II-EN: A Metro-Scale Vehicular Wireless Testbed with Spectrum Awareness and Spectrum Agility

该项目建造了一种独特的大都市规模的车载无线试验床，名为MadBed，具有广域无线连接能力，专门设计的节点安装在麦迪逊地区的城市公交车上。试验床还被用来为这些城市公交车的乘客提供互联网服务。此外，试验台还向公交网络提供各种车辆通信服务，例如跟踪城市公交车，以及一些专门的执法能力。该基础设施使威斯康星大学麦迪逊分校的大量专业无线和移动网络研究项目成为可能。一些例子包括探索广域无线网络的新无线网络管理技术，探索新的协作MAC协议，探索广域频谱感知及其利用，以及车辆延迟容忍网络。作为其教育组成部分的一部分，MadBed允许学生在课堂上更多地动手体验广域无线环境的设计和性能。在其外展部分，MadBed的PI与当地政府组织威斯康星州教育传播委员会合作，在全市范围内提供某些教育内容的广播。PI还为当地某些地区的高中生组织年度访问日，通过MadBed的各个方面，让他们接触到计算机职业生涯中一些有趣的方面。最后，MadBed还与许多地方、国家和国际工业合作伙伴建立了巨大的协同效应，例如思科、Sprint、MadCity宽带。

This project builds a unique metro-scale, vehicular wireless testbed, called MadBed, with capabilities for wide-area wireless connectivity, with specially designed nodes mounted on Madison area city buses. The testbed is also being leveraged to provide Internet services to the passengers of these city buses. Further the testbed is also providing various vehicular communication servicesto the bus network, e.g., tracking of city buses, and some specialized law enforcement capabilities. The infrastructure is enabling a large number of specialized wireless and mobile networking research projects in the UW-Madison campus. A few examples include exploration of new wireless network management techniques for wide-area wireless networks, exploration in design of new cooperative MAC protocols, exploration in wide-area spectrum sensing and their utilization, and in vehicular delay tolerant networking.As part of its educational component, MadBed is allowing a greater hands-on experience to students in the classroom on design and performance of wide-area wireless environments. In its outreach component, the PIs of MadBed arepartnering with a local governmental organization called Educational Communications Board of Wisconsin to to provide city-wide broadcasts of certain educational content. The PIs are also organizing annual visit days for certainlocal area high schoolers, and exposing them to some interesting aspects of careers in computing, through various aspects of MadBed. Finally, MadBed has also built great synergies with a number of local, national, and internationalindustrial partners, e.g., Cisco, Sprint, MadCity Broadband.