The current Cellular Vehicle-to-Everything (C-V2X) Sidelink communication protocol provides a low latency interface for sharing short safety messages among Road-Side Units and vehicles. However, while its packets are broadcasted in the channel, the throughput is vulnerable to channel conditions and cannot meet the needs of the emerging connected and autonomous vehicles applications (e.g. vehicular fusion tasks), which require multimodal and multi-source sensor data sharing. In this work, we establish a C-V2X testbed on the campus of the University of California, San Diego, to study the feasibility of using C-V2X Sidelink communications for transmitting sensor data in real-time. We implement an end-to-end RGB sensor data (i.e. camera image frames) transmission mechanism on the C-V2X Sidelink testbed and explore the corresponding Quality of Service (QoS) characteristics under two configurable link-level parameters, the Modulation and Coding Scheme (MCS) and packet size. We then propose a cross-layer predictive and adaptive framework which adjusts, in real-time, the MCS and packet size settings based on side-channel information to optimize the QoS for image frame transmission. The real-world trace-driven emulation shows that the proposed policy improves the average frame goodput performance by 28% compared to fixed configuration policies that are used in current Sidelink communications.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Adaptive C-V2X Sidelink Communications for Vehicular Applications Beyond Safety Messages


    Contributors:
    Ku, Yu-Jen (author) / Flowers, Bryse (author) / Thornton, Samuel (author) / Baidya, Sabur (author) / Dey, Sujit (author)


    Publication date :

    2022-06-01


    Size :

    4175381 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    TECHNIQUES FOR SHARING SENSOR MESSAGES IN SIDELINK COMMUNICATIONS

    MARSH GENE WESLEY / VASSILOVSKI DAN / PATIL SHAILESH et al. | European Patent Office | 2022

    Free access

    TECHNIQUES FOR SHARING SENSOR MESSAGES IN SIDELINK COMMUNICATIONS

    MARSH GENE WESLEY / VASSILOVSKI DAN / PATIL SHAILESH et al. | European Patent Office | 2023

    Free access

    Techniques for sharing sensor messages in sidelink communications

    MARSH GENE WESLEY / VASSILOVSKI DAN / PATIL SHAILESH et al. | European Patent Office | 2023

    Free access

    TECHNIQUES FOR SHARING SENSOR MESSAGES IN SIDELINK COMMUNICATIONS

    MARSH GENE WESLEY / VASSILOVSKI DAN / PATIL SHAILESH et al. | European Patent Office | 2022

    Free access

    Vehicular radar interference management using basic safety messages

    VA VUTHA / SHIMIZU TAKAYUKI / BANSAL GAURAV | European Patent Office | 2020

    Free access