| 无人飞行器中继双跳无线链路中的优化设计及性能分析 |
| |
| 引用本文： | 林敏,魏恒,欧阳键,安康,党军宏.无人飞行器中继双跳无线链路中的优化设计及性能分析[J].系统工程与电子技术,2015,37(6):1391-1398. |
| |
| 作者姓名： | 林敏 魏恒 欧阳键 安康 党军宏 |
| |
| 作者单位： | 1. 解放军理工大学南京电讯技术研究所, 江苏 南京 210007; 2. 东南大学移动通信国家重点
实验室, 江苏 南京 210096; 3. 解放军理工大学通信工程学院, 江苏 南京 210007;
4. 南京邮电大学信号处理与传输研究院, 江苏 南京 210003 |
| |
| 摘 要： | 基于无人飞行器(unmanned aerial vehicle, UAV)的中继传输系统为远距离数据传递提供可靠高效的无线链路,是当前通信领域的一个研究热点。本文首先建立基于UAV的双跳放大转发(amplify-and-forward, AF)中继链路传输模型,得到等效的输出信噪比(signal-to-noise ratio, SNR)表达式;接着提出最大化互信息量准则下的最优波束形成及功率分配方案,并进一步推导出双跳中继系统中断概率和遍历容量的解析表达式;最后计算机仿真不仅验证了所提出的优化方案和性能分析的有效性,而且证明了UAV中继平台配置多天线和优化设计所具有的优越性。
|
Optimal design and performance analysis for two-hop wireless links with UAV relaying |
| |
| LIN Min,WEI Heng,OUYANG Jian,AN Kang,DANG Jun-hong.Optimal design and performance analysis for two-hop wireless links with UAV relaying[J].System Engineering and Electronics,2015,37(6):1391-1398. |
| |
| Authors: | LIN Min WEI Heng OUYANG Jian AN Kang DANG Jun-hong |
| |
| Institution: | 1. Nanjing Institute of Telecommunication Technology, PLA University of Science and Technology,;
Nanjing 210007, China; 2. National Mobile Communications Research Laboratory, Southeast University,;
Nanjing 210096, China; 3. College of Communication Engineering, PLA University of Science and Technology,;
Nanjing 210007, China; 4. Institute of Signal Processing and Transmission, Nanjing;
University of Posts and Telecommunications, Nanjing 210003, China |
| |
| Abstract: | The relay transmission system using unmanned aerial vehicle (UAV) has received much attention recently, since it can provide reliable and efficient wireless connectivity for the remote transmission between two separated nodes. A two-hop amplify-and-forward (AF) relay transmission model based on the UAV is set up firstly, and the expression of equivalent signal-to-noise ratio (SNR) is obtained. Then, a novel scheme joint optimal beamforming with power allocation is proposed to maximize the mutual information of the relay system. Next, the analytical expressions of the outage probability and the ergodic capacity are derived to investigate the system performance efficiently. Finally, computer simulation results prove that not only the validity of the proposed scheme and the performance analysis is examined, but also the superiority of the employed multiple antennas as well as the optimal design is confirmed. |
| |
| Keywords: | |
|
| 点击此处可从《系统工程与电子技术》浏览原始摘要信息 |
| 点击此处可从《系统工程与电子技术》下载免费的PDF全文 |
|
