一种新的光CDMA系统地址码的构造与分析  

Structure and analysis of a novel address code for optical CDMA systems

作　　者：丁涛[1] 陈长缨[1] 胡国永[1] 

机构地区：[1]暨南大学光电工程研究所,广东广州510632

出　　处：《光通信研究》2007年第1期21-23,共3页Study on Optical Communications

基　　金：广州市重点攻关项目(33105001)

摘　　要：基于对LSOOC码的修正,提出了一种光谱幅度编码光码分多址(SAC-OCDMA)地址码的设计方案。分析了码字特性,与Hardmard、MQC、MFH、BIBD(m=2)码做了比较,设计了可调谐光纤布拉格光栅(FBG)编解码器,阐述了编解码原理。分析结果表明,该码字容量大,编解码方法简单,在光源和信道理想条件下可以消除多址干扰。On the basis of the modification of LSOOC, a new design plan for the address code for the spectral-amplitude-coding optical CDMA （SAC-OCDMA） system is proposed. The characteristics of the code words are analyzed, its comparisons with Hardmard, MQC, MFH, BIBD （m = 2） made, tunable Fiber Bragg Grating （FBG） codec designed and the principle of coding and deeoding explained. The analytical results reveal that the new code word is large in capacity, simple in coding and decoding and immune from Multi-Address Interference （MAI） when the optical source and channel are ideal.

关 键 词：光码分多址 光谱幅度编码 Latin方阵光正交码 多址干扰 光纤布拉格光栅 

分 类 号：TN929.11[电子电信—通信与信息系统]