天地一体化网关设计与实现  

Design and Implementation of Gateway in Integrated Space-air-ground Network

作　　者：徐琪[1] 周华春[1] 李光磊[1] 高德云[1] 李泰新 李海峰[1] 

机构地区：[1]北京交通大学电子信息工程学院,北京100044

出　　处：《铁道学报》2016年第10期69-77,共9页Journal of the China Railway Society

基　　金：国家高技术研究发展计划(863计划)(2015AA015702);国家自然科学基金(61271202)

摘　　要：采用身份与位置分离、资源与控制分离、控制与转发分离的思想和空间DTN体系结构,提出一体化标识网络构建天地一体化网络,并设计实现天地一体化网关,通过标识和协议转换实现地面网络和空间网络的互联互通。基于一体化标识网络实验平台设计地月通信实验场景,在不同的非对称上下行速率比、误码率情况下进行多次地月数据传输实验,测试所设计的扩展模块WebCache的基本功能。实验结果表明网关能够在一定程度上适应空间链路特性,而WebCache模块能够帮助提高空间链路的利用率。The proposed identifier-based universal networks aims to decouple the binding of identifier and locator, resource and locator, control and forwarding, and takes advantages of DTN architecture to design an integrated space-air-ground network. In this paper, a gateway was designed and implemented to interconnect terrestrial network and space network, which translated protocol and identifier for packets. Based on the experimental platform of the identifier-based universal networks, the earth-to-moon communication experiment scenario was designed. Multiple earth-to-moon data transmission experiments were carried out with different asymmetric uplink and downlink ratio and bit error rate to test the basic function of the designed extended mod-ule WebCache. The result indicated that the gateway can overcome the constraint of space link and the Web- Cache module can help improve the utilization ratio of space link .

关 键 词：一体化标识网络 DTN网络 天地一体化网关 

分 类 号：TN915[电子电信—通信与信息系统] TN927[电子电信—信息与通信工程]