PAGE CONTENTS
Objectives
The objective of the activity was to design, develop and test an air interface enabling the reduction of the RF transmit power of remote Internet of Things (IoT) terminals connected directly to satellites. The targeted improvement was to reduce by an order of magnitude the RF transmit power density at the remote terminal.
Challenges
The main challenges in this activity were to design and implement an IoT satellite gateway receiver that:
-
can detect and demodulate IoT bursts at extremely low signal-to-noise ratios (Ec/No < -40 dB)
-
can detect and demodulate IoT bursts that are transmitted without any timing coordination
-
can detect and demodulate multiple IoT bursts in parallel, where the IoT bursts are (partially) overlapping in time and frequency.
System Architecture
The architecture of the demonstrator developed in this project is shown in the block diagram below.
Plan
-
The project was kicked off in January 2020.
-
The System Requirement Review (SRR) was held in July 2020.
-
The Preliminary Design Review (PDR) was held in March 2021.
-
The Critical Design Review (CDR) was held in June 2021.
-
The Test Readiness Review (TRR) was held in June 2022.
-
The project was completed, and the Final Review was held in January 2023.
Current Status
The project is completed.
