TWC: Medium: Collaborative: Strengthening Wi-Fi Network Wide

Wi-Fi已经成为互联网接入的首选技术。因此，现在几乎所有的智能手机或平板电脑都配备了Wi-Fi卡。同时，作为最大化频谱效率的一种手段，Wi-Fi无线电变得越来越复杂，对无线信道条件也越来越敏感。Wi-Fi网络的普及及其自适应行为使其成为大型基础设施层面上拒绝服务攻击的理想目标。该项目旨在全面研究Wi-Fi网络对智能攻击的弹性，并设计和实施能够抵抗或对抗攻击的强大解决方案。该项目还侧重于利用Wi-Fi无线电的新功能，如多输入多输出（MIMO）天线，以抵御强大的对手。该研究将理论与实验和原型相结合，涵盖了一系列学科，包括协议设计和分析、编码和调制、在线算法、排队理论和紧急行为。该项目的预期好处包括：(1)通过实验和分析，从几个方面深入了解Wi-Fi面临的威胁；(2)一套缓解技术和算法，以加强现有Wi-Fi网络和新兴标准；(3)实现为可部署在无线网卡和接入点上的开源软件；(4)对参与无线电设计和部署的下一代科学家和工程师进行安全培训。

Wi-Fi has emerged as the technology of choice for Internet access. Thus, virtually every smartphone or tablet is now equipped with a Wi-Fi card. Concurrently, and as a means to maximize spectral efficiency, Wi-Fi radios are becoming increasingly complex and sensitive to wireless channel conditions. The prevalence of Wi-Fi networks, along with their adaptive behaviors, makes them an ideal target for denial of service attacks at a large, infrastructure level.This project aims to comprehensively investigate the resiliency of Wi-Fi networks to smart attacks, and to design and implement robust solutions capable of resisting or countering them. The project additionally focuses on harnessing new capabilities of Wi-Fi radios, such as multiple-input and multiple-output (MIMO) antennas, to protect against powerful adversaries. The research blends theory with experimentation and prototyping, and spans a range of disciplines including protocol design and analysis, coding and modulation, on-line algorithms, queuing theory, and emergent behaviors.The anticipated benefits of the project include: (1) a deep understanding of threats facing Wi-Fi along several dimensions, via experiments and analysis; (2) a set of mitigation techniques and algorithms to strengthen existing Wi-Fi networks and emerging standards; (3) implementation into open-source software that can be deployed on wireless network cards and access points; (4) security training of the next-generation of scientists and engineers involved in radio design and deployment.