LEO Satellite Constellation for Internet of Things

By Zhicheng Qu, Gengxin Zhang, Haotong Cao, Jidong Xie. IEEE Access, 2017

505 citations recorded by the source corpus.

Internet of Things (IoT) is one of the evolutionary directions of the Internet. This paper focuses on the low earth orbit (LEO) satellite constellation-based IoT services for their irreplaceable functions. In many cases, IoT devices are distributed in remote areas (e.g., desert, ocean, and forest) in some special applications, they are placed in some extreme topography, where are unable to have direct terrestrial network accesses and can only be covered by satellite. Comparing with the traditional geostationary earth orbit (GEO) systems, LEO satellite constellation has the advantages of low propagation delay, small propagation loss and global coverage. Furthermore, revision of existing IoT protocol are necessary to enhance the compatibility of the LEO satellite constellation-based IoT with terrestrial IoT systems. In this paper, we provide an overview of the architecture of the LEO satellite constellation-based IoT including the following topics: LEO satellite constellation structure, efficient spectrum allocation, heterogeneous networks compatibility, and access and routing protocols.

Subfields: Aerospace Engineering, Computer Networks and Communications, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/e713cc2676a6361fedd226b2fe3298752a958da6

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Citations in the corpus

The Road Towards 6G: A Comprehensive Survey (2021, background): “On the other hand, geostationary Earth orbit (GEO) satellites are expensive to deploy and their capacity is limited to several Gbps per satellite [51], which is dedicated only for high-end users such as maritime and aeronautic industries.”
CubeSat Communications: Recent Advances and Future Challenges (2019, methodology): “In this regard, an architecture for an IoT-based satellite system consisting of a LEO Flower constellation made up of 35 satellites in seven orbital planes with two additional polar satellites, was outlined in [154] to assure global coverage.”
Broadband LEO Satellite Communications: Architectures and Key Technologies (2019, background): “The essentials of constellation include the type of orbit, the altitude of the orbit, the number of orbits, the number of satellites in each orbit, and the satellite phase factor between different orbit planes [11].”
Non-Terrestrial Networks in 5G & Beyond: A Survey (2020, unknown): “The IoST vision has been introduced in [98] to offer global connectivity by overcoming the terrestrial base station limitations [99] with low-cost and ﬂexible solutions by combining SDN and NFV paradigms.”