfectly. Two non-terrestrial Internet of Things technical proposals are then introduced, namely satellite Internet of Things and unmanned aerial vehicle Internet of Things. However, the focuses of these non-terrestrial Internet of Things are distinct, that is, the major problems of satellite and unmanned aerial vehicle Internet of Things are the high dynamic nature of channel and high maneuverability of unmanned aerial vehicles, respectively. The key technologies for satellite and unmanned aerial vehicle Internet of Things are then reviewed separately. Both physical and non-physical layer technologies are surveyed for satellite Internet of Things, and the route planning is mainly investigated for the unmanned aerial vehicle Internet of Things. Finally, we draw a conclusion and give some potential research directions of non-terrestrial Internet of Things.

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“…Вопросы моделирования современных систем спутниковой связи исследуются в зарубежных научных публикациях [1][2][3][4][5][6][7][8].…”

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Simulation of a Space Communication Signal with Non-Gaussian Correlated Distortions

Silin¹,

Dyadunov²

2020

Rocket-space device engineering and information systems

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Аннотация. В статье рассматривается вопрос вычисления теоретически достижимой скорости передачи информации по спутниковому каналу связи в общем виде и приводится результат для одного типа сигнала с видом модуляции QPSK. В отличие от оценки пропускной способности канала связи по Шеннону, которая достигается в канале с аддитивным белым гауссовским шумом при использовании абстрактных идеальных сигналов, предлагаемая оценка оперирует реальными используемыми на практике сигналами и реалистичной моделью помех. В построенной модели канала связи учитываются коррелированные мультипликативные амплитудно-фазовые искажения, вызванные многолучевым распространением, и аддитивные помехи. Найдена функция плотности распределения выборки сигнала с построенной моделью. Разработан эффективный алгоритм для вычисления дифференциальной энтропии сигнала с такой моделью. С помощью методов теории информации вычислена оценка предельно достижимой скорости передачи информации по рассмотренному каналу связи. На примере системы спутниковой связи Iridium продемонстрирована работоспособность разработанных методов оценки предельно возможной скорости передачи информации по каналу связи с выбранной моделью. Построены зависимости предельно возможной скорости передачи информации от мощности помех при работе этой системы в различных условиях. Сравнение полученных зависимостей с аналогичными зависимостями для стандартной модели канала связи с аддитивным белым гауссовским шумом показывает, что дополнительные учтенные факторы в виде коррелированных мультипликативных амплитудных и фазовых помех оказывают существенное влияние на полученную оценку предельно возможной скорости передачи информации. Ключевые слова: низкоорбитальная спутниковая связь, моделирование канала связи, пропускная способность, мультипликативный шум, фазовый шум, коррелированный шум

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Modelling discontinuous LEO satellite constellations: impact on the machine-to-machine traffic and performance evaluation

Cited by 5 publications

References 5 publications

RESS-IoT: A Scalable Energy-Efficient MAC Protocol for Direct-to-Satellite IoT

RESS-IoT: A Scalable Energy-Efficient MAC Protocol for Direct-to-Satellite IoT

A review on non-terrestrial wireless technologies for Smart City Internet of Things

Simulation of a Space Communication Signal with Non-Gaussian Correlated Distortions

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