重庆邮电大学学报（自然科学版）2017，Vol.29Issue(2)：190-195,6.DOI:10.3979/j.issn.1673-825X.2017.02.008
GMR-1卫星通信系统中的降低切换时延算法
Low handover delay algorithm on GMR-1 satellite communication system
摘要
Abstract
Compared with the ground mobile communication system,GEO satellite mobile communication system has the features of a large beam coverage,extended signal transmission,and limited satellite resources.Therefore,the existing satellite handover algorithm cannot meet the real-time requirements of GEO satellite mobile communication system.For this reason,we propose an algorithm to reduce the handover delay of satellite communication system.The position information of the satellite communication terminal and the historical measurement information are used to get the handover location area.Then according to whether planning navigation path through the handover position area to make handover prejudgment.Finally we make a more accurate handover decision that is combined with the terminal mobile vector and the moving speed of the possible cross handover location area.Compared with the existing ground mobile communication system handover algorithm,this algorithm not only makes use of the traditional parameters such as the power measurement of the terminal and the quality of the received signal,but also gives an overall consideration to the location of the terminal and the mobile vector information.Simulation results show that the proposed handover algorithm not only can reduce the delay of the satellite spot beam handover,but also can lower the ping-pong effect.关键词
GMR-1/卫星通信/切换算法/波束切换/GPSKey words
GMR-1/satellite mobile communication/handover algorithm/beam switching/GPS分类
信息技术与安全科学引用本文复制引用
吴广富,姜玉洁,唐璇,付仕明..GMR-1卫星通信系统中的降低切换时延算法[J].重庆邮电大学学报（自然科学版）,2017,29(2):190-195,6.基金项目
国家科技重大专项课题(2013ZX03006005) （2013ZX03006005）
国家高技术研究发展计划("863"计划)(2015AA01A709) （"863"计划）
长江学者和创新团队发展计划(IRT1299) （IRT1299）
科技新星培育工程 （）
重庆第二师范学院校级项目(KY201524B) （KY201524B）
The Major Special Project of National Science and Technology(2013ZX03006005) （2013ZX03006005）
The National High Technology Research and Development Program("863" Program) of China(2015AA01A709) （"863" Program）
The Program for Changjiang Scholars and Innovative Research Team in University(IRT1299) （IRT1299）
The Science and Technology Nova Breeding Project （）
The Chongqing University of Education Academic Research Project(KY201524B) （KY201524B）
