Performances of chaotic sequence-based optical CDMA systems

Liu Xiaolei; Zhao Feng; Zhang Zhongwei; Wang Liguo

doi:10.13756/j.gtxyj.2015.04.021

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Performances of chaotic sequence-based optical CDMA systems

- Performances of chaotic sequence-based optical CDMA systems
- Study on Optical communication Issue 4, Pages: 65-67(2015)
- 作者机构：
  
  1. 河南理工大学电气工程与自动化学院
  2. 焦作大学机电工程学院
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2015.04.021
  CLC： TN929.11
- Published：2015，
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[1]刘小磊,赵锋,张中卫,王立国.混沌序列OCDMA系统性能分析[J].光通信研究,2015(04):65-67.

Liu Xiaolei, Zhao Feng, Zhang Zhongwei, et al. Performances of chaotic sequence-based optical CDMA systems. [J]. (4):65-67(2015)
[1]刘小磊,赵锋,张中卫,王立国.混沌序列OCDMA系统性能分析[J].光通信研究,2015(04):65-67. DOI： 10.13756/j.gtxyj.2015.04.021.

Liu Xiaolei, Zhao Feng, Zhang Zhongwei, et al. Performances of chaotic sequence-based optical CDMA systems. [J]. (4):65-67(2015) DOI： 10.13756/j.gtxyj.2015.04.021.

摘要

介绍了一种可以使用双极性序列的单极性信道OCDMA（光码分多址）系统

阐述了利用三阶Chebyshev映射构造具有良好相关性的双极性混沌序列的方法

并将双极性混沌序列应用到上述单极性信道OCDMA系统中。对系统性能进行了分析

在完全异步的情况下

推导了信噪比和误码率的表达式

仿真了误码率随用户数变化的曲线

与使用Gold序列的相同系统进行了比较

结果表明:在相同用户数的情况下

使用混沌序列时具有较低的误码率。

Abstract

In this paper

a unipolar channel-based OCDMA system that can use bipolar sequences is introduced and a method for constructing bipolar chaotic sequences with good correlation property by using the 3rd-order Chebyshev mapping described.With the bipolar chaotic sequences applied to the above-mentioned OCDMA system

its performance is analyzed.Under the condition of complete asynchronization

the expressions for SNR and BER are derived and the BER curves varying with the number of users simulated and compared with the similar systems based on the Gold sequences.The results indicate that with the same number of users

those systems that are based on the chaotic sequences have lower BER.

关键词

光纤通信技术光码分多址Chebyshev映射混沌序列

Keywords

fiber-optic communication technologyOCDMAChebyshev mappingchaotic sequence

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Related Institution

Key Laboratory of Optical Communication & Lightwave Technology,Ministry of Education,School of Electronic Engineering,Beijing University of Posts and Telecommunications

Institute of MOEMS,Chongqing University of Posts and Telecommunications

Institute of Information Optics,Zhejiang Normal University

College of Electronic Engineering,Guangxi Normal University

College of Mathematics and Physics,Nanjing University of Information Science and Technology

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