Modeling the RTT of bundle protocol over asymmetric deep-space channels
Modeling the RTT of bundle protocol over asymmetric deep-space channels
复制标题
对非对称深空信道上捆绑协议的 RTT 进行建模
DOI:
10.1007/bf03391574
复制
发表时间:
2016-10
期刊:
影响因子:
--
通讯作者:
Dongming BIAN
中科院分区:
文献类型:
--
作者:
Zhengguo BIAN;Gengxin ZHANG;Dongming BIAN
Delay/disruption-tolerant networking communications rely heavily on BP (Bundle Protocol), which uses the well- known approach of store-and-forward with optional custody transfer to deal with stressed communication environments. The use of BP and its performance in deep-space communication has been the subject of debate. The accurate estimate of file delivery latency (i.e., RTT (Round Trip Time)) is essential for efficient transmission control, reliable delivery, and bandwidth usage optimization of a protocol. In this paper, we present a performance analysis of BP running over UDPCL/UDP over deep- space channels, focusing on the RTT estimate, in the presence of highly asymmetric channel rates. Analytical models are built for the RTT estimate of the BP/UDPCL transmissions considering the effect of delay caused by space channel-rate asymmetry, and, channel impairment. The models are validated by file transfer experiments using a PC-based testbed. It is found that a smaller bundle size (if smaller than a calculated threshold) results in a longer delay in custody acknowledgment transmission, and thus, a longer RTT.
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影响因子:
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发表时间:
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期刊:
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