高低轨通信卫星联合组网和协议设计  

Protocol Design of GEO-LEO Combined Communication Satellite Network

作　　者：冯建元 庞立新 李杰 闫文凯 周志成[2] FENG Jianyuan;PANG Lixin;LI Jie;YAN Wenkai;ZHOU Zhicheng(APT MobileSatCom Limited,Shenzhen 518126,China;China Academy of Space Technology,Beijing 100094,China)

机构地区：[1]亚太卫星宽带通信(深圳)有限公司,深圳518126 [2]中国空间技术研究院,北京100094

出　　处：《无线电通信技术》2019年第4期351-355,共5页Radio Communications Technology

基　　金：深圳市新兴产业扶持计划(20170420123926680);深圳市院士工作站基金资助项目

摘　　要：组建容量大、广覆盖、高可靠的天基信息网络是未来通信技术的发展方向。高低轨道卫星由于各自的优势与不足,单独组网都无法满足未来天基信息网络的要求,因此高低轨通信卫星联合组网是未来通信卫星网络的发展方向。然而,高低轨卫星联合组网面临星间天线对准难、星间通信干扰大等问题。设计了一种高低轨通信卫星联合组网协议,解决了星间天线对准难的问题,同时有效避免了星间通信干扰。分析和仿真均表明,采用该协议比未采用时在同等情况下大幅提升信道数据成功传输率和信道利用效率。Future communication features high capacity,wide coverage and reliable space information network.Since GEO and LEO satellites both have advantages and disadvantages,neither of them can meet the demand of future space information network.Thus,GEO-LEO combined satellite network is the trend.However,it faces some challenging problems like antenna alignment and interference.This paper introduces a protocol design of GEO-LEO combined satellite network.The protocol not only solves the problem of antenna alignment,but also the problem of interference.Analysis and simulation both indicate that the protocol can increase the success probability of data transmission and channel efficiency.

关 键 词：多轨道 通信卫星 协议设计 天基信息网络 联合网络 

分 类 号：TN91[电子电信—通信与信息系统]