期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
Hybrid Satellite-Aerial-Terrestrial Networks in Emergency Scenarios:A Survey 被引量:14
1
作者 Ying Wang Yichun Xu +1 位作者 Yuan Zhang Ping Zhang 《China Communications》 SCIE CSCD 2017年第7期204-216,共13页
Natural disaster or large-scale unexpected events easily make the terrestrial network overloaded,paralyzed, or totally destroyed. It is highly demanded to build an emergency network which can be deployed rapidly, offe... Natural disaster or large-scale unexpected events easily make the terrestrial network overloaded,paralyzed, or totally destroyed. It is highly demanded to build an emergency network which can be deployed rapidly, offer high data rate and wide coverage. The emergence of aerial platforms especially the low altitude platforms(LAPs) indicates a stable and reliable direction for the development of emergency network. Hybrid satellite-aerial-terrestrial(HSAT) networks have the ability to provide effective services rather than traditional infrastructures during the emergency situation. In this paper, the aerial platforms and the HSAT networks are surveyed and the key technologies are discussed from several aspects. The challenges of the HSAT networks are also outlined finally. 展开更多
关键词 emergency communication aerial platforms hybrid satellite-aerial-terrestrial networks
下载PDF
空天地一体化网络中联合地面基站选择及功率分配 被引量:2
2
作者 李跃 《电讯技术》 北大核心 2020年第2期174-180,共7页
针对由卫星通信网络、地面移动网络以及空中飞行平台所组成的空天地一体化网络(Hybrid Satellite-Aerial-Terrestrial Network,HSAT)下行链路的系统吞吐量问题,提出了基于多目标遗传算法的地面基站选择及功率分配算法。在这一网络中,空... 针对由卫星通信网络、地面移动网络以及空中飞行平台所组成的空天地一体化网络(Hybrid Satellite-Aerial-Terrestrial Network,HSAT)下行链路的系统吞吐量问题,提出了基于多目标遗传算法的地面基站选择及功率分配算法。在这一网络中,空中飞行平台需要地面基站为其进行中继通信。因此,地面中继基站的选择和功率分配决定了系统的吞吐量。所提算法为了取得对系统吞吐量更好的优化效果,将优化系统吞吐量和满足约束条件建模成两个优化目标,通过设计特有的迭代选择过程使地面基站选择和功率分配不断优化。仿真分析表明,所提算法在保证用户最低通信需求的前提下,有效提升了系统的吞吐量。 展开更多
关键词 空天地一体化网络 基站选择 功率分配 遗传算法
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部