摘要
对双极性光码分多址(OCDMA)系统采用码的单/双极性转换思路,将相关性能更优秀的双极性码应用于传统单极性OCDMA信道中,提出了一种采用双极性完全互补序列的OCDMA编解码方案及系统模型。仿真结果表明,完全互补的OCDMA系统与基于Gold序列的OCDMA系统性能相比有较大的优势。采用完全互补序列作为地址码,可以有效降低OCDMA系统中的多址干扰,提高通信质量。
In the bipolar OCDMA system, bipolar codes with better correlation properties are used in the conventional unipolar OCDMA channels in light of the unipolar-bipolar code transformation. A bipolar complete complementary sequence-based OCDMA system coding/decoding method and system model are proposed. The simulation results show that it has much better system properties than the Gold sequence-based OCDMA system and that using complete complementary sequences as the address codes, the MAI in the OCDMA system can be effectively reduced and the communication quality improved.
出处
《光通信研究》
北大核心
2008年第3期10-13,共4页
Study on Optical Communications
基金
国家自然科学基金资助项目(60502016)
天津市高等学校科技发展基金重点项目(2006ZH91)
