NeTS NEDG: Dynamic Spectrum Access for Availability and Reliability

NeTS NEDG：动态频谱访问以实现可用性和可靠性

• 批准号: 0832090
• 负责人: Haitao Zheng
• 金额: $ 29.27万
• 依托单位: University of California-Santa Barbara
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-09-01 至 2013-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0832090&HistoricalAwards=false
• 关键词: NeTS; NEDG; Dynamic; Spectrum; Access

Historical static spectrum allocation has led to an artificial spectrum scarcity, leaving no usable spectrum for future wireless networks. Dynamic spectrum access is the ideal solution to break such scarcity and make spectrum available to new wireless networks. However, without providing proper reliability guarantees, dynamic spectrum access is unacceptable to many networks and services. Thus, instead of focusing solely on improving spectrum utilization, dynamic spectrum access should provide reliable spectrum usage that meets network's individual needs. This research develops SAFIRE, a robust architecture for dynamic spectrum access that provides reliable and efficient spectrum usage to large wireless networks. This research holds great practical values for wireless network designers and service providers who rely on available and reliable spectrum access to deploy and advance their networks.Recognizing the fundamental tradeoffs between spectrum utilization and reliability, this research focuses on efficient algorithms to meet individual networks? reliability requirements while improving spectrum utilization. The investigators will develop statistical mechanisms to proactively regulate spectrum demands based on their reliability requirements, and apply distributed coordination and cross-layer design to quickly adapt spectrum allocations and application patterns to network and spectrum dynamics. To support large-scale dynamic networks, this research focuses on computational-efficient mechanisms with minimum management overhead. These advancements will help attract large commercial interests into dynamic spectrum systems, facilitating their wide adoption. Finally, the investigators will use this research as a basis to develop interdisciplinary computer science training across both software and hardware layers.

历史上的静态频谱分配导致了人为的频谱稀缺，没有为未来的无线网络留下可用的频谱。动态频谱接入是打破这种稀缺性并使频谱可供新无线网络使用的理想解决方案。 然而，如果不提供适当的可靠性保证，动态频谱接入对于许多网络和服务来说是不可接受的。 因此，动态频谱接入不应仅仅关注提高频谱利用率，而应提供满足网络个性化需求的可靠频谱使用。这项研究开发了 SAFIRE，这是一种用于动态频谱访问的强大架构，可为大型无线网络提供可靠且高效的频谱使用。 这项研究对于依赖可用且可靠的频谱访问来部署和推进其网络的无线网络设计者和服务提供商具有巨大的实用价值。认识到频谱利用率和可靠性之间的基本权衡，本研究重点关注满足单个网络需求的高效算法。可靠性要求，同时提高频谱利用率。研究人员将开发统计机制，根据频谱需求的可靠性要求主动调节频谱需求，并应用分布式协调和跨层设计，以快速适应网络和频谱动态的频谱分配和应用模式。 为了支持大规模动态网络，本研究重点关注具有最小管理开销的计算高效机制。 这些进步将有助于吸引大量商业利益进入动态频谱系统，促进其广泛采用。 最后，研究人员将利用这项研究作为基础，开发跨软件和硬件层的跨学科计算机科学培训。