Adjusting transport segmentation policy of DTN Bundle Protocol under synergy with lower layers
Adjusting transport segmentation policy of DTN Bundle Protocol under synergy with lower layers
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DOI：
10.1016/j.jss.2010.09.023
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发表时间：
2011-02
期刊：
影响因子：
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通讯作者：
C. Samaras;V. Tsaoussidis
中科院分区：
文献类型：
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作者：
C. Samaras;V. Tsaoussidis
我们在调整各层协议数据单元（PDU）大小的范围内评估了容延迟网络（DTN）在空间中的性能。我们量化了组合调整DTN束、传输数据包和链接帧大小的重要性。通过模拟，我们的论文揭示了涉及文件传递时间、发送节点的传输努力和内存资源释放率的权衡。在此基础上，提出了一种基于启发式搜索动态调整DTN包和传输包大小的传输自适应方案。据我们所知，这是第一个研究传输分段策略和DTN协议栈各层之间交互的研究。
We assess Delay-Tolerant Network (DTN) performance in space under the scope of adjusting protocol data unit (PDU) size at various layers. We quantify the importance of combinatively adjusting size of DTN bundles, transport packets, and link frames. Through simulations, our paper reveals trade-offs that involve file delivery time, transmission effort of sending nodes, and memory resources release rate. Based on our findings, we propose a transport adaptation scheme that dynamically adjusts DTN bundle and transport packet size by means of heuristic search. To our knowledge, this is the first study to examine transport segmentation policy and interaction among various layers of the DTN protocol stack.