能量收集驱动的多无人机网络能量效率最大化
首发时间:2019-01-23
摘要:随着科技的不断发展,无人机在通信领域的应用越来越广泛。无人机具有部署便捷、成本低廉以及配置灵活等优点,因此可以快速搭建无人机网络,为地面设备提供连接。但是,由于无人机能源、负载有限,所以常使用能量收集技术提高网络能量效率(Energy Efficiency, EE)。首先,本文提出了一个新型多无人机网络模型,并利用能量收集技术为地面用户提供能量,采取多中继的方式将用户信息传输到目标基站。其次,将无人机网络的能量效率作为优化目标,基于块坐标下降算法提出了一种新型的联合优化算法,对网络的不同参数分别进行优化。最后,仿真结果表明新提出的算法能有效提升无人机网络的能量效率。
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Energy Efficiency Maximization of Multi-UAV Network Driven by Energy Harvesting
Abstract:With the development of science and technology, unmanned aerial vehicles (UAVs) are widely used in the field of communication. UAVs have the advantages of being easy to deploy, low cost and flexible performances, so that UAV network can be built quickly to provide coonection for ground equipment. However, due to the limited load of UAV, energy havesting technology is frequently used to improve the energy efficiency (EE) of network. Firstly, a new multi-UAV network model is proposed, and energy harvesting technology is used to provide energy for ground users. Multi-relay mode is adopted to help users to transmit information to target base station. Secondly, in order to maximize the EE of UAV network, a new joint optimization algorithm based on block coordinate decent algorithm is proposed to optimize several parameters of the network. Finally, simulation results show that the proposed algorithm can improve the EE of UAV network.
Keywords: Unmanned aerial vehicle network Joint Optimization Energy harvesting Mobile relay
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