NeTS: Small: xBeam: Cross-Layer Beamforming Against Denial of Service Attacks in Wireless Networks

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。人们普遍认为，在无线网络中实现所需的安全级别比在有线网络中实现更大的挑战。拒绝服务（DoS）攻击是有线网络中的一个突出威胁，在无线网络中是一个更为严重的威胁。该项目旨在探索一种具有跨层交互的新型波束形成框架（称为xBeam）的实现方法，以防御无线网络中的DoS攻击。本项目检查各种DoS攻击，开发xBeam算法，评估xBeam在阻止DoS攻击方面的有效性，并使用无线测试平台验证算法。智力优势：该项目开发了一种针对无线网络中DoS攻击的新防御方法，该方法基于具有跨层交互的自适应波束形成。该方法可以阻止跨不同网络层的DoS攻击、来自不同空间方向的多个DoS攻击以及移动恶意攻击者的攻击。更广泛的影响：本研究有助于无线网络安全的实质性改进，并有助于网络化移动无线信息社会的发展。该项目支持以研究为导向的教育，通过课程和实践实验为无线网络安全的高级研究提供机会。这项研究还为本科生在夏季提供了高质量的研究经验，特别是来自代表性不足群体的学生。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5.)It is commonly understood that to achieve a desired level of security in wireless networks is a bigger challenge than in wired networks. The denial of service (DoS) attack is a prominent threat in wired networks, and is a more potent threat in the wireless domain. This project aims to explore enabling approaches for a novel beamforming framework with cross-layer interactions, referred to as xBeam, as a defense against DoS attacks in wireless networks. This project examines various DoS attacks, develops xBeam algorithms, evaluates the effectiveness of xBeam in deterring DoS attacks, and validates the algorithms using a wireless test bed.Intellectual merit: This project develops a novel defense approach against DoS attacks in wireless networks, which is based on adaptive beamforming with cross-layer interactions. The approach can deter DoS attacks across different networking layers, multiple DoS attacks mounting from different spatial directions, and attacks mounted by malicious attackers who are mobile.Broader impact: This research contributes to a substantial improvement in wireless network security and contributes to the advance of a networked mobile wireless information society. The project supports research oriented education, by providing opportunities for advanced study of wireless network security through coursework and hands-on experimentation. This research also provides quality research experiences for undergraduate students in the summer, particularly students from underrepresented groups.