新一代低轨卫星网络和地面无线自组织网络融合技术的探讨

[摘要] 展示并验证了一种由新一代低轨卫星网络和地面无线自组织网络组成的星地一体化网络。此星地一体化网络中的低轨卫星网络可以提供大容量、低时延的网络覆盖，其“低轨”的特点又可减小地面终端的尺寸，增强地面网络的移动性。与经典的中轨和静止卫星网络相比，此种网络可以提供更高通量、更高移动性的通信支持，大大拓宽通信网络的应用范围。对不同的网络层次结构采用相应的软件仿真工具环境，为今后进一步深入研究卫星网络的体系结构和自组互联网技术起到了抛砖引玉的作用。

[关键词] 低轨卫星； 无线自组织网络；一体化通信网络

[Abstract] In this paper, we introduce and validate a satellite-terrestrial integrating network constructed by new generation low earth orbit (LEO) satellite network and terrestrial mobile ad hoc network. The new generation LEO satellite network within this integrated network could provide massive network coverage with high throughput and low latency, while the feature of low orbit could reduce the sizes of terrestrial terminals and furthermore could promote terrestrial network’s mobility. In comparison with classic medium earth orbit (MEO) and geosynchronous (GEO) satellite networks, the introduced integration network could offer communication supports with higher throughput and higher mobility, which greatly broaden the application scenarios of communication networks. Different simulation software and techniques were used for studying different layers of satellite communications and networks, which could hopefully inspire future research on satellite networks and ad hoc networks.

[Keywords] LEO satellite; mobile ad hoc network; integrated communication network