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2023, Volume 24, Issue 7

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Frontiers of Information Technology & Electronic Engineering >> 2023, Volume 24, Issue 7 doi: 10.1631/FITEE.2200648

Satellite Internet of Things: challenges, solutions, and development trends

Affiliation(s): College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China; Institute of Advanced Technology, Zhejiang University, Hangzhou 310027, China; Innovation Academy for Microsatellites of Chinese Academy of Sciences, Shanghai 201210, China; Shanghai Spacecom Satellite Technology Ltd., Shanghai 201612, China; less

Received: 2022-12-18 Accepted: 2023-07-24 Available online: 2023-07-24
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Abstract

Satellite (IoT) is a promising way to provide seamless coverage to a massive number of devices all over the world, especially in remote areas not covered by cellular networks, e.g., forests, oceans, mountains, and deserts. In general, satellite IoT networks take satellites as access points, which solves the problem of wide coverage, but leads to many challenging issues. We first give an overview of satellite IoT, with an emphasis on revealing the characteristics of IoT services. Then, the challenging issues of satellite IoT, i.e., , wide coverage, high mobility, low power, and stringent delay, are analyzed in detail. Furthermore, the possible solutions to these challenges are provided. In particular, new massive access protocols and techniques are designed according to the characteristics and requirements of satellite IoT. Finally, we discuss several development trends of satellite IoT to stimulate and encourage further research in such a broad area.

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