Development of DSRC Radios upon the IEEE 802.11p Standard and Physical Layer Security for Automated and Connected Vehicles Applications
Weidong Xiang, PhD
Associate Professor, Electrical and Computer Engineering, U-M Dearborn
May 2014 – April 2016
- To study, develop and implement DSRC radios for automated and connected vehicle applications under fast-varying mobility and hostile environments.
- Upon the development of DSRC radios, develop lightweight, scalable and robust physical modules for secure DSRC wireless access.
The foremost task in this project is to conduct extensive field-testing on the developed DSRC OBU/RSU under diverse road scenarios, in different traffic periods and with common weather conditions. Next, several relevant advanced physical technologies/schemes will be explored in order to enhance the transmission robustness; even they have not been included in current IEEE 802.11p standard. Upon development of DSRC radios, the multiple-input multiple-output (MIMO), beam forming, and spectrum awareness based channel selection will be developed and tested. Authentication is the first step to establish secure communication between two parties. This project proposes two building blocks to encrypt/hide challenge and response messages at the physical layer: one exploits the reciprocity, randomness, and location decorrelation properties of the wireless fading channel, and the other takes advantage of the time coherence and randomness of the wireless fading channel. For securing vehicular communication, we propose a new key generation mechanism without channel estimation. In this two-generation scheme, two communication parties send random OFDM signals to each other without preamble or reference signals while a shared secret can be established by exploiting channel reciprocity.
This project will largely advance the state-of-the-art of DSRC physical layer security.