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行星表面有人探索高速无线网络体系架构及关键技术
孙杰,李冰,李望,李婷,马松,刘田
0
(中国西南电子技术研究所,成都 610036;中国航天员科研训练中心,北京100094)
摘要:
针对行星表面有人探索任务对高速无线通信的需求,提出了一种基于异构组网思想的网络体系架构,并对关键技术进行了分析和设计。该架构采用“三网两体制”的设计思路,将整个网络分为高速传输网、多媒体接入网、覆盖扩展网三个组成部分,三层网络分别完成高速骨干传输、多节点多业务接入、覆盖范围灵活改变的功能。根据三个网络不同的节点处理能力和传输需要,设计了高速传输体制、灵活接入体制两种传输体制,及基于无线多跳的覆盖扩展技术、多子网通信切换技术、多体制融合技术等关键技术。该网络架构具有裁剪灵活、协议开销小、支持业务类型多等特点。
关键词:  行星表面有人探索  体系架构  无线组网  异构组网
DOI:
基金项目:
High speed wireless networking architecture and key technologies for planetary surface manned exploration
SUN Jie,LI Bing,LI Wang,LI Ting,MA Song,LIU Tian
(Southwest China Institute of Electronic Technology,Chengdu 610036,China;China Astronaut Research and Training Center,Beijing 100094,China)
Abstract:
According to the requirements of high speed communication in planetary surface manned exploration mission,a networking architecture based on heterogeneous networking concept is proposed,key technologies are also analyzed and designed.The method adopts the design concept of "three networks and two communication systems" which divides the entire network into three parts:high-speed transmission network,multimedia access network and coverage extension network.The three networks are separately responsible for high speed backbone transmission,multi-node multi-service access and the flexible changing of coverage.According to the different processing capabilities and transmission requirements of nodes in these three networks,key technologies such as two transmission systems(high speed transmission systems and flexible access system),coverage extension based on wireless multi-hop technology,multi-subnet communication switching technology and multi-system fusion technology are designed.This networking architecture has the advantages of flexible tailoring,small protocol overhead and many types of service supported.
Key words:  planetary surface manned exploration  system architecture  wireless networking  heterogeneous networking
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