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Erschienen in:
2021 | OriginalPaper | Buchkapitel
Performance Analysis of Satellite Internet of Things Access Protocol
verfasst von : Xiaoling Fu, Yanyong Su
Erschienen in: Communications, Signal Processing, and Systems
Verlag: Springer Singapore
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Abstract
Internet of things is an important application scenario in the fifth generation of mobile communications, yet it is difficult to place IoT nodes or base stations in a series of areas where people are sparsely populated or difficult to reach. In order to solve this problem, the concept of satellite IoT came into being. However, how to solve the problem of collision and interference between users when a large number of low-cost terminals access the network at the same time is a major challenge. Therefore, it is necessary to design an applicable access protocol for the satellite IoT service. Aiming at the current satellite IoT scenarios, several common random access protocols which are more suitable in this scenario are introduced, and their performance simulation and comparison analysis are carried out. It is concluded that CRDSA and IRSA are more suitable for scenarios with sink nodes, and the pure ALOHA and SA are more suitable for scenario without sink node.