• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>IEEE International Conference on Communications >Channel Delay Impact on CCSDS File Delivery Protocol (CFDP) over Space Communications Links
【24h】

Channel Delay Impact on CCSDS File Delivery Protocol (CFDP) over Space Communications Links

机译：在空间通信链路上对CCSDS文件传递协议（CFDP）的信道延迟影响

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A substantially long round trip time (RTT) in space channel hurts TCP interactions between the sending and receiving ends. The Consultative Committee for Space Data Systems (CCSDS) File Delivery Protocol (CFDP) is a new international standard developed to meet a comprehensive set of deep space file transfer requirements. There is a need in NASA to have controlled, experimental evaluation of CFDP performance in space, especially on its effectiveness in coping with long channel delay. This paper presents an experimental evaluation of channel delay impact on throughput performance of CFDP over LEO-satellite link, GEO-satellite link, and cislunar communication link in comparison with the widely deployed TCP and a space transport protocol, SCPS-TP. The experimental results show that CFDP/TCP in the deferred NAK mode is much more effective than other two stacks in the simulated point-to-point space communication links, especially when operated with a long link delay, a high BER and channel-rate asymmetry. We have found that CFDP/TCP is less sensitive, and FTP/TCP and SCPS-FP/SCPS-TP are highly sensitive, to the increase of link delay.
机译：在空间信道的基本上长往返时间（RTT）伤害的发送和接收端之间的TCP相互作用。该咨询委员会空间数据系统（CCSDS）文件传送协议（CFDP）的开发，以满足一套全面的深空文件传输要求的新的国际标准。有必要在美国航空航天局已经控制，在空间CFDP性能试验研究，尤其是其在长通道延迟应对的有效性。本文介绍了关于CFDP超过LEO卫星链路，GEO卫星链路，并且cislunar通信链路的吞吐量性能的信道延迟的影响与广泛部署TCP和空间传输协议，SCPS-TP比较实验评估。实验结果表明，CFDP / TCP在延迟NAK模式比在模拟点至点空间的通信链路的其它两个堆栈，特别是当与一个长链路延迟操作，高的BER和信道速率不对称有效得多。我们已经发现，CFDP / TCP是不太敏感的，和FTP / TCP和SCPS-FP / SCPS-TP是高度敏感，对链路时延的增加。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号