Spectrum Management in Cognitive Radio Ad Hoc Networks

认知无线电自组织网络中的频谱管理

• 批准号: 0900930
• 负责人: Ian Akyildiz
• 金额: $ 35万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-08-01 至 2012-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0900930&HistoricalAwards=false
• 关键词: Spectrum; Management; Cognitive; Radio; Ad

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).The objective of this research is to develop a spectrum management framework for cognitive radio ad hoc networks. The project investigates the challenges posed by the distributed multi-hop architecture, the dynamic network topology, and the frequently changing spectrum seen in these networks. Up to now, the research in this area has mainly focused on infrastructure-based networks. This research aims to highlight the major challenges in the distributed operation and provide protocol-level solutions for each of them.With respect to intellectual merit, this research has the potential to lead to a cooperation strategy that improves the sensing accuracy at an acceptable communication cost. To enable this interaction between nodes, an on-demand reliable common control channel is devised. For determining the best spectrum for transmission, a joint spectrum and route selection method is developed. Moreover, a cognitive radio medium access control protocol is proposed, with goals of providing interference avoidance as well as efficient spectrum utilization. Finally, a spectrum-aware route recovery framework is proposed for efficient operation when the cognitive radio nodes switch between frequency bands.With respect to broader impact, research results will lead to selected topics for a Cognitive Radio Networks taught by the principal investigator at Georgia Tech. Moreover, a cognitive radio simulator is implemented as part of this project and will be used in the class as an educational tool. Collaboration with industry and academic institutions is pursued to disseminate the current state-of-the-art.

本研究的目的是为认知无线电ad hoc网络开发一个频谱管理框架。 该项目研究了分布式多跳架构、动态网络拓扑以及这些网络中频繁变化的频谱所带来的挑战。 到目前为止，这方面的研究主要集中在基于基础设施的网络。 本研究的目的是突出在分布式操作的主要挑战，并提供协议级的解决方案，为每个theme.With尊重的智力价值，这项研究有可能导致一个合作策略，提高了传感精度在一个可接受的通信成本。 为了实现节点之间的这种交互，设计了按需可靠的公共控制信道。 为了确定最佳的频谱传输，联合频谱和路由选择方法的发展。 此外，提出了一种认知无线电介质访问控制协议，其目标是提供干扰避免以及有效的频谱利用率。 最后，频谱感知的路由恢复框架提出了有效的操作时，认知无线电节点之间切换频带。关于更广泛的影响，研究结果将导致选定的主题，由首席研究员教授的认知无线电网络在格鲁吉亚技术。 此外，认知无线电模拟器作为该项目的一部分，并将在课堂上作为教育工具。 与工业界和学术机构合作，传播当前的最新技术。