二维CWH-M矩阵在空频OCDMA网络中的应用  

Two-Dimensional CWH-M Matrices Coding in Spatial/Frequency OCDMA Networks

作　　者：周熹[1] 邱昆[1] 张崇富[1] 

机构地区：[1]电子科技大学宽带光纤传输与通信网技术教育部重点实验室

出　　处：《电子科技大学学报》2005年第S1期913-916,共4页Journal of University of Electronic Science and Technology of China

摘　　要：对一种新的补沃尔什哈达码-M(CWH-M)二维码,在空频二维OCDMA系统中的应用进行了研究, 实现了该码字的编解码方案和系统设计．理论分析得到该二维码在理论上可以实现完全正交,彻底消除多用户干扰．仿真结果表明了基于CWH-M二维码OCDMA系统性能比采用一维编解码方案和采用简单开关控制的二维编解码方案有了显著提高。A new tow-dimensional optical code with multiple-weight-per-row property and with cyclic relationship between codeword and its complement. The coding scheme and the spatial/frequency system configure is realized. The performance of the proposed system is analyzed. The theoretical analyse shows that, with this system, MAI can be perfectly cancelled and theoretically achieve quasiorthogonality between OCDMA users. The emulational result shows that the system performance can be improved compared to one-dimensi...

关 键 词：补沃尔什哈达码-M矩阵 阵列波导光栅路由器 多用户干扰 光码分多址系统 

分 类 号：TN929.533[电子电信—通信与信息系统]