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.

干扰是无线通信系统实现高数据速率的主要障碍。 故意干扰或“干扰”主要在军事通信网络中进行研究。 大多数先前的工作都使用干扰机的非描述性模型，除了其广播噪声的能力之外，没有赋予它们任何策略或特殊功能。 该研究项目的重点是干扰策略本身的设计，而不是其缓解措施（尽管后者问题本身也得到了解决）。 考虑的问题包括：干扰器可以利用哪些信息？ 干扰器如何处理这些信息不精确的情况？ 分布式干扰器如何协调干扰以最大化其效果？ 应如何设计干扰来掩盖必须保证安全、不被窃听的通信？该项目的重点是在物理层利用多个天线的干扰技术。 具体的研究重点包括： - 无线网络中的协作干扰：正在制定合作策略，以最佳方式将资源分配给所需的链路和友好的干扰器。 - 恶意反馈：“干扰”不是噪声而是恶意物理层反馈的场景。对这些进行研究是为了确定潜在损害的程度和可能的补救措施。--对不准确的信道估计的稳健性：最大化干扰的影响关键取决于可用信道信息的质量。 这项研究正在调查这些信息中的不准确性以及对此类信息不准确的技术的影响。--实验研究：研究人员在实验室中使用 MIMO 无线电，在实际网络中实施协作干扰方法，并研究理论与实际之间的差距。实际表现。