NetSE: Large: Urban-Scale Polymorphic Wireless Networks: Community-Driven Assessment, Design, and Access

NetSE：大型：城市规模多态无线网络：社区驱动的评估、设计和访问

• 批准号: 1012831
• 负责人: Edward Knightly
• 金额: $ 180万
• 依托单位: William Marsh Rice University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-01 至 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1012831&HistoricalAwards=false
• 关键词: NetSE; Large; Urban; Scale; Polymorphic

Intellectual Merit. This project will develop the world?s first urban polymorphic wireless access network, a network that can radically transform its basic properties on-the-fly. A key step is deployment of infrastructure and client nodes that can access diverse spectral ranges spanning from MHz to GHz. This unique capability in spectrum access enables revisiting the foundations of network assessment, design, and access. This experimental approach capitalizes on an unprecedented opportunity in an urban community within Houston: In Pecan Park, an underserved community, the project team will serve as researchers, the wireless network service provider, the network equipment and protocol designers, and community-technology educators and advocates. In a coordinated effort using this urban testbed, the project addresses the following three inter-related research thrusts:CACTUS: cross sectional assessment of community and technology usage: development of a first-of-its-kind network assessment tool that integrates three new methods with existing network trace collection capabilities: (i) sociological assessment of community-technology wireless access objectives from perspectives of both usage and contribution to a collective good; (ii) in-situ user experience assessment via end-user reporting; and (iii) concurrent in-situ client performance tests instantiated remotely by the network operator.PAWN: polymorphic architecture for wireless networks: employing an urban deployment of nodes that can access spectrum spanning an order of magnitude from 5 GHz to 500 MHz in the Digital TV white spaces range, the project will (i) develop foundations and tools for dynamic network architecture based on assessment of community objectives and usage; (ii) develop foundations and tools for ?green wireless,? energy-efficient architectures which power down low-usage nodes but retain coverage through spectrum adaptation; and (iii) develop foundations and tools for spectrum-driven mobility management, in which highly mobile clients exploit nodes with large spatial footprints (enabled by low spectral ranges) to obtain a performance-velocity profile that was previously impossible.CODA: context-driven network access: exploiting CACTUS and context awareness, the project will (i) develop context-driven quality estimation of current and future association choices to a polymorphic wireless network and devise client-directed policies for a client to optimize efficiency, performance, and mobility of association; and (ii) design and realize a polymorphic aggregate network interface that dynamically aggregates packets from multiple network interfaces of multiple spectral bands. Using this mechanism and context-awareness, we will study interface selection and traffic allocation for a client to obtain its required performance with unprecedented efficiency.Broader Impact. With a strong interdisciplinary nature, this project will develop new research methods and yield foundational findings for areas spanning wireless networking to social sciences. The deployment in a low-income community provides access to information technologies for its residents. It will produce lessons and insights for future deployments of wireless infrastructures in other urban communities, including underserved ones, both nationally and internationally. The unique use of DTV white spaces can guide future FCC policy decisions. The project will provide research opportunities for undergraduate and graduate students from a variety of disciplines. It will also produce educational content that can significantly enrich our curricula in multiple disciplines. The project will continue to produce publicly available data sets that have already been utilized by researchers world-wide. The data sets are unique in that they provide unprecedented access to all system components from the end-user to the network.

智力优势。这个项目将发展世界？的第一个城市多态无线接入网络，一个网络，可以从根本上改变其基本属性的飞行。一个关键步骤是部署基础设施和客户端节点，这些节点可以访问从MHz到GHz的各种频谱范围。这种独特的频谱接入能力使我们能够重新审视网络评估、设计和接入的基础。这种实验方法利用了休斯顿城市社区前所未有的机会：在服务不足的Pecan Park社区，项目团队将担任研究人员，无线网络服务提供商，网络设备和协议设计师以及社区技术教育者和倡导者。在使用这个城市试验平台的协调努力中，该项目解决了以下三个相互关联的研究重点：CACTUS：社区和技术使用的横截面评估：开发首个网络评估工具，将三种新方法与现有的网络跟踪收集能力相结合：（i）从使用和对集体利益的贡献的角度对社区技术无线接入目标进行社会学评估;（ii）经由终端用户报告的现场用户体验评估;以及（iii）由网络运营商远程实例化的并发现场客户端性能测试。采用可以接入数字TV白色空间范围中的从5GHz到500 MHz的数量级的频谱的节点的城市部署，该项目将（i）根据对社区目标和使用情况的评估，为动态网络架构开发基础和工具;绿色无线，？节能架构，使低使用率节点断电，但通过频谱自适应保持覆盖;以及（iii）开发频谱驱动的移动性管理的基础和工具，其中高度移动的客户端利用具有大空间足迹的节点（通过低光谱范围实现），以获得以前不可能实现的性能-速度曲线。CODA：上下文驱动的网络访问：利用CACTUS和上下文感知，该项目将（i）开发对多态无线网络的当前和未来关联选择的上下文驱动的质量估计，并为客户端设计客户端导向的策略，以优化关联的效率、性能和移动性;以及（ii）设计和实现动态地聚合来自多个频谱带的多个网络接口的分组的多态聚合网络接口。使用这种机制和上下文感知，我们将研究客户端的接口选择和流量分配，以前所未有的效率获得其所需的性能。该项目具有很强的跨学科性质，将开发新的研究方法，并为无线网络到社会科学等领域提供基础性研究成果。在低收入社区的部署为其居民提供了获得信息技术的机会。它将为未来在其他城市社区部署无线基础设施提供经验教训和见解，包括国内和国际上服务不足的社区。DTV白色空间的独特使用可以指导未来的FCC政策决策。该项目将为来自不同学科的本科生和研究生提供研究机会。它还将产生教育内容，可以大大丰富我们在多个学科的课程。该项目将继续提供已被世界各地研究人员利用的公开数据集。这些数据集的独特之处在于，它们为从最终用户到网络的所有系统组件提供了前所未有的访问权限。