Performance Analysis of Shift ZCC Codes and Multi Diagonal Codes in 100 Gbps MDM-FSO System
Performance Analysis of Shift ZCC Codes and Multi Diagonal Codes in 100 Gbps MDM-FSO System
复制标题
100 Gbps MDM-FSO 系统中移位 ZCC 码和多对角码的性能分析
DOI：
10.1515/joc-2019-0264
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发表时间：
2020
影响因子：
--
通讯作者：
Kuldeepak Singh
中科院分区：
文献类型：
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作者：
Rupinder Kaur;Kuldeepak Singh
随着互联网应用的迅速发展，光通信系统面临着巨大的压力。自由空间光通信(FSO)是一种非常重要的光纤替代品，因为它省去了许可证、挖沟，而且没有方式成本，节省了安装时间。波分复用是一种容量增强型多路复用技术，但由于需要大量的激光器，因此成本较高。模分复用(MDM)是一种非常适合的复接技术，因为它只需要单个激光器，并且可以支持高速率的数据传输。在这项工作中，光码分复用和MDM在支持10个用户的FSO上以100Gbps的速率进行了演示。多址干扰是OCDMA码中的一个突出问题，为了抑制多址干扰，采用了零互相关码和拉盖尔-高斯模。分析了不同的光纤陀螺环境，并将移零码、互相关码和多对角码两种不同的OCDMA码结合在一起，从Q因子和误码率两个方面进行了比较。
Abstract With the rapid growth in the internet applications, pressure is observed on the optical communication systems. Free space optical communication (FSO) is very important alternative to the optical fiber because of elimination of licenses, trenching, and no cost of ways and saves the time of installation. Wavelength division is capacity enhancement multiplexing but due to large number of laser requirements, it becomes expensive. Mode division multiplexing (MDM) is suitable multiplexing technique because it needs only single laser and can support high data rates. Optical code division multiplexing and MDM is demonstrated in this work at 100 Gbps over FSO supporting 10 users. Multiple access interference is prominent issue in OCDMA codes and in order to suppress MAI, zero cross correlation codes are used and use of Laguerre Gaussian modes has been done. Different fog conditions are analyzed and two different OCDMA cods are incorporated as well as compared in the proposed system such as shift zero cross correlation codes and multi diagonal codes in terms of Q factor and BER.