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<p>This paper studies an unmanned aerial vehicle (UAV) assisted short-packet communication (SPC) system, where a multi-antenna ground control station (GCS) transmits command and control signals to a UAV flying in a circular trajectory at a certain altitude. In particular, we focus on evaluating the fast and reliable transmission of the command and control information (CCI), which is one of important requirements in the UAV networks. Indeed, the SPC and maximal-ratio transmission are employed to send the CCI from the GCS to the UAV. Subject to a constraint of average block error rate, we first derive an closed-form expression of average achievable rate (AAR) for the considered system over Nakagami-<i>m</i> fading channel, where Line-of-Sight probability, large-scale fading and small-scale fading are considered. Then, to obtain insights into impact of the system parameters on the AAR performance, we derive a closed-form lower-bound expression of the AAR. Importantly, the lower-bound expression of AAR is valid for arbitrary fading severity parameter <i>m</i>. Moreover, we can determine the largest possible trajectory radius for the UAV at different altitudes, ensuring that the rate of the control signal to the UAV remains above a specified threshold.</p>

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Average Achievable Rate Analysis for Reliable Control in UAV-Based Short-Packet Communication Networks

  • 期刊论文

  • 发表日期：

    2025年1月23日

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  • Pham Minh Nam,
  • Hoang Van Toan,
  • Ngo Hoang An,
  • Nguyen Quang Sang,
  • Tran Trung Duy

摘要

This paper studies an unmanned aerial vehicle (UAV) assisted short-packet communication (SPC) system, where a multi-antenna ground control station (GCS) transmits command and control signals to a UAV flying in a circular trajectory at a certain altitude. In particular, we focus on evaluating the fast and reliable transmission of the command and control information (CCI), which is one of important requirements in the UAV networks. Indeed, the SPC and maximal-ratio transmission are employed to send the CCI from the GCS to the UAV. Subject to a constraint of average block error rate, we first derive an closed-form expression of average achievable rate (AAR) for the considered system over Nakagami-m fading channel, where Line-of-Sight probability, large-scale fading and small-scale fading are considered. Then, to obtain insights into impact of the system parameters on the AAR performance, we derive a closed-form lower-bound expression of the AAR. Importantly, the lower-bound expression of AAR is valid for arbitrary fading severity parameter m. Moreover, we can determine the largest possible trajectory radius for the UAV at different altitudes, ensuring that the rate of the control signal to the UAV remains above a specified threshold.