Emergent information diffusion in RFID systems on roads

The framework of RFID systems on Roads (RSR) was recently proposed to improve the driving safety and the drivers´ comfortability. In RSR, RFID readers are installed on vehicles, and passive RFID tags are deployed on each lane. The tags store the lane level road information, which will be provided to the vehicles when they are passing by the tags. As the RFID tags are passive and have to be programmed/updated by vehicles, a native challenge in RSR is how to quickly update the information stored in all the tags when emergent events occur. In this digest paper, we design a multi-tag information diffusion algorithm, which can fast and accurately update all the tags´ information. Simulations demonstrate that the proposed algorithm is effective in all the testing environments.