Promising vehicle-to-everything (V2X) communication technologies can increase road safety by periodically broad-casting Cooperative Awareness Messages (sCAMs) that contain vehicles' status and attribute information, such as time, location, velocity, motion state, and vehicle type, to all nearby vehicles. However, out-of-date information and prediction deviations may cause potential risks and severe vehicle safety problems. In this paper, we propose an efficient safety-aware CAM broadcast rate control algorithm termed DESBRAC for vehicles to consider more safety metrics and determine the CAM broadcast rates cooperatively. Furthermore, we introduce Over-the-Air Computation (AirComp) to help vehicles aggregate information from their nearby vehicles instantly for metric estimation and cooperative CAM broadcast rate determination. Finally, the simulation results based on a simple and a realistic scenarios of vehicular networks show that our algorithm can achieve an improvement of about 31% in driving safety compared to the state-of-the-art algorithms.


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    Title :

    AirComp-aided Safety-aware CAM Broadcast Rate Control in C-V2X Sidelink


    Contributors:


    Publication date :

    2023-06-01


    Size :

    2194645 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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