| 用遗传算法构造光正交码 |
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| 引用本文： | 尹霄丽,张琦,宋厚泽,刘小磊,余重秀.用遗传算法构造光正交码[J].光学技术,2008,34(6). |
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| 作者姓名： | 尹霄丽 张琦 宋厚泽 刘小磊 余重秀 |
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| 基金项目： | 国家自然科学基金，高等学校博士学科点专项科研项目 |
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| 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。
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| 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 |
Optical orthogonal codes construction using genetic algorithms |
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| YIN Xiao-li,ZHANG Qi,SONG Hou-ze,LIU Xiao-lei,YU Chong-xiu.Optical orthogonal codes construction using genetic algorithms[J].Optical Technique,2008,34(6). |
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| Authors: | YIN Xiao-li ZHANG Qi SONG Hou-ze LIU Xiao-lei YU Chong-xiu |
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| Abstract: | The modified construction method for optical orthogonal codes (GA-OOC) with any given code length,code weight,auto-correlation constraint,cross-correlation constraint based on genetic algorithms is studied.The new method to de- sign code matrix is proposed.The bit error rate for systems with GA-OOC as OCDMA address codes is analyzed.The simula- tion 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. |
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| Keywords: | optical fiber communication technology optical orthogonal codes (OOC) optical code division multiple access (OCDMA) genetic algorithms bit error rate (BER) |
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