Collaborative Research: NSF-AoF: CNS Core: Small: Secure Wireless Powered Backscatter Communication for IoT

合作研究：NSF-AoF：CNS 核心：小型：物联网安全无线供电反向散射通信

• 批准号: 2131406
• 负责人: Emmanouil Tentzeris
• 金额: $ 22万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-10-01 至 2024-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2131406&HistoricalAwards=false
• 关键词: Collaborative; Research; NSF; AoF; CNS; Collaborative; Research; NSF; AoF; CNS

Wireless powered backscatter communication (WPBC) has emerged as a promising technology to support long-term, low-cost, and low-complexity Internet-of-Things (IoT) device communications and networking. Ensuring WPBC security is crucially important to drive its wide applications, e.g., smart cities, smart wearables, smart agriculture, smart skins, mobile payment, and supply chain. However, resource constraints on backscatter devices and the broadcast nature of radio transmissions render the securing of WPBC challenging. Aiming to enhance the resource-constrained WPBC network security, the PIs propose novel techniques that exploit physical layer properties of WPBC and machine learning technologies to achieve efficient key agreement, anti-jamming communication, and robust device authentication with joint consideration of energy efficiency, security, and communication performance. The proposed research is expected to greatly advance the understanding of the design tradeoff between communication and security performance goals in WPBC networks. Under-represented students will be actively involved in the proposed research activities through senior design projects, summer interns, and outreach programs. Research results will be integrated in teaching and disseminated through publications, presentations, and a project website. A significant amount of experimental data will be collected and shared to the wireless communication and networking community.Three major research thrusts are proposed in this project. Thrust 1 investigates efficient and scalable key generation schemes between/among wireless powered backscatter devices. Unique challenges in backscatter communication and resource constraints will be efficiently addressed by transceiver designs and optimization. The energy efficiency of the proposed schemes is expected to outperform traditional cryptography-based schemes (e.g., Diffie-Hellman Key Exchange) by one to two orders of magnitude. Thrust 2 studies anti-jamming schemes based on multi-armed bandit (MAB) online learning frameworks to effectively harvest jamming energy to achieve reliable and efficient WPBC in a multi-channel network. The proposed scheme will turn jamming into an energy harvesting opportunity while achieving reliable communication through learning the jammed and jamming-free channels online. The proposed scheme will enjoy low computational and storage overhead. In Thrust 3, the proposed device authentication schemes are expected to achieve high authentication performance by exploiting new factors (i.e., incident signal randomization, angle of arrival estimation) at the physical layer. They can be integrated with higher layer cryptography-based authentication schemes to enable multi-factor authentication with capabilities of detecting and tracing illegal devices. A multi-channel WPBC testbed operating in sub-6GHz bands will be developed based on the wireless identification and sensing platform (WISP) and Universal Software Radio Peripheral (USRP) devices.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.

无线驱动的反向散射通信（WPBC）已成为支持长期，低成本和低复杂的通信（IoT）设备通信和网络的有前途的技术。确保WPBC安全对于推动其广泛的应用程序至关重要，例如智能城市，智能可穿戴设备，智能农业，智能皮肤，移动付款和供应链。但是，对反向散射设备的资源限制以及无线电传输的广播性质，使WPBC的确保挑战性。为了增强资源受限的WPBC网络安全性，PIS提出了新技术，以利用WPBC和机器学习技术的物理层特性，以实现有效的关键协议，反判断性沟通以及可靠的设备身份验证，并考虑能源效率，安全性和通信性能的共同考虑。预计拟议的研究将大大提高WPBC网络中沟通和安全性能目标之间的设计权衡的理解。代表性不足的学生将通过高级设计项目，暑期实习生和外展计划积极参与拟议的研究活动。研究结果将通过出版物，演示和项目网站整合到教学中。将收集大量的实验数据并与无线通信和网络社区共享。在该项目中提出了三项重大的研究推力。推力1研究了无线电动反向散射设备之间/之间的高效且可扩展的密钥生成方案。收发器的设计和优化将有效地解决反向散射通信和资源约束中的独特挑战。拟议方案的能源效率有望超过传统的加密方案（例如Diffie-Hellman密钥交换）的能源效率一到两个数量级。推力2研究基于多臂Bandit（MAB）在线学习框架的反杀伤方案，以有效收获融合能量，以在多渠道网络中实现可靠有效的WPBC。拟议的计划将通过在线学习和无障碍的频道来实现可靠的沟通，将其融入能源收获的机会。拟议的计划将享有低计算和存储开销。在推力3中，预计所提出的设备身份验证方案将通过利用新的因素（即入射信号随机化，到达角度估计）来实现高认证性能。它们可以与基于高密码学的身份验证方案集成，以实现具有检测和追踪非法设备功能的多因素身份验证。将根据无线标识和传感平台（WISP）和通用软件无线电外围设备（USRP）设备开发在Sub-6GHz频段中运行的多渠道WPBC测试床。该奖项反映了NSF的法定任务，并已通过评估该基金会的知识绩效和广泛的影响来评估NSF的法定任务。