CIF: Small: Jamming in Wireless Networks: Offensive Strategies and Cooperation

CIF：小：无线网络干扰：进攻策略与合作

• 批准号: 1117983
• 负责人: Arnold Swindlehurst
• 金额: $ 36.89万
• 依托单位: University of California-Irvine
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-10-01 至 2014-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1117983&HistoricalAwards=false
• 关键词: CIF; Small; Jamming; Wireless; Networks

Interference is a key impediment to achieving high data rates in wireless communications systems. Intentional interference or "jamming" has primarily been studied in military communication networks. Most prior work has used non-descriptive models for the jammers, without ascribing any strategies or special capabilities to them beyond their ability to broadcast noise. This research project focuses on the design of the jamming strategies themselves, rather than on their mitigation (although the latter issue is inherently addressed as well). Questions considered include: What information can jammers exploit? How does the jammer deal with situations where this information is imprecise? How can distributed jammers coordinate their interference to maximize its effect? How should the jamming be designed to mask communications that must be kept secure from eavesdroppers?The project is focuses on jamming techniques that exploit multiple antennas at the physical layer. Specific research thrusts include:-- Cooperative jamming in wireless networks: Cooperative policies are being developed that optimally allocate resources to the desired link and friendly jammers.-- Malicious feedback: Scenarios where the "jamming" is not noise but rather malicious physical layer feedback. These are studied to determine the extent of potential damage and possible remedies.-- Robustness to inaccurate channel estimates: Maximizing the impact of jamming depends critically on the quality of the available channel information. This research is investigating the effect of inaccuries in this information and on techniques that are robust to such.-- Experimental studies: Using MIMO radios in their lab, the researchers are implementing cooperative jamming approaches in a real network and studying the gap between theoretical and actual performance.

干扰是实现无线通信系统中高数据速率的关键障碍。 故意干预或“干扰”主要是在军事传播网络中研究的。 大多数先前的工作都使用了无描述性模型对干扰者使用，而没有将任何策略或特殊功能归因于他们广播噪音的能力之外。 该研究项目的重点是干扰策略本身的设计，而不是缓解措施（尽管后一个问题也固有地解决了）。 考虑的问题包括：干扰器可以利用哪些信息？ 干扰器如何处理此信息不精确的情况？ 分布式干扰器如何协调其干扰以最大化其效果？ 如何设计堵塞来掩盖必须从窃听器中确保安全的通信？该项目集中在削减物理层的多个天线的干扰技术上。 具体的研究推力包括： - 无线网络中的合作干扰：正在制定合作策略，最佳地将资源分配给所需的链接和友好的干扰者。-恶意反馈：“堵塞”的场景不是噪音，而是恶意的物理层反馈。对这些进行了研究以确定潜在的损害和可能的补救措施。-对通道估计的鲁棒性：最大化堵塞的影响取决于可用通道信息的质量。 这项研究正在研究不准确的这些信息和对这种强大的技术的影响。-实验研究：在他们的实验室中使用MIMO无线电，研究人员正在实际网络中实施合作的干扰方法，并研究理论和实际绩效之间的差距。