The Performance of Chirp Signal Used in LEO Satellite Internet of Things
- 4 June 2019
- journal article
- research article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Communications Letters
- Vol. 23 (8) , 1319-1322
Abstract
The technology of Chirp Spread Spectrum (CSS) has been developed for decades, widely known to be used in the field of radar and sonar. In recent years, CSS is used in IEEE 802.15.4a and LoRa (Long Range) Internet of Things (IoT) called LoRa modulation. On the other hands, CSS has never been used in Low-Earth-Orbit (LEO) satellite communication systems for low-data-rate transmission (IoT). CSS applied in LoRa as a kind of successful commercial IoT technology will promote us to do research on its application in satellite communication for IoT. There are some new types of chirp signal with the same chirp rate to realize multiple access in these years. Based on these, this letter is on the research of these kinds of chirp signal in satellite multiple access communication systems.Keywords
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