EAGER: Securing Wireless Network Coding against Pollution Attack at the Physical Layer

目的：该方案的目标是解决无线网络编码系统中攻击者和通信者之间的根本失衡问题，方法是：(1)在物理层检测错误注入的分组；(2)从受污染的分组中仅分离和移除虚假注入的分组，以提取(恢复)真实编码的分组。因此，该方案提供了两个变革性的视角：(1)利用可免费获得的物理信号来检测虚假注入的分组；(2)回收被污染的分组而不是丢弃它，从而显著提高频谱效率。智力优势：本研究的智力价值在于解决当前网络编码技术所面临的安全问题的新视角(信号处理)。该方法的新颖之处在于融合了通信和安全两个方面，这两个方面传统上是分开研究的。研究了安全性、速率和可靠性之间的基本权衡，为在网络编码系统设计中集成通信和安全问题提供了理论基础。更广泛的影响：该项目的更广泛的影响是：(1)通过为当地高中生开发一个实验性示范计划，扩大少数族裔和妇女对工程项目的参与；(2)对新兴的安全嵌入式/传感器/临时网络产生影响，这些网络将适用于广泛的应用，包括监控和安全、健康和环境监测，以及公共安全和应急响应。

Objective: The objective of this program is to address the fundamental imbalance between the attacker and the communicator in wireless network coding system by (1) detecting the falsely injected packet at the physical layer; and (2) separating and removing only the falsely injected packet from the polluted packet to extract (restore) the true coded packet. The program thus provides two transformative perspectives: (1) exploiting the physical signals that are available for free in detecting the falsely injected packet; and (2) recycling the polluted packet instead of discarding it, thereby dramatically improving the spectrum efficiency.Intellectual merit:The intellectual merit of this research lies in the new perspective (signal processing) in addressing the security problem facing current network coding technology. The novelty of the proposed approach is the integration of communication and security aspects, which traditionally have been studied separately. The fundamental tradeoff among the security, rate, and reliability is investigated to develop a theoretical foundation for integrating communication and security issues in network coding systems design. Broader Impacts:The broader impacts of this project are: (1) broadening the participation of minority and women in engineering programs by developing an experimental demonstration program for local high school students; (2) impacting on emerging secure embedded/sensor/ad-hoc networks that will be applicable to a wide range of applications, including surveillance and security, health and environmental monitoring, and public safety and emergency response.