摘要
针对延迟容忍的空间信息网络与其他异构网络的互联,目前还没有有效的对策.设计基于DTN的互联方法,在具有异构协议代理功能的DTN转发节点实现中,扩展Bundle层功能和运作规范,在空间通信链路环境中实现了CCSDS协议体系、TCP/IP协议体系、DTN协议体系的功能一体化.设计半物理仿真环境模拟空间通信场景,在其中对比了采用传统IP互联方法和该DTN互联方法进行不同业务传输的性能,并体现了DTN互联方法在数据保管能力上的优越性.
Currently there is no effective measure for interconnecting delay-tolerant space networks and other heterogeneous networks. This paper designs a DTN gateway with protocol-proxy function, expands the functions and operation procedures in Bundle layer and combines the CCSDC protocol suite, TCP/IP protocol suite and DTN protocol suite in space communication environment. This paper also develops semi- physical simulation testbed for space network and makes performance comparison on traditional IP gateway and our DTN gateway. The results show that the DTN gateway excels at preserving data.
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2015年第5期734-738,共5页
Engineering Journal of Wuhan University
基金
国家自然科学基金项目(编号:61371126)
中央高校自主科研项目(编号:2042014gf020)
