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（有线和无线网络）具有相对稳定的端到端路径的属性。但是，并非所有需要通信的环境都可以创建稳定的端到端路径。 例如，严重的地震灾难的后果将包括倒塌的建筑物，被困在碎片中的人，损坏的公用事业和道路以及大火和次要爆炸。在这种情况下，即使以较低的比率进行交流的能力对于共享重要信息（例如幸存者的数量和位置和救援人员的活动）非常有价值。 为了在这些挑战性的环境中提供通信，尽管网络组件的可用性和性能经常受到干扰（即链接和节点），但必须明确设计网络协议。所得系统称为破坏耐受性网络（DTN）。这项工作着重于构建DTN，远远超出了寻找单播路径的任务。取而代之的是，这些DTN在不确定性和攻击下具有强大的功能，并且在使用节点和链接资源方面非常有效。具体而言，该项目侧重于以下基本功能：小组沟通，单人转移和权力管理。这项工作是通过合作大学的测试床实验来扎根的。 该项目提供了算法，协议和平台，以创建在最批评的环境中实现沟通的强大而有效的DTN，并揭示可能在较小挑战的网络中更广泛适用的成本表现折衷。