摘要
空间通信中存在的高误码率、长往返时延、非对称信道、间歇性链路中断等问题影响了TCP协议应用于卫星网时的效率;空间数据系统咨询委员会针对空间通信中的问题在标准TCP的基础上提出了空间通信传输协议SCPS-TP.本文研究了SCPS-TP协议技术框架及其采用的选择否定重传、Vegas等关键技术;对比分析了SCPS-TP技术与TCP技术的异同;在OPNET平台上设计并实现了SCPS-TP协议.
The problems in space communications such as high bit error, long trip delay,asymmetric channels and intermittent connectivity made the standard Transport Control Protocol which is designed for wired network is very inefficient when applied to satellite network.The Consultative Committee for Space Data Systems aimed at the problems in space communications brought out the Space Communications Protocol Specification-Transport Protocol based on standard TCP protocol.The paper researched the technology frame and the key technology of SCPS-TP such as Select Negative Retransmission and Vegas,We implemented the SCPS-TP protocol on OPNET Modeler.
出处
《河北建筑工程学院学报》
CAS
2012年第2期65-68,共4页
Journal of Hebei Institute of Architecture and Civil Engineering
