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1. 北京邮电大学电子工程学院,北京 100876
2. 中国电子科技集团公司第五十四研究所,河北 石家庄 050081
[ "胡欣(1985-),男,湖北襄阳人,博士,北京邮电大学副教授、硕士生导师,主要研究方向为智能信号处理、空间和地面信息集成以及航空航天电子信息综合等。 " ]
[ "宋航宇(1994-),女,河南洛阳人,北京邮电大学硕士生,主要研究方向为卫星移动通信、无线资源管理等。" ]
[ "刘帅军(1988-),男,河北邢台人,北京邮电大学博士生,主要研究方向为卫星移动通信、机器学习和动态资源管理等。" ]
[ "李秀华(1964-),女,天津人,博士,北京邮电大学副教授、硕士生导师,主要研究方向为物联网、纳米材料在电子及通信领域应用的研究等。" ]
[ "王卫东(1967-),男,内蒙古包头人,博士,北京邮电大学教授、博士生导师,主要研究方向为卫星通信、无线资源管理、物联网和信号处理等。" ]
[ "汪春霆(1965-),男,江西南昌人,博士,中国电子科技集团公司第五十四研究所研究员、博士生导师,主要研究方向为卫星通信。" ]
网络出版日期:2018-10,
纸质出版日期:2018-10-25
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胡欣, 宋航宇, 刘帅军, 等. 基于时间演进图的LEO星间切换实时预测及更新方法[J]. 通信学报, 2018,39(10):43-51.
Xin HU, Hangyu SONG, Shuaijun LIU, et al. Real-time prediction and updating method for LEO satellite handover based on time evolving graph[J]. Journal on communications, 2018, 39(10): 43-51.
胡欣, 宋航宇, 刘帅军, 等. 基于时间演进图的LEO星间切换实时预测及更新方法[J]. 通信学报, 2018,39(10):43-51. DOI: 10.11959/j.issn.1000-436x.2018166.
Xin HU, Hangyu SONG, Shuaijun LIU, et al. Real-time prediction and updating method for LEO satellite handover based on time evolving graph[J]. Journal on communications, 2018, 39(10): 43-51. DOI: 10.11959/j.issn.1000-436x.2018166.
为了解决低轨(LEO
low earth orbit)卫星时变拓扑以及用户运动交织带来的切换效率较低的问题,提出一种基于时间演进图(TEG
time evolving graph)的星间实时切换预测框架和最短路径动态更新算法。根据终端运动情况,从时间和空间这2个维度动态更新切换预测结果。所提方法适用于多种切换策略,具有较高的灵活性。仿真结果显示,所提方法可以有效地提高预测的准确性,同时避免不必要的切换。
In order to solve the problem of low handover efficiency raised by the interwined impacts of time-varying topology of LEO satellites and terminal movement
a real-time satellite handover prediction framework based on time evolving graph and a shortest path dynamic updating method was proposed.This framework dynamically updated the handover prediction results from the temporal and spatial dimensions according to the terminal movement.The simulation results show that the framework can effectively improve the accuracy of the forecast and avoid the unnecessary handover.
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XIAO B , CAO J , SHAO Z , et al . An efficient algorithm for dynamic shortest path tree update in network routing [J ] . Journal of Communications & Networks , 2012 , 9 ( 4 ): 499 - 510 .
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