Collaborative Research: A Hybrid Systems Framework for Scalable Analysis and Design of Communication Networks

摘要：本提案为当前NSF项目“协作：用于通信网络可扩展分析和设计的混合系统框架”寻求补充资金，批准号~0322476。这笔额外的资金将允许主要研究人员（pi）将正在进行的项目的范围扩展到新的方向，即异构网络，包括连接到有线骨干基础设施的重要无线接入组件。pi预计，开发的混合系统方法可能会对下一代异构互联网的建模、模拟、评估和开发协议产生重大影响。智力优势：提出的研究将为研究异构数据通信网络的可扩展方法提供科学基础。具体而言，该项目将解决以下问题：1)基于混合系统形式主义的大规模异构通信网络的多分辨率模型的开发。多分辨率是通过改变强制聚合的数量来实现的，并提供了研究大规模无线网络所需的可伸缩性。2)开发基于模型的工具，用于数据通信网络的形式化分析，特别是用于评估和调整网络协议。提案人组成了一个多学科、多大学的研究小组，具有计算机网络和互联网的背景（K. Obraczka， UCSC）；计算机网络和建模与仿真（S. Bohacek， UD）；和控制理论与混合系统（J. Hespanha， UCSB）。他们在过去的合作中有着悠久的历史，包括共同指导研究生。特别值得一提的是，此次追加资助的博士后李俊秀是由pi共同指导的。这份增刊将支持李博士与贝尔实验室的研究人员Marina Thottan和Wonsuck Lee合作并访问他们，他们对合作感兴趣，以便调整混合系统方法以满足贝尔实验室和网络行业的未来需求。更广泛的影响：这项工作将扩展基于混合系统的仿真工具，这些工具是在该工作的主要部分下开发的，包括重要的无线组件的网络。这些工具将有助于下一代网络的部署和分析。这个项目也有一个重要的教育组成部分，主要有两个目标：1)向UCSC， UCSB和UD的学生群体传播网络建模，分析和设计方面的最新技术，特别是这个项目的研究成果。2)吸引一些最聪明的本科生进入这一研究领域，并鼓励他们培养在科学研究和专业工程生涯中取得成功所必需的严谨和分析性思维。所有的研究成果，包括论文、报告和软件将通过万维网免费提供给研究和工业界。课程材料（包括课堂讲稿、作业和项目）也将通过网络免费提供给学术界。

Abstract053412905341340534018This proposal seeks supplemental funding to a current NSF project entitled Collaborative: A Hybrid Systems Framework for Scalable Analysis and Design of Communication Networks, Grant No.~0322476. This additional funding will allow the principal investigators (PIs) to expand the scope of on ongoing project toward new directions namely, heterogeneous networks that include significant wireless access components connected to a wired backbone infrastructure. The PIs anticipate that the hybrid systems methodology developed will likely have significant impact on modeling, simulating, evaluating, and developing protocols for next-generation heterogeneous internetworks.Intellectual merit: The research proposed will produce the scientific foundation for a scalable methodology to study heterogeneous data communication networks. In particular, the project will address the: 1) Development of multi-resolution models for large-scale, heterogeneous communication networks based on a hybrid systems formalism. Multi-resolution is achieved by varying the amount of aggregation enforced and provides the scalability needed to study large-scale, wireless networks. 2) Development of model-based tools for formal analysis of data communication networks, and in particular, for evaluating and tuning network protocols. The proposers form a multi-disciplinary, multi-university research group with backgrounds in Computer Networks and the Internet (K. Obraczka, UCSC); Computer Networks and Modeling and Simulation (S. Bohacek, UD); and Control Theory and Hybrid Systems (J. Hespanha, UCSB). They have a long history of past collaboration, including joint co-advising of graduate students. In particular, Junsoo Lee, the postdoc to be supported under this supplement, was co-advised by the PIs. This supplement will support Dr. Lee working with and visiting Bell Labs researchers Marina Thottan and Wonsuck Lee who are interested in collaboration so as to adapt the hybrid systems methodology to meet the future needs of Bell Labs and the networking industry.Broader impacts: This effort will extend the hybrid systems-based simulation tools that were developed under the main part of this effort to networks that include a significant wireless component. These tools will aid the deployment and analysis of next generation networks. This project also has a significant educational component with two main goals:1) Disseminate to the student population of UCSC, UCSB, and UD the state-of-the-art in network modeling, analysis, and design, in general, and in the research achievements of this project in particular. 2) Attract to this area of research some of the brightest undergraduate students and encourage them to develop the rigorous and analytical thinking required for success in scientific research and also in a professional engineering career. All the results, including papers, reports, and software will be made available freely to the research and industry communities through the World Wide Web. The course materials (including lecturenotes, homeworks, and projects) will also be freely available to the academic community via the Web.