王晓杰+罗健欣+郑成辉+倪桂强



DOI:10.16644/j.cnki.cn33-1094/tp.2016.02.004
摘 要: 卫星通信不但通信容量大,通信距离远,而且组网灵活,线路质量安全可靠,具有许多其他通信手段无法比拟的优点。卫星资源分配主要研究在卫星资源有限的情况下,针对不同等级的通信保障任务,采用多种资源分配策略,优化卫星资源的分配,确保高优先级的任务能够得到更好的资源。并通过资源分配展示控件,可视化的展示资源分配结果。实验结果表明,基于任务等级的卫星资源分配算法能够很好的满足不同等级的通信保障任务需求。
关键词: 分配策略; 分配算法; 卫星资源; 任务等级
中图分类号:TN915 文献标志码:A 文章编号:1006-8228(2016)02-11-03
Satellite resource allocation algorithm base on task priority
Wang Xiaojie, Luo Jianxin, Zheng Chenghui, Ni Guiqiang
(The PLA university of science and technology institute of command information system, Nanjing, Jiangsu 210000, China)
Abstract: Satellite communication has not only the advantages of large capacity and long distance of communication, but also networking flexible, line quality safe and reliable, and has the incomparable virtues than the many other methods of communication. Satellite resource allocation is mainly studied in the case of limited satellite resources, for the communication guarantee tasks with different priorities, using multiple resource allocation strategies, optimizing the allocation of satellite resource, to ensure that higher priority tasks can get better resources. And through resource allocation display widget, visually display the results of resource allocation. The experiment results show that the satellite resource allocation algorithm base on task priority can meet the needs of communication guarantee tasks with different priorities.
Key words: allocation strategy; allocation algorithm; satellite resource; task priority
0 引言
卫星网络以其重要的战略地位逐渐成为当今世界各航天大国研究的热点。卫星网络从传统作为陆地网的重要补充,用来实现各种网络的互联,为家庭和商业提供互联网的接入服务,正逐步转化为空间信息高速公路的主干网[2]。随着卫星资源日益丰富,各种通信保障任务,尤其是大地域、近海、海外和远洋防御、训练、演习、作战任务对卫星通信的依赖程度越来越大,研究如何管理和分配有限卫星资源,以满足不同等级任务的通信保障需求,是一件迫在眉睫的工作,也是发挥卫星通信最大效能的关键。
1 卫星资源的逻辑层次关系
对于卫星资源,最终的落实点是波束或转发器,如果落实点是波束则应该是整个波束被分配给某个任务;如果落实点是转发器则可能只是转发器中的某段频率或某几个信道/信道中的时隙[3]。……