Collaborative Research: NeTS-NBD: Construction of Robust and Efficient Disruption Tolerant Networks

合作研究：NeTS-NBD：构建鲁棒高效的抗干扰网络

• 批准号: 0519881
• 负责人: Brian Levine
• 金额: $ 75万
• 依托单位: University of Massachusetts Amherst
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-08-15 至 2011-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0519881&HistoricalAwards=false
• 关键词: Collaborative; Research; NeTS; NBD; Construction

Traditional networks, both wired and wireless, have the property that end-to-end paths between nodes are relatively stable. However, not all environments that require communication will allow the creation of stable end-to-end paths. For example, the aftermath of a severe earthquake disaster will include collapsed buildings, persons trapped in debris, damaged utilities and roads, as well as fires and secondary explosions. Under this situation, the ability to communicate, even at low rates, is extremely valuable for sharing vital information, such as the number and location of survivors and the activities of rescue workers. To provide communication in these challenged environments, the network protocols must be explicitly designed to perform despite frequent disruptions in the availability and performance of network components (i.e., links and nodes). The resulting systems are termed Disruption Tolerant Networks (DTNs).This work focuses on the construction of DTNs that go far beyond the task of finding unicast paths. Instead, these DTNs are robust under uncertainty and attack, and are highly efficient in their use of the node and link resources. Specifically, this project focuses on the following fundamental functions: group communication, single-hop transfers, and power management. The work is grounded by experimentation in testbeds at the collaborating universities. The project provides algorithms, protocols, and platforms to create robust and efficient DTNs enabling communication in the most critical of environments, as well as exposes cost-performance tradeoffs that might have broader applicability in less challenged networks.

传统网络，无论是有线还是无线，都具有节点之间端到端路径相对稳定的特性。然而，并非所有需要通信的环境都允许创建稳定的端到端路径。 例如，严重地震灾难的后果将包括建筑物倒塌、人员被困在废墟中、公用设施和道路受损，以及火灾和二次爆炸。在这种情况下，即使速率较低，通信能力对于共享重要信息（例如幸存者的数量和位置以及救援人员的活动）也非常有价值。 为了在这些充满挑战的环境中提供通信，必须明确设计网络协议，使其能够在网络组件（即链路和节点）的可用性和性能频繁中断的情况下正常运行。由此产生的系统称为中断容忍网络 (DTN)。这项工作的重点是构建远远超出查找单播路径任务的 DTN。相反，这些 DTN 在不确定性和攻击下具有鲁棒性，并且在使用节点和链路资源方面非常高效。具体来说，该项目重点关注以下基本功能：群组通信、单跳传输和电源管理。这项工作以合作大学的试验台实验为基础。 该项目提供算法、协议和平台来创建强大而高效的 DTN，从而能够在最关键的环境中进行通信，并揭示成本性能权衡，这些权衡可能在挑战较小的网络中具有更广泛的适用性。