Performance Analysis of WDM-MIMO Free Space Optical System Under Atmospheric Turbulence
Performance Analysis of WDM-MIMO Free Space Optical System Under Atmospheric Turbulence
复制标题
大气湍流下WDM-MIMO自由空间光系统性能分析
DOI：
10.1109/spin.2019.8711685
复制
发表时间：
2019
期刊：
影响因子：
1.8
通讯作者：
Sanmukh Kaur
中科院分区：
文献类型：
--
作者：
Ashad Ahmed;Aloukik Singh;Akansha Singh;Sanmukh Kaur
波分复用（WDM）广泛用于光纤中以更有效地利用光纤信道的容量。研究表明，在可见光范围内，WDM也可以用于自由空间光通信（FSO）系统，以改善系统的性能。进一步朝着FSO通信系统的改进迈出一步，多输入多输出（MIMO）FSO链路由于其在大气闪烁下的性能而越来越受欢迎，大气闪烁是由于光学介质的折射率的变化而发生的，光学介质的折射率的变化是由于在光学信号的传播路径上的不同观测点处的介质的密度和压力的变化而发生的。本文重点分析了FSO-WDM、FSO-MIMO和FSO-WDM-MIMO系统在不同天气条件下的性能。不同系统的性能也进行了比较，在接收信号的功率和接收信号的质量因子为阴霾的气氛。
Wavelength Division Multiplexing (WDM) is widely used in fiber optics to utilize the capacity of a fiber channel more efficiently. Studies show that WDM could also be utilized in free space optical communication (FSO) systems to improve the performance of system considering the frequencies lying in visible light spectrum range. Taking a step further towards the improvement of the FSO communication systems, multiple-input-multiple-output (MIMO) FSO links are gaining popularity as a result of their performance under atmospheric scintillation occurring due to variation of index of refraction of the optical medium due to variations in density and pressure of the medium at different points of observation over the path of propagation of an optical signal. This paper particularly focuses on analyzing the performance of FSO-WDM, FSO-MIMO and FSO-WDM-MIMO systems considering different weather conditions. Performance of the different systems has also been compared in terms of received signal power and the quality factor of the received signal for haze atmosphere.