基于SAC-OCDMA系统的不同编码性能研究  

Performance analysis of different coding based on SAC-OCDMA system

作　　者：李立[1,2] 李宏杰[2] LI Li;LI Hongjie(College of Information Engineering,East China Jiaotong University,Nanchang 330000;College of Electronic Information and Electrical Engineering,Anyang Institute of Technology,Anyang 455000,China)

机构地区：[1]华东交通大学信息工程学院,江西南昌330000 [2]安阳工学院电子信息与电气工程学院,河南安阳455000

出　　处：《现代电子技术》2020年第2期164-167,173,共5页Modern Electronics Technique

基　　金：国家自然科学基金河南省人才培养联合基金（U1204613）;河南省科技厅科技攻关项目(172102310671)

摘　　要：该文建立了不同用户的频谱幅度编码光码分多址SAC-OCDMA的传输模型,利用VPI光通信软件(VPI Transmission Maker)进行仿真测试。在不同功率代价、传输距离、传输速率和用户数等条件下,以色散性能和误码率为对比指标,对修正双重权重码MDW,增强双重权重码EDW,零交叉相关ZCC和随机对角线码RDC进行对比。测试结果表明,在有效地减少多址干扰MAI和相位诱导强度噪声PIIN的效果上,ZCC的性能最好,RDC代码的灵活性具有优势。In this paper,a transmission model of SAC⁃OCDMA system for different users is built to carry out the simulation test with the VPI transmission Maker.Under the conditions of different power cost,transmission distance,transmission rate and quantity of users,the chromatic dispersion performance and bit error rate are taken as the contrast indexes to evaluate the comparison among the MDW,the EDW,the ZCC and the RDC.The testing results show that ZCC has the best performance in effectively reducing the MAI and PIIN effects,and the RDC code has the advantage of flexibility.

关 键 词：编码性能 SAC-OCDMA 建立模型 误码率 传输性能 仿真测试 

分 类 号：TN929.11-34[电子电信—通信与信息系统]