Scholarlink

<p>Unmanned Aerial Vehicles (UAVs) can provide flexible wireless connectivity in temporary hotspots and disaster-stricken areas, but their energy constraints remain a challenge. In this paper, we propose a laser-powered UAV relay system where UAVs harvest energy from ground-based laser transmitters and operate in a multi-link shared spectrum environment. With the goal of maximizing the minimum system link throughput, we formulate a joint optimization problem for UAV trajectory and power control and propose an iterative algorithm to efficiently manage energy and mitigate co-channel interference while solving this non-convex problem. Simulation results validate the effectiveness of the proposed scheme and highlight significant performance gains achieved through joint optimization, underscoring the potential of laser-powered UAVs to overcome energy limitations and enhance overall system performance.</p>

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Performance optimization of multilink laser powered UAV relay systems

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年4月13日

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  • Xuehui Zhao,
  • Yuanchang Zhong,
  • Zhongyuan Mao,
  • Xunzhuo He

摘要

Unmanned Aerial Vehicles (UAVs) can provide flexible wireless connectivity in temporary hotspots and disaster-stricken areas, but their energy constraints remain a challenge. In this paper, we propose a laser-powered UAV relay system where UAVs harvest energy from ground-based laser transmitters and operate in a multi-link shared spectrum environment. With the goal of maximizing the minimum system link throughput, we formulate a joint optimization problem for UAV trajectory and power control and propose an iterative algorithm to efficiently manage energy and mitigate co-channel interference while solving this non-convex problem. Simulation results validate the effectiveness of the proposed scheme and highlight significant performance gains achieved through joint optimization, underscoring the potential of laser-powered UAVs to overcome energy limitations and enhance overall system performance.