一种改善FFH-OCDMA性能的非循环单重合码  

Non-cyclic One-coincidence Sequence for Enhancing the Performance of Optical Fast Frequency-Hopping CDMA Networks

作　　者：吉建华[1] 沈成彬[1] 吴琛[1] 范戈[1] 

机构地区：[1]上海交通大学区域光纤通信网与新型光通信系统国家重点实验室,上海200030

出　　处：《光子学报》2003年第5期539-541,共3页Acta Photonica Sinica

摘　　要：分析了一种非循环单重合码的色散效应 ,并将色散效应等效为功率衰减因子 ,得出同时考虑差拍噪声和色散后FFH OCDMA系统的误码率性能 结果表明 ,非循环单重合码的色散效应虽然比循环单重合码有所增加 ,但它大大降低了互相关干扰 ,也大大降低了差拍噪声 。The impact of chromatic dispersion of non-cyclic one-coincidence sequence is analyzed, and it is equivalent to an energy attenuation factor. Then, the BER performance of FFH-OCDMA is educed after considering the effect of optical beat interference and chromatic dispersion. Analysis results show that the BER performance of non-cyclic one-coincidence sequence is better than cyclic one-coincidence sequence

关 键 词：非循环单重合码 色散效应 功率衰减因子 FFH—OCDMA系统 误码率 差拍噪声 快跳频光码分多址 光通信 

分 类 号：TN929.1[电子电信—通信与信息系统]