CAREER: Disruption Tolerant Routing in Wired and Wireless Networks

即使在管理良好的有线网络中，由于各种故障也经常发生中断，而在新兴的无线网络中，由于其他原因(如外部干扰)更是如此。随着互联网越来越多地用于许多实时业务应用，尽管存在这种中断，但对高服务可用性的需求仍在不断增长。该项目的目标是开发具有弹性的路由方案，以减轻中断对任务关键型应用程序和服务的影响。具体地说，本项目的目标是：(I)设计一种基于故障推理的快速重路由方案，在不改变IP网络中流行的基于目的地的转发范例的情况下，提供类似于MPLS快速重路由的故障保护；(Ii)设计可扩展的本地化按需链路状态路由方案，确保在中断情况下的可靠交付，而不需要每个节点的准确状态；(Iii)探索利用拓扑和位置信息来处理中断的方法；(Iv)扩展和应用这些方法来实现负载均衡和弹性组播。该项目将增强互联网的健壮性，并使服务能够改善每个人的生活。由于互联网无处不在，除了促进知识共享和远程教育外，它还具有重大的教育价值。该项目的成果将被吸收到高级研究生水平和本科生入门水平的理论课程以及动手实验室课程中。此外，研究进展还将通过几种出版物和原型向业界和更广泛的社区传播。

Disruptions occur often even in well-managed wired networks due to various failures and more so in emerging wireless networks due to additional causes such as external interference. With the increased use of the Internet for many real-time business applications, there is a growing demand for high service availability despite such disruptions. The goal of this project is to develop resilient routing schemes that mitigate the impact of disruptions on mission-critical applications and services. Specifically, this project aims to: (i) devise a failure inferencing based fast rerouting scheme to provide failure protection similar to MPLS fast-reroute without altering the destination-based forwarding paradigm prevalent in IP networks; (ii) design scalable localized on-demand link state routing schemes that ensure reliable delivery in spite of disruptions without requiring accurate state at each node; (iii) explore ways to utilize both topology and position information for handling disruptions; (iv) extend and apply these methods for load balancing and resilient multicasting. This project will boost the robustness of the Internet and enable services that improve the lives of everyone. It also has significant educational value in addition to facilitating knowledge sharing and distance education as a result of an always-available Internet. The results from this project will be assimilated into advanced graduate level and introductory undergraduate level theory courses as well as hands-on laboratory courses. Furthermore, the research advances will also be disseminated to the industry and the broader community through several publications and prototypes.