LEO Satellite Constellation for Internet of Things

被引：415

作者：

Qu, Zhicheng ^{[1
]}

Zhang, Gengxin ^{[1
]}

Cao, Haotong ^{[1
]}

Xie, Jidong ^{[1
]}

机构：

[1] Nanjing Univ Posts & Telecommun, Dept Commun Engn, Nanjing 210003, Peoples R China

来源：

IEEE ACCESS | 2017年 / 5卷

基金：

中国国家自然科学基金;

关键词：

Internet of things (IoT); LEO satellite constellation; low-power wide-area network (LPWAN); long range (LoRa); machine-to-machine (M2M) communications; narrow band internet of things (NB-IoT); KA;

D O I：

10.1109/ACCESS.2017.2735988

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

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.

引用

页码：18391 / 18401

页数：11

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