This paper investigates a UAV-enabled wireless downlink system, where a UAV-enabled base station flies above a group of Internet of things devices (IoTDs) and transmits data to them. In order to ensure the fairness among all IoTDs, we jointly optimize scheduling association and UAV trajectory to maximize the minimal throughput of all IoTDs under the 3dimensional (3-D) channel model. Meanwhile, to ensure the stability of communication, we aim to guarantee a high probability of line-of-sight (LoS) links between the UAV and all IoTDs. The optimization problem is non-convex and we propose an iterative algorithm based on the block coordinate descent and successive convex approximation to solve it. Furthermore, we show the convergence of the algorithm through simulations. It is shown that the proposed algorithm achieves higher data rate than the traditional scheme without guaranteeing the LoS probability.


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    Title :

    UAV-Assisted Data Rate Maximization Under 3-D Channel Model


    Contributors:
    Lin, Jianzhen (author) / Pan, Cunhua (author) / He, Chunlong (author) / Wang, Kezhi (author)


    Publication date :

    2021-04-01


    Size :

    2082280 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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