LEO卫星移动通信系统空间网络技术分析  

Study on Space Segment Networking Technology of LEO Satellite Mobile Communication Systems

作　　者：吴渭[1] 骆连合[1] 吴巍[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电通信技术》2008年第4期11-13,共3页Radio Communications Technology

摘　　要：在分析LEO卫星星座移动通信系统空间段网络功能和特点的基础上,进行了星座网络路由和交换技术体制的分析和论证,提出了以支持话音业务为主的LEO卫星移动通信系统星座网络路由和交换技术方案。星座网络采用定长信元格式交换体制,采用动态拓扑离散化的拓扑快照静态路由策略。这种静态路由离线计算方式和定长信元交换相结合,提高了网络交换的效率和转发速率。This paper first analyses the space segment networking function and features of LEO satellite constellation mobile communication system, with routing and switching technologies of constellation network emphasized. A routing and switching scheme for LEO satellites mobile system to support voice service is proposed. In this scheme, the constellation network uses the fixed length cell switch mechanism, and adopts the topology snapshot static routing strategy with dynamic topology discretization. By integrating the static routing offline calculation method with the fixed cell switching technology, the network switching efficiency and forwarding rate are greatly improved.

关 键 词：LEO卫星星座网络 信元交换 路由 

分 类 号：TN927[电子电信—通信与信息系统]