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Energy Efficient Optimization for Solar-Powered UAV Communications System

Peiliang WuTimo HämäläinenZheng ChangSong XuXijuan Guo

subject

business.industryComputer scienceReal-time computingComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONComputerApplications_COMPUTERSINOTHERSYSTEMSEnergy consumptionCommunications systemComputer Science::Multiagent SystemsComputer Science::RoboticsTransmission (telecommunications)Computer Science::Systems and ControlTelecommunications linkTrajectoryWirelessComputerSystemsOrganization_SPECIAL-PURPOSEANDAPPLICATION-BASEDSYSTEMSbusinessEnergy (signal processing)Efficient energy use

description

In this work, we explore the energy efficiency optimization for a solar-powered unmanned aerial vehicle (UAV) communications system. We consider a scenario where a number of ground users (GUs) connect with a solar-powered multi-antenna UAV over a wireless link. First, we are able to derive the relations between the uplink data rate and heading angle of UAV and transmission power of GUs. In addition, the harvested energy from solar light is also affected by UAV’s angle. Accordingly, with the objective to maximize the energy efficiency that is related to uplink data rate and energy consumption, we propose to dynamically adjust the UAV trajectory and gesture, by optimizing its velocity, acceleration, heading angle and ground user transmission power. Performance evaluations demonstrate the advantages of the presented scheme on the design of solar-powered UAV communications system.

yearjournalcountryeditionlanguage
2021-06-012021 IEEE International Conference on Communications Workshops (ICC Workshops)
https://doi.org/10.1109/iccworkshops50388.2021.9473629