| 认知无人机网络中次级链路吞吐量优化研究 |
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| 引用本文： | 达新宇,张宏伟,胡航,潘钰,井锦玲.认知无人机网络中次级链路吞吐量优化研究[J].电子与信息学报,2020,42(8):1934-1941. |
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| 作者姓名： | 达新宇 张宏伟 胡航 潘钰 井锦玲 |
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| 作者单位： | 1.空军工程大学信息与导航学院 西安 7100772.空军工程大学研究生院 西安 7100773.中国人民解放军94162部队 西安 710600 |
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| 基金项目： | 国家自然科学基金(61571460, 61901509, 61671475)，博士后创新人才计划(BX201700108)，空军工程大学校长基金 (XZJK2019033)，空军工程大学信息与导航学院创新基金 (YNLX1904025) |
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| 摘 要： | 无人机(UAV)的便携性和高机动性使其与认知无线电(CR)结合的应用场景更加实用。在构建的无人机认知无线网络(CRN)模型中，该文提出UAV单弧度吞吐量优化方案，在确保检测概率的前提下优化感知弧度最大化UAV平均吞吐量。考虑在信道条件不理想情况下进一步改善感知性能，提出基于协作频谱感知(CSS)的多弧度吞吐量优化方案，利用交替迭代优化(AIO)算法对感知弧度和弧度数量进行联合优化以最大化吞吐量。仿真结果表明，该文提出的多弧度协作频谱感知方案在信道衰落严重时，对于主用户(PU)服务质量(QoS)和UAV吞吐量有明显提升。
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| 关 键 词： | 认知无线电 无人机 频谱感知 帧结构 吞吐量 |
| 收稿时间： | 2020-01-14 |
Throughput Optimization of Secondary Link in Cognitive UAV Network |
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| Xinyu DA,Hongwei ZHANG,Hang HU,Yu PAN,Jinling JING.Throughput Optimization of Secondary Link in Cognitive UAV Network[J].Journal of Electronics & Information Technology,2020,42(8):1934-1941. |
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| Authors: | Xinyu DA Hongwei ZHANG Hang HU Yu PAN Jinling JING |
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| Affiliation: | 1.Information and Navigation College, Aire Force Engineering University, Xi’an 710077, China2.Graduate School, Aire Force Engineering University, Xi’an 710077, China3.Unit 94162 of PLA, Xi’an 710600, China |
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| Abstract: | The application of Unmanned Air Vehicles (UAV)-enabled Cognitive Radio (CR) is widely used due to the convenience and high mobility of the UAV. In the UAV-based Cognitive Radio Network (CRN), the throughput optimization scheme in single radian is firstly investigated, in which the sensing radian is optimized to maximize the average throughput of UAV. Then, a multi-radian throughput optimization scheme based on Cooperative Spectrum Sensing (CSS) is studied to improve the sensing performance under the non-ideal channel, and the throughput of the UAV is maximized by utilizing an Alternative Iterative Optimization (AIO) algorithm. The simulation results show that the proposed scheme has better performance on improving the throughput of the UAV and ensuring the Quality-of-Service (QoS) of the Primary User (PU) when the channel fading is serious. |
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