IQ imbalance compensation and phase noise estimation for coherent optical OFDM communication systems

Cao Shengjiao; KAM Pooi-Yuen; Yu Changyuan

doi:10.13756/j.gtxyj.2012.06.007

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IQ imbalance compensation and phase noise estimation for coherent optical OFDM communication systems

- IQ imbalance compensation and phase noise estimation for coherent optical OFDM communication systems
- Study on Optical communication Issue 6, Pages: 10-12(2012)
- 作者机构：
  
  新加坡国立大学电子与计算机工程系
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2012.06.007
  CLC： TN919.3
- Published：2012，
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[1]曹圣皎,甘培润,余长源.相干光OFDM通信系统中的IQ补偿和相位估计[J].光通信研究,2012(06):10-12+38.

Cao Shengjiao, KAM Pooi-Yuen, Yu Changyuan. IQ imbalance compensation and phase noise estimation for coherent optical OFDM communication systems. [J]. (6):10-12(2012)
[1]曹圣皎,甘培润,余长源.相干光OFDM通信系统中的IQ补偿和相位估计[J].光通信研究,2012(06):10-12+38. DOI： 10.13756/j.gtxyj.2012.06.007.

Cao Shengjiao, KAM Pooi-Yuen, Yu Changyuan. IQ imbalance compensation and phase noise estimation for coherent optical OFDM communication systems. [J]. (6):10-12(2012) DOI： 10.13756/j.gtxyj.2012.06.007.

摘要

文章首先研究了相干光OFDM（正交频分复用）通信系统中的线性损耗

包括IQ（同相/正交相）不平衡以及线性相位噪声;提出了一种DA（基于决策）的不需要周期性地插入训练数据的方法。计算机仿真结果表明

所提出的方法可以有效估计并补偿这两类线性损耗;在此基础上

提出了一种在考虑信道色散噪声的情况下

联合补偿IQ不平衡和线性相位噪声的新算法。

Abstract

In this paper

the linear impairments of Coherent Optical Orthogonal Frequency-Division-Multiplexed（CO-OFDM） communication systems

including IQ imbalance and linear phase noise

are studied and a decision-aided compensation method without the need of periodic pilots proposed.Simulation results show that the proposed technique can effectively estimate and compensate these two linear losses.On this basis

a novel scheme is presented for joint compensation of IQ imbalance and phase noise in the presence of channel distortion.

关键词

正交频分复用同相/正交相不平衡相位噪声基于决策

Keywords

OFDMIQ imbalancephase noisedecision-aided

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