Proactive Doppler Shift Compensation in Vehicular Cyber-Physical Systems

Understand

In vehicular cyber-physical systems (CPS), safety information, including vehicular speed and location information, is shared among vehicles via wireless waves at specific frequency.

• This helps control vehicle to alleviate traffic congestion and road accidents.
• However, Doppler shift existing between vehicles with high relative speed causes an apparent frequency shift for the received wireless wave, which consequently decreases the reliability of the recovered safety information and jeopardizes the safety of vehicular CPS.
• Passive confrontation of Doppler shift at the receiver side is not applicable due to multiple Doppler shifts at each receiver.