关于低轨卫星物联网多址接入应用研究

Research on the application of low-orbit satellite IoT multiple access

人类目前已有的地面物联网技术覆盖范围相对有限,所以低轨卫星物联网就应运而生,它是作为传统中地面物联网的延伸与补充而存在的,它的覆盖范围更广,同时可在单一波束下承载多用户数,较完美地解决了地面物联网覆盖能力不足这一现实问题。文章主要研究了有关低轨卫星物联网的多址接入协议性能,并对不同的多址接入协议类型及应用进行了针对性解读。

The existing ground-based IoT technology coverage of human beings is relatively limited,so the low-orbit satellite IoT came into being.It exists as an extension and supplement of the traditional ground-based IoT,and its coverage is wider.At the same time,it can carry multiple users under a single beam,which perfectly solves the practical problem that the ground object Internet coverage capability is insufficient.This paper mainly studies the performance of multiple access protocol for low-orbit satellite IoT,and makes a targeted interpretation of different types and applications of multiple access protocols.