Results 21 to 30 of about 3,775 (236)
Research on Terminal Access Performance of Beam-Hopping Satellite in IoT Scenario
Sensors, 2023 In recent years, low-orbit satellites have become an important development direction in satellite IoT systems. The number of terminals is large and data collisions occur frequently in the low-orbit satellite IoT scenario.
Yulei Nie, Gengxin Zhang
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Application and Performance Evaluation of Resource Pool Architecture in Satellite Edge Computing
Aerospace, 2022 Satellites will play a vital role in the future of the global Internet of Things (IoT); however, the resource shortage is the biggest limiting factor in the regional task of massiveequipment in the IoT for satellite service. Compared with the traditional
Junxiang Qin +4 more
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Enhanced Communications on Satellite-based IoT Systems to Support Maritime Transportation Services
Sensors, 2022 Maritime transport has become very important due to its ability to internationally unite all continents. In turn, during the last two years, we have observed that the increase of consumer goods has resulted in global shipping deadlocks. In addition, the future goes through the role of ports and efficiency in maritime transport, with the aim of ...
Victor Monzon Baeza +3 more
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Research on the NB-IoT Random Access in LEO Satellite IoT
天地一体化信息网络, 2021 Narrowband internet of things (NB-IoT) technology is widely used in data communications for a large number of low-speed and low-power devices, but it is diff cult to provide services for remote areas that cannot be covered by terrestrial networks.With ...
Haodong LIU +4 more
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Practical Security Considerations For IoT Systems Over Satellite
, 2019 Currently, the forecast for the European market for IoT is a yearly 19.8% increase up to reach $241 billion in 2025. This strong growing will be concentrated in verticals from manufacturing, utilities, retail and transportation [1], [2]. However, in order to monetize the potential services over IoT it is necessary to guarantee the security of the ...
Bas, Joan, Pérez Neira, Ana Isabel
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Distributed data storage and transmission for space Internet of things
物联网学报, 2018 Based on the concepts and related techniques of Internet of things (IoT),tracking the development tendency of the satellite IoT and LEO constellation communication system abroad,and the deployment of the integrated satellite-terrestrial information ...
Qinyu ZHANG +3 more
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Energy-Efficient Irregular Repetition Slotted ALOHA for IoT Satellite Systems [PDF]
2024 IEEE International Conference on Communications Workshops (ICC Workshops)There is an urgent need to enhance random access schemes, specifically designed to support massive Internet of things communications in satellite systems. These scenarios are limited by two key factors: the lifespan of device batteries and the scarcity of satellite resources. To overcome such limitations, we propose to apply per replica power diversity
Recayte, Estefania +2 more
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Radiative Thermal Management for Extreme Environments: Mechanisms and Design Strategies
Advanced Materials, EarlyView.In this review, we discuss the fundamental mechanisms of radiative cooling and solar heating, material and structural design strategies, hybrid approaches integrating additional heat transfer pathways, and durability‐oriented designs addressing environmental stresses.
Hyung Rae Kim +5 more
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Advanced Materials, EarlyView.Self‐invalidating multilayer physical unclonable functions (PUFs) integrate fingerprint‐like metal nanopattern bilayers from block copolymer templates with highly reactive reduced graphene oxide (rGO) interlayers. This tamper‐responsive architecture blocks all unauthorized physical and chemical replication attempts while autonomously deactivating ...
Gyu Hui Jo +7 more
wiley +1 more source
Research on the application of LEO satellite communication and Internet of things
物联网学报, 2019 Relying on the demands of Internet of things application,a detailed review on the status quo of LEO (low earth orbit) satellite communication system was given,and the components of communication system were compared and explained separately.Afterwards ...
Yang LIU +3 more
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