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.

干扰是在无线通信系统中实现高数据速率的关键障碍。故意干扰或“干扰”主要是在军事通信网络中研究的。大多数以前的工作都使用了干扰机的非描述性模型，没有将任何策略或特殊能力归因于干扰机广播噪声的能力之外。该研究项目侧重于干扰策略本身的设计，而不是它们的缓解(尽管后者本身也被解决)。考虑的问题包括：干扰器可以利用哪些信息？干扰机如何处理这些信息不准确的情况？分布式干扰机如何协调它们的干扰以使其效果最大化？应该如何设计干扰来掩盖必须确保不被窃听的通信？该项目的重点是利用物理层多个天线的干扰技术。具体的研究工作包括：--无线网络中的合作干扰：正在开发合作策略，将资源最佳地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情况。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：最大限度地提高干扰的影响关键取决于可用的信道信息的质量。这项研究正在调查这些信息中的不准确对这些信息的影响以及对这些信息具有健壮性的技术的影响。--实验研究：研究人员在他们的实验室中使用MIMO无线电，在一个真实的网络中实施合作干扰方法，并研究理论和实际性能之间的差距。