SaTC: CORE: Small: URadio: Towards Secure Smart Home IoT Communication Using Hybrid Ultrasonic-RF Radio

近年来，智能家居物联网(IoT)设备和平台呈爆炸式增长，突显了解决智能家居通信安全和隐私问题的必要性。对物联网设备(例如智能扬声器、锁和活动跟踪器)的需求正在发生，而作为无线服务的必要组成部分的无线电频谱却变得越来越稀缺。因此，多种无线技术共存并争夺频谱资源，导致频谱效率和安全性下降。该项目旨在通过利用超声波通信的安全性和能效特性，并将其与射频技术相结合，来增强智能家居网络的可靠性和安全性。该项目的成功将产生一种新的通信系统，可以在两种不同类型的频谱-射频和超声波-上提供安全可靠的通信，以帮助缓解无线电频谱的拥挤并防止聚集的安全攻击。拟议项目旨在显著提高智能家居网络的安全性，并将通过创建新的无线安全课程项目和模块对教育产生积极影响；为代表性不足群体的本科生和研究生提供研究培训机会；以及通过备受瞩目的教程、讲座、出版物、软件工具包和开放源码网站广泛传播项目成果。该项目的目标是开发新颖、实用和基础性的解决方案，以确保智能家居物联网网络的安全。1)开发和评估使用宽带超声换能器的混合超声/射频收发机的性能，通过利用相控声阵技术实现安全可靠的物联网通信；2)通过开发多输入多输出(MIMO)干扰消除和定向超声抗干扰通信技术，确保物联网通信的健壮性；以及3)利用环境射频和超声信号的信号特征，设计一种无需凭据的位置受限设备认证机制，旨在对物联网设备进行即时和可信的认证。建议的解决方案将使用大规模模拟进行测试，并通过软件定义的无线电试验台和超声波无线电原型进行实验测试。该项目追求在我们对智能家居物联网网络安全的理解方面取得进展，从而为下一代智能家居系统的设计提供指导。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

Recent years have seen the explosion of smart home Internet-of-Things (IoT) devices and platforms, underscoring the need to address security and privacy of smart home communications. The demand for IoT devices (e.g., smart speakers, locks, and activity trackers) is occurring while radio spectrum, a necessary ingredient for wireless service, becomes increasingly scarce. As a result, multiple wireless technologies coexist and compete for spectrum resources, resulting in degraded spectrum efficiency and security. This project aims to enhance the reliability and security of smart home networks by leveraging the security and energy efficiency properties of ultrasonic communication, and by integrating them with radio-frequency technology. The success of this project will result in a new communication system that can provide secure and reliable communication on two different types of spectrum - radio-frequency and ultrasound - to help alleviate the crowded radio frequency spectrum and prevent aggregated security attacks. The proposed project aims to significantly improve the security of smart home networks, and will also have a positive impact on education through the creation of new wireless security course projects and modules; provision of research training opportunities for undergraduate and graduate students of underrepresented groups; and broad dissemination of project results through high-profile tutorials, talks, publications, software tool kits, and open-source sites. The goal of this project is to develop novel, practical and foundational solutions to secure smart home IoT networks. The research focuses on the following objectives: 1) Develop and assess the performance of a hybrid ultrasound/radio-frequency transceiver using a wideband ultrasonic transducer to enable secure and reliable IoT communication by leveraging phased acoustic array technology; 2) Ensure the robustness of IoT communications by developing multiple-input multiple-output (MIMO) interference cancellation and directional ultrasonic anti-jamming communication technologies; and 3) Design a location-restricted device authentication mechanism without the reliance on credentials by leveraging signal features of the ambient radio-frequency and ultrasonic signals, aiming for for immediate and trustworthy authentication of IoT devices. The proposed solution will be tested using large-scale simulations and experimentally tested via software-defined radio testbeds and ultrasonic radio prototypes. The project pursues advances in our understanding of security in smart home IoT networks, thereby providing guidance on the design of next-generation smart home systems.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.