论文标题
频谱 - 芬芳的安全广播范围
Spectrum-Flexible Secure Broadcast Ranging
论文作者
论文摘要
安全的范围有望在几种新兴应用中发挥关键作用，例如自动驾驶汽车，无人机系统，无线物联网设备和增强现实。在本文中，我们提出了具有独特功能和技术的安全广播范围系统的设计。它的频谱弹性和低功率短距离爆发使现有系统（例如2.4GHz ISM频段）共存。我们利用一组RF技术，例如上采样和连续的干扰取消，即使在狭窄的频谱频段进行操作时，也可以高精度和可扩展性。我们证明它可以在流行的SDR平台FPGA和/或主机（具有最小的FPGA修改）上实现。协议设计以及密码生成/检测到的信号以及传输的随机时间，可为拒绝服务，嗅探和距离操纵攻击提供隐身和安全性。通过广泛的实验评估（以及对100多个反射器的可伸缩性模拟），我们证明了在各种SNR（低至0DB）的20厘米低于20厘米的精度，Spectrum 25MHz-100MHz，突发的爆发时间短于5US。
Secure ranging is poised to play a critical role in several emerging applications such as self-driving cars, unmanned aerial systems, wireless IoT devices, and augmented reality. In this paper, we propose a design of a secure broadcast ranging systems with unique features and techniques. Its spectral-flexibility, and low-power short ranging bursts enable co-existence with existing systems such as in the 2.4GHz ISM band. We exploit a set of RF techniques such as upsampling and successive interference cancellation to achieve high accuracy and scalability to tens of reflectors even when operating over narrow bands of spectrum. We demonstrate that it can be implemented on popular SDR platforms FPGA and/or hosts (with minimal FPGA modifications). The protocol design, and cryptographically generated/detected signals, and randomized timing of transmissions, provide stealth and security against denial of service, sniffing, and distance manipulation attacks. Through extensive experimental evaluations (and simulations for scalability to over 100 reflectors) we demonstrate an accuracy below 20cm on a wide range of SNR (as low as 0dB), spectrum 25MHz-100MHz, with bursts as short as 5us.
