A trajectory optimization method for UAV cascade relay broadcast communication system

Q3 Engineering

西北工业大学学报 Pub Date : 2023-06-01 DOI:10.1051/jnwpu/20234130579

Dongxia Li, Siyu Song, Haitao Liu

{"title":"A trajectory optimization method for UAV cascade relay broadcast communication system","authors":"Dongxia Li, Siyu Song, Haitao Liu","doi":"10.1051/jnwpu/20234130579","DOIUrl":null,"url":null,"abstract":"An unmanned aerial vehicle's(UAV) trajectory optimization is an important way to improve the performance of its relay communication system. The trajectory optimization method for the UAV cascade relay broadcast communication system that uses the decoding and forwarding protocols is studied. Firstly, the expressions of the signal-to-noise ratio of the UAV and the user are given. Then, a joint trajectory optimization method and a distributed trajectory optimization method for cascaded UAVs based on the minimized maximum user interruption probability are proposed. The transmission performance of the system link that uses the two trajectory optimization methods is studied; the mathematical expressions of the relay communication system's traverse capacity and the outage probability of a single user are given. Finally, the influence of the relay communication system's characteristic parameters on the optimal trajectory of the cascade relay UAV and its performance are verified with computer simulations. The simulation results show that the performance of the two trajectory optimization methods is basically the same, thus verifying the effectiveness of the trajectory optimization criterion.","PeriodicalId":39691,"journal":{"name":"西北工业大学学报","volume":" ","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"西北工业大学学报","FirstCategoryId":"1093","ListUrlMain":"https://doi.org/10.1051/jnwpu/20234130579","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Engineering","Score":null,"Total":0}

引用次数: 1

Abstract

An unmanned aerial vehicle's(UAV) trajectory optimization is an important way to improve the performance of its relay communication system. The trajectory optimization method for the UAV cascade relay broadcast communication system that uses the decoding and forwarding protocols is studied. Firstly, the expressions of the signal-to-noise ratio of the UAV and the user are given. Then, a joint trajectory optimization method and a distributed trajectory optimization method for cascaded UAVs based on the minimized maximum user interruption probability are proposed. The transmission performance of the system link that uses the two trajectory optimization methods is studied; the mathematical expressions of the relay communication system's traverse capacity and the outage probability of a single user are given. Finally, the influence of the relay communication system's characteristic parameters on the optimal trajectory of the cascade relay UAV and its performance are verified with computer simulations. The simulation results show that the performance of the two trajectory optimization methods is basically the same, thus verifying the effectiveness of the trajectory optimization criterion.

查看原文本刊更多论文

无人机级联中继广播通信系统的轨迹优化方法

无人机轨迹优化是提高其中继通信系统性能的重要途径。研究了采用解码转发协议的无人机级联转播通信系统的轨迹优化方法。首先，给出了无人机和用户信噪比的表达式。然后，提出了一种基于最大用户中断概率最小化的级联无人机联合轨迹优化方法和分布式轨迹优化方法。研究了采用两种轨迹优化方法的系统链路的传输性能；给出了中继通信系统的遍历能力和单个用户的中断概率的数学表达式。最后，通过计算机仿真验证了中继通信系统的特性参数对级联中继无人机最优轨迹及其性能的影响。仿真结果表明，两种轨迹优化方法的性能基本相同，从而验证了轨迹优化准则的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊