Load Statistics Priority Random Access Technology Based on Air-Space-Ground Integrated Network  

作　　者：Enze Li Hao Huan Jingyu Wang Kunshan Yang 

机构地区：[1]School of Information and Electronics,Beijing Institute of Technology,Beijing 100081,China [2]Space Star Technology Corporation,Beijing 100095,China

出　　处：《Journal of Beijing Institute of Technology》2024年第6期493-506,共14页北京理工大学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (No. 62027801)。

摘　　要：In today's world where everything is interconnected, air-space-ground integrated networks have become a current research hotspot due to their characteristics of high, long and wide area coverage. Given the constantly changing and dynamic characteristics of air and space networks, along with the sheer number and complexity of access nodes involved, the process of rapid networking presents substantial challenges. In order to achieve rapid and dynamic networking of air-space-ground integrated networks, this paper focuses on the study of methods for large-scale nodes to randomly access satellites. This paper utilizes a cross-layer design methodology to enhance the access success probability by jointly optimizing the physical layer and medium access control(MAC) layer aspects. Load statistics priority random access(LSPRA) technology is proposed.Experiments show that when the number of nodes is greater than 1 000, this method can also ensure stable access performance, providing ideas for the design of air-space-ground integrated network access systems.

关 键 词：air-space-ground integrated network random access satellite-to-ground statistics priority access success probability 

分 类 号：TN927.2[电子电信—通信与信息系统]