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ESTIMATION OF ENERGY INTENSITY OF SUBSCRIBER RADIO LINES AND INFORMATION CAPACITY OF THE LEO SATELLITE SYSTEM OF THE INTERNET OF THINGS
Nguyen Duc Anh, Moscow Institute of Physics and Technology, Moscow, Russia, anhforce@gmail.com
Abstract
It is clear that the importance and impact of the Internet of Things on all areas of life is undeniable today. To implement the connection and exchange of information between objects, one cannot fail to mention wireless networks, LPWAN networks … However, the above networks still have some limitations that need to be overcome, such as coverage areas, signal delay and some other special features. Therefore, research and development of a satellite system with the IoT function is very promising and relevant. In addition, in order to compete with terrestrial networks in terms of equipment cost, service cost, and ease of operation and use, it is necessary to create satellite networks to work with terrestrial networks. The result of the analysis of LPWAN technologies in terrestrial networks showed that Lora technology is the most suitable for working with a satellite system. The article presents an assessment of the energy of subscriber radio lines when the satellite system is compatible with the Lora network. It is shown that the protection against interference on the «Earth-spacecraft» link is not less than 6-8 dB (worst case). The required reserves in the subscriber radio lines of the OFF-Line mode have been determined. Calculations of the information capacity of the IoT satellite system were carried out and the maximum data package of the consumer’s subscriber facility was determined.
Keywords: Internet of Things, satellite IoT, LPWAN networks, LoRa technology
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Information about author:
Behrooz Daneshmand, graduate student, Phystech School of Radio Engineering and Computer Technologies, Moscow Institute of Physics and Technology, Moscow, Russia