Performance analysis of OCDMA systems with modified PIC technique

Fan Hongxia; Pan Wei; Luo Bin

doi:10.13756/j.gtxyj.2008.03.014

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Performance analysis of OCDMA systems with modified PIC technique

- Performance analysis of OCDMA systems with modified PIC technique
- Study on Optical communication Issue 3, Pages: 7-9(2008)
- 作者机构：
  
  1. 西南交通大学信息科学与技术学院
  2. 西南交通大学信息科学与技术学院四川成都610031
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2008.03.014
  CLC： TN929.533
- Published：2008，
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[1]范红霞,潘炜,罗斌.采用改进的PIC技术的OCDMA系统性能分析[J].光通信研究,2008(03):7-9.

Fan Hongxia, Pan Wei, Luo Bin. Performance analysis of OCDMA systems with modified PIC technique. [J]. (3):7-9(2008)
[1]范红霞,潘炜,罗斌.采用改进的PIC技术的OCDMA系统性能分析[J].光通信研究,2008(03):7-9. DOI： 10.13756/j.gtxyj.2008.03.014.

Fan Hongxia, Pan Wei, Luo Bin. Performance analysis of OCDMA systems with modified PIC technique. [J]. (3):7-9(2008) DOI： 10.13756/j.gtxyj.2008.03.014.

摘要

文章提出改进的并行干扰消除（PIC）技术来减少多址干扰对光码分多址（OCDMA）系统性能的影响。以光正交码（OOC）为地址码

推导出改进的PIC技术的系统误码率表达式。通过仿真分析给出了误码率与OOC的码长、码重和并发用户数的关系。结果表明

采用改进的PIC技术

能大大降低OCDMA系统的误码率

改善系统性能

且系统满足误码率≤10-9时所需的最小OOC码长远远小于PIC所需的最小OOC码长。

Abstract

A modified Parallel Interference Cancellation （PIC） technology is proposed to reduce the effect of multiple access interferences on the performance of the Optical Code Division Multiple Access（OCDMA） communication system.The expression of its Bit Error Rate（BER） is derived with OOC as the signature sequence code.The relationship between BER and the code length of OOC and between the code weight and the number of the active users are given according to the simulation and analysis.The results show that the system BER can be greatly reduced

the system performance improved and the minimal code length required for the system to satisfy BER≤10-9 is much shorter by using the modified PIC technology than by using the conventional PIC technology.

关键词

光码分多址多址干扰并行干扰消除

Keywords

OCDMAmultiple access interferenceparallel interference cancellation

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College of Mechanical and Electrical Engineering,Jiaozuo University

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College of Electronic Engineering,Guangxi Normal University

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