| 谭业腾,蒲涛,郑吉林,周华.地址码互相关特性对光码分多址系统性能的影响研究[J].光电子激光,2020,31(4):441~446 |
| 地址码互相关特性对光码分多址系统性能的影响研究 |
| Research on effect of cross-correlation characteristics of address codes on pe rformances of OCDMA systems |
| 投稿时间：2019-04-14 |
| DOI： |
| 中文关键词: 光通信系统 码分多址 窃听攻击 安全性分析 系统参数 |
| 英文关键词:optical communication system code division multiple access (CDMA) wiretapping attacks security analysis system parameters |
| 基金项目:国家自然科学基金(61673393,61974165) (陆军工程大学 通信工程学院,南京 210007) |
|
| 摘要点击次数: 760 |
| 全文下载次数: 0 |
| 中文摘要: |
| 基于Wyner窃听信道模型,建立了光码分多址系 统(OCDMA)的窃听信道模型,并利用“信道容量”和“安全泄露因子”作为指标来定量地 评估系统的传输性能和安全性。基于此 ,本文分析了地址码的互相关特性对OCDMA系统性能的影响。结果表明:地址码的互相关特 性对OCDMA系统性能有着重要的影响,采用互相关性更好的地址码能够提高系统的传输性能 和安全性；增加 地址码的码字长度以及使用二维地址码或者双极性地址码都有利于改善系统的传输性能和安全性。 |
| 英文摘要: |
| Based on Wyner′s wiretap channel,the wiretap channel model of Optica l code division multiple access (OCDMA) systems is established,and “channel ca pacity” and “security leakage factor” are used as indicators to estimate the transmission performance and security of the systems quantificationally.The imp acts of cross-correlation characteristics of address codes on the performances o f OCDMA systems are studied in the paper.Our results indicate that the cross-c o rrelation characteristics of address codes play an important role in the perform ances of OCDMA systems,and using the address codes which have better cross-cor r elation characteristics can improve the transmission performance and security; i ncreasing the code length,using the 2-D address codes or the bipolar address c odes can both improve the transmission performance and security of OCDMA system. |
| 查看全文 下载PDF阅读器 |
| 关闭 |
|
|
|
|
|