The delay-/disruption-tolerant networking (DTN) architecture is considered the key enabling technology for future space communications, as confirmed by the current standardization within CCSDS and the experiments carried out onboard the International Space Station. Despite the scientific community efforts to analyze DTN architecture performance, most of the studies have focused on individual protocols, or have considered simple test cases, thus missing a whole system view. To bridge these research gaps, this paper presents a comprehensive analysis of DTN performance in Mars-Earth communications, considering a realistic and complex end-to-end scenario, where multiple assets and multiple data flows are involved, as envisioned for future space missions. To this end, a virtualized testbed based on ION software was used for an extensive emulation campaign, focusing particularly on Bundle and Licklider Protocol interaction with the CGR routing algorithm.

中文翻译：

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多资产火星-地球通信的DTN性能分析

延迟/中断容错网络 (DTN) 架构被认为是未来空间通信的关键支持技术，CCSDS 当前的标准化和在国际空间站上进行的实验都证实了这一点。尽管科学界努力分析 DTN 架构性能，但大多数研究都集中在单个协议上，或者考虑了简单的测试用例，因此缺少整体系统视图。为了弥合这些研究空白，本文对火星-地球通信中的 DTN 性能进行了全面分析，并考虑了未来太空任务所设想的涉及多个资产和多个数据流的现实且复杂的端到端场景。为此，