摘要
提出了一种新型OCDMA多维码构造方案。该多维码是在一维EPC(扩展的素数码)时域码的基础上,对其进行PC(素数码)跳频编码,并加上了偏振信息。然后通过偏振片和FBG(布拉格光线光栅)实现这种码的编解码,详述了其特点,最后描述了使用该地址码进行信息传输的OCDMA系统结构。计算表明该新型地址码具有更大的容量,能容纳更多的用户同时通信。
A new coding scheme for the address codes of OCDMA was proposed. This type of multidimension codes were constructed by adding polarization on a type of two-dimension codes which were formed by time spreading with EPC and frequency-hopping with PC. Polarimeters and FBGs were used in the en-/decoding technology and the relevant traits were also analyzed. Finally, the structure tof this OCDMA system was described. The calculations showed that this type of address codes had a higher code capacity and could contain more users in communication simultaneously.
出处
《光学与光电技术》
2005年第5期19-21,共3页
Optics & Optoelectronic Technology
基金
西南交通大学科学研究基金项目(2004B10)
