Air-ground cooperative vehicular networks (AGCVNs) are envisioned to be a significant component of 6G communication systems to support a much higher data transmission rate and better quality of service (QoS). In such networks, unmanned aerial vehicles (UAVs) can play a key role as relays in the air to enhance the system coverage and capacity, while the performance is heavily restricted by their limited onboard power resource. In this article, we propose a transmission power optimization method to reduce the power consumption of an AGCVN meanwhile guaranteeing the satisfaction of transmission demands. In the AGCVN, we take into account multiple UAVs as a set of aerial relays to support cooperative vehicular communication. We formulate a constrained nonlinear optimization model with the goal of minimizing the transmission power of both the vehicular source node and the flying relays under the demand constraints on the data transmission rate. To deal with the nonlinearity and complexity in the model, we further propose an iterative programming algorithm based on sequential quadratic convex approximation. Sufficient simulation results are finally provided to validate the effectiveness of our proposed method and show its superior performance over several conventional schemes in terms of lower power consumption.


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    Titel :

    Transmission Power Optimization for An Air-Ground Cooperative Vehicular Network


    Beteiligte:
    Qu, Guixian (Autor:in) / Zhang, Songge (Autor:in) / Zhou, Jianshan (Autor:in) / Tian, Daxin (Autor:in) / Sheng, Zhengguo (Autor:in) / Ran, Xuejun (Autor:in) / Li, Lei (Autor:in) / Guo, Shengmin (Autor:in)


    Erscheinungsdatum :

    15.10.2021


    Format / Umfang :

    680640 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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