NeTS: Small: Vibratory Communications and Applications

数据通信已经在广泛的模式下进行了研究，包括射频（RF），声学和可见光。 通过振动通道进行通信的可能性还相对未被探索。该项目探讨了与数字通信相关的基本限制和新算法，这些数字通信是在所有现代智能手机中嵌入的振动电机和加速度计的背景下通过振动进行的。 数据传输的相应速度可能与已建立的通信模式（如近场通信（NFC）或蓝牙）不匹配，但我们提出，只要安全性至关重要，振动通信就提供了固有的优势：例如，任何两个设备都可以通过相互敲击来自发地交换安全密钥;佩戴智能手表的用户可以仅通过使手表与她的膝上型计算机接触来将她的密码输入到她的膝上型计算机中;不应留下可追踪痕迹的秘密通信也许也是振动通信的一种应用。 该项目启动了通过振动进行可靠和有效通信的第一原理研究，并建议在振动致动器和传感器上开发具体的通信/网络堆栈。该系统的容量和可行性将在不同的平台（智能手机、智能手表、指环）上进行测试，重点是现实世界的用例和应用程序。本项目的核心研究分为四个主要方面：（1）振动发射机和接收机的建模和理解这种系统的理论容量;（2）使用新的和现有的技术相结合的振动无线电设计;（3）开发控制信道访问和故障恢复的介质访问控制层;（4）开发一个用于控制信道访问和故障恢复的介质访问控制层。（4）了解由于振动引起的信息泄漏（和侧信道），并开发减轻它们的技术。

Data communication has been studied over a wide range of modalities, including radio frequency (RF), acoustic and visible light. The possibility of communicating over the vibratory channel has been relatively unexplored. This project explores the fundamental limits and new algorithms associated with digital communication via vibrations in the context of vibration motors and accelerometers embedded inside all modern smartphones. The corresponding speed of data transfer may not match established communication modalities such as Near-Field Communication (NFC) or Bluetooth, but we propose that vibratory communication offers inherent advantages whenever security is vital: for instance, any two devices may be able to spontaneously exchange security keys by tapping each other; a user wearing a smart watch may enter her passwords into her laptop by merely bringing the watch in contact with her laptop; clandestine communications that should not leave a trackable trace could perhaps also be an application of vibratory communication. This project initiates a first-principles study of reliable and efficient communication via vibration and proposes to develop a concrete communication/networking stack on vibratory actuators and sensors. The system's capacity and viability will be tested across different platforms (smartphone, smartwatch, finger rings), with a focus on real-world use-cases and applications. The core research in this project is divided into 4 main threads: (1) modeling the vibratory transmitters and receivers and understanding the theoretical capacity of such systems; (2) designing a vibratory radio using a combination of new and existing techniques; (3) developing a Medium Access Control layer that controls channel access and fault recovery; (4) understanding the information leakage (and side channels) due to vibrations and developing techniques to mitigate them.