Novel pilot scheme for transmitter IQ mismatch compensation in CO-OFDM system

Jae Hoon Lee, Youngsun Ha, Beom Soo Shin, Sungchul Kim, Beop-Min Kim, Wonzoo Chung

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Transmitter in-phase and quadrature (Tx IQ) mismatch is one of the major obstacles preventing coherent optical orthogonal frequency division multiplexing systems from achieving high data rates. Several Tx IQ mismatch compensation methods at the receiver side have been proposed based on the mismatch estimation by the use of pilot signals. In this letter, we propose a novel pilot system for the Tx IQ mismatch estimation to improve the channel-estimation performance. The pilot scheme exploits the conjugate redundancy of the subcarrier mirror images due to the Tx IQ mismatch and allows the estimation of the Tx IQ mismatch factor and channel parameter independently. The advantages of the proposed algorithm are proved via mean square error analysis, and the bit error rate improvement is shown in simulations.

Original languageEnglish
Article number6236002
Pages (from-to)1543-1545
Number of pages3
JournalIEEE Photonics Technology Letters
Volume24
Issue number17
DOIs
Publication statusPublished - 2012 Aug 27

Fingerprint

Carbon Monoxide
transmitters
Orthogonal frequency division multiplexing
Transmitters
frequency division multiplexing
error analysis
redundancy
Channel estimation
bit error rate
quadratures
Mean square error
Bit error rate
Error analysis
Redundancy
Mirrors
receivers
mirrors
Compensation and Redress
simulation

Keywords

  • Coherent communication
  • in-phase and quadrature mismatch
  • optical orthogonal frequency division multiplexing

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials

Cite this

Novel pilot scheme for transmitter IQ mismatch compensation in CO-OFDM system. / Lee, Jae Hoon; Ha, Youngsun; Shin, Beom Soo; Kim, Sungchul; Kim, Beop-Min; Chung, Wonzoo.

In: IEEE Photonics Technology Letters, Vol. 24, No. 17, 6236002, 27.08.2012, p. 1543-1545.

Research output: Contribution to journalArticle

@article{2b925cc509b34a189e3014778e2fc555,
title = "Novel pilot scheme for transmitter IQ mismatch compensation in CO-OFDM system",
abstract = "Transmitter in-phase and quadrature (Tx IQ) mismatch is one of the major obstacles preventing coherent optical orthogonal frequency division multiplexing systems from achieving high data rates. Several Tx IQ mismatch compensation methods at the receiver side have been proposed based on the mismatch estimation by the use of pilot signals. In this letter, we propose a novel pilot system for the Tx IQ mismatch estimation to improve the channel-estimation performance. The pilot scheme exploits the conjugate redundancy of the subcarrier mirror images due to the Tx IQ mismatch and allows the estimation of the Tx IQ mismatch factor and channel parameter independently. The advantages of the proposed algorithm are proved via mean square error analysis, and the bit error rate improvement is shown in simulations.",
keywords = "Coherent communication, in-phase and quadrature mismatch, optical orthogonal frequency division multiplexing",
author = "Lee, {Jae Hoon} and Youngsun Ha and Shin, {Beom Soo} and Sungchul Kim and Beop-Min Kim and Wonzoo Chung",
year = "2012",
month = "8",
day = "27",
doi = "10.1109/LPT.2012.2207714",
language = "English",
volume = "24",
pages = "1543--1545",
journal = "IEEE Photonics Technology Letters",
issn = "1041-1135",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "17",

}

TY - JOUR

T1 - Novel pilot scheme for transmitter IQ mismatch compensation in CO-OFDM system

AU - Lee, Jae Hoon

AU - Ha, Youngsun

AU - Shin, Beom Soo

AU - Kim, Sungchul

AU - Kim, Beop-Min

AU - Chung, Wonzoo

PY - 2012/8/27

Y1 - 2012/8/27

N2 - Transmitter in-phase and quadrature (Tx IQ) mismatch is one of the major obstacles preventing coherent optical orthogonal frequency division multiplexing systems from achieving high data rates. Several Tx IQ mismatch compensation methods at the receiver side have been proposed based on the mismatch estimation by the use of pilot signals. In this letter, we propose a novel pilot system for the Tx IQ mismatch estimation to improve the channel-estimation performance. The pilot scheme exploits the conjugate redundancy of the subcarrier mirror images due to the Tx IQ mismatch and allows the estimation of the Tx IQ mismatch factor and channel parameter independently. The advantages of the proposed algorithm are proved via mean square error analysis, and the bit error rate improvement is shown in simulations.

AB - Transmitter in-phase and quadrature (Tx IQ) mismatch is one of the major obstacles preventing coherent optical orthogonal frequency division multiplexing systems from achieving high data rates. Several Tx IQ mismatch compensation methods at the receiver side have been proposed based on the mismatch estimation by the use of pilot signals. In this letter, we propose a novel pilot system for the Tx IQ mismatch estimation to improve the channel-estimation performance. The pilot scheme exploits the conjugate redundancy of the subcarrier mirror images due to the Tx IQ mismatch and allows the estimation of the Tx IQ mismatch factor and channel parameter independently. The advantages of the proposed algorithm are proved via mean square error analysis, and the bit error rate improvement is shown in simulations.

KW - Coherent communication

KW - in-phase and quadrature mismatch

KW - optical orthogonal frequency division multiplexing

UR - http://www.scopus.com/inward/record.url?scp=84865254373&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84865254373&partnerID=8YFLogxK

U2 - 10.1109/LPT.2012.2207714

DO - 10.1109/LPT.2012.2207714

M3 - Article

AN - SCOPUS:84865254373

VL - 24

SP - 1543

EP - 1545

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

SN - 1041-1135

IS - 17

M1 - 6236002

ER -