| 基于修正素数码的双OHL同步OCDMA性能分析 |
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| 引用本文： | 丁莹,潘炜,罗斌,周殊. 基于修正素数码的双OHL同步OCDMA性能分析[J]. 光通信研究, 2007, 33(5): 27-29 |
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| 作者姓名： | 丁莹 潘炜 罗斌 周殊 |
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| 作者单位： | 西南交通大学,信息科学与技术学院,四川,成都,610031 |
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| 基金项目： | 国家自然科学基金 , 教育部科学技术研究重点项目 , 四川省应用基础科学研究计划项目 , 教育部高等学校博士学科点专项科研基金 |
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| 摘 要： | 基于单硬限幅器(OHL)的同步光码分多址 (OCDMA) 系统不能完全消除信道串扰,引入了双OHL结构来优化系统传输性能.文章给出地址码的码重、光谱强度、用户数与误码率及同异步系统归一化吞吐量间的关系,结果表明:在用户数与地址码重相差较大的情况下,双OHL同步OCDMA系统误码率下降明显且比异步系统的归一化吞吐量大.
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| 关 键 词： | 光码分多址系统 同步 素数码 硬限幅器 误码率 |
| 文章编号： | 1005-8788（2007）05-0027-03 |
| 收稿时间： | 2007-05-30 |
| 修稿时间： | 2007-05-30 |
Performance analysis of modified prime sequence code-based synchronous OCDMA systems with double optical hard-limiter |
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| Ding Ying,Pan Wei,Luo Bin,Zhou Shu. Performance analysis of modified prime sequence code-based synchronous OCDMA systems with double optical hard-limiter[J]. Study on Optical Communications, 2007, 33(5): 27-29 |
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| Authors: | Ding Ying Pan Wei Luo Bin Zhou Shu |
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| Abstract: | As single Optical Hard Limiter(OHL)-based synchronous OCDMA system cannot be entirely immune from channel crosstalk,double OHL structure is introduced to optimize the system transmission performance.This paper presents the relationship between the code weight of address code,spectrum intensity,number of users and the bit error probability and that between the normalized throughputs of the synchronous and asynchronous systems.The results show that when the number of users is quite different from the address code weight,the bit error probability of the double OHL-based synchronous OCDMA system remarkably drops and produces higher normalized throughput than the asynchronous system. |
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| Keywords: | OCDMA systems synchronous prime sequence OHL bit error probability |
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