用遗传算法构造光正交码  

Optical orthogonal codes construction using genetic algorithms

作　　者：尹霄丽[1] 张琦[1] 宋厚泽[1] 刘小磊[1] 余重秀[1] 

机构地区：[1]北京邮电大学电子工程学院光通信与光波技术教育部重点实验室,北京100876

出　　处：《光学技术》2008年第6期809-812,共4页Optical Technique

基　　金：国家自然科学基金资助项目(60577045);教育部高等学校博士学科点资助项目(50050013002)

摘　　要：提出了一种利用遗传算法构造任意码长、码重、自相关限、互相关限光正交码(GA-OOC)的方法,设计了新的码字矩阵;分析了基于GA-OOC的光CDMA系统的误码率性能。仿真结果表明:该算法具有构造算法简单、易于编程实现的特点;与基于PC,EPC,QC和BIBD-OOC的光码分多址系统相比,GA-OOC的光码分多址系统具有更好的误码率性能。GA-OOC有望用于构造二维光地址码。The modified construction method for optical orthogonal codes （GA-OOC） with any given code length, code weight, auto-correlation constraint, eross-correlation constraint based on genetic algorithms is studied. The new method to design code matrix is proposed. The bit error rate for systems with GA-OOC as OCDMA address codes is analyzed. The simulation results indicate that this algorithm is simple to implement by computer programming, the systems with GA-OOC have a lower bit error rate compared with the systems using PC, EPC, QC and BIBD-OOC. The GA-OOC is perspective to construct two dimensional optical address codes.

关 键 词：光纤通信技术 光正交码 光码分多址 遗传算法 误码率 

分 类 号：TN929.11[电子电信—通信与信息系统]