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.

该奖项是根据2009年的《美国复苏与再投资法》（公法111-5）资助的。该研究的目的是为认知无线电临时网络开发频谱管理框架。 该项目调查了分布式多跳体架构，动态网络拓扑以及这些网络中经常变化的频谱所带来的挑战。 到目前为止，该领域的研究主要集中在基于基础架构的网络上。 这项研究旨在强调分布式操作中的主要挑战，并为每个分布式解决方案提供协议级别的解决方案。就知识分子而言，这项研究有可能导致合作策略，以提高可接受的通信成本下的感知准确性。 为了启用节点之间的这种相互作用，设计了按需可靠的公共控制通道。 为了确定传输的最佳频谱，开发了关节频谱和路线选择方法。 此外，还提出了认知无线电媒体访问控制协议，其目标是提供干扰以及有效的光谱利用率。 最后，当认知无线电节点在频段之间切换时，提出了一个频谱感知路线恢复框架，以进行有效的操作。对于更广泛的影响，研究结果将导致佐治亚理工学院首席研究人员教授的认知无线网络的选定主题。 此外，将实施认知无线电模拟器作为该项目的一部分，并将在班级中用作教育工具。 寻求与行业和学术机构的合作，以传播当前的最新技术。