Time-domain blind ICI mitigation for non-constant modulus format in CO-OFDM

Shengjiao Cao; Pooi Yuen Kam; Changyuan Yu

doi:10.1109/LPT.2013.2288357

Time-domain blind ICI mitigation for non-constant modulus format in CO-OFDM

Shengjiao Cao, Pooi Yuen Kam, Changyuan Yu

Research output: Journal article publication › Journal article › Academic research › peer-review

25 Citations (Scopus)

Abstract

In this letter, we propose a modified time-domain blind intercarrier interference (ICI) mitigation method for non-constant modulus format (e.g., 16-QAM) in coherent optical orthogonal frequency division multiplexing (CO-OFDM) systems. The new algorithm is derived from a blind ICI (BL-ICI) compensation algorithm over constant modulus format for wireless networks. We proposed new power estimation methods for the algorithm to adapt to non-constant modulus format. Our new BL-ICI algorithm is demonstrated to be effective in removing the ICI in a simulated CO-OFDM system over various formats: 8-QAM, 16-QAM, 32-QAM and 64-QAM. It shares the same order of complexity with frequency domain decision-aided ICI compensation method and does not suffer from symbol decision errors.

Original language	English
Article number	6654266
Pages (from-to)	2490-2493
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	25
Issue number	24
DOIs	https://doi.org/10.1109/LPT.2013.2288357
Publication status	Published - 15 Dec 2013
Externally published	Yes

Keywords

CO-OFDM
ICI
laser phase noise
phase estimation
QAM

ASJC Scopus subject areas

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

More information

10.1109/LPT.2013.2288357

Cite this

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title = "Time-domain blind ICI mitigation for non-constant modulus format in CO-OFDM",

abstract = "In this letter, we propose a modified time-domain blind intercarrier interference (ICI) mitigation method for non-constant modulus format (e.g., 16-QAM) in coherent optical orthogonal frequency division multiplexing (CO-OFDM) systems. The new algorithm is derived from a blind ICI (BL-ICI) compensation algorithm over constant modulus format for wireless networks. We proposed new power estimation methods for the algorithm to adapt to non-constant modulus format. Our new BL-ICI algorithm is demonstrated to be effective in removing the ICI in a simulated CO-OFDM system over various formats: 8-QAM, 16-QAM, 32-QAM and 64-QAM. It shares the same order of complexity with frequency domain decision-aided ICI compensation method and does not suffer from symbol decision errors.",

keywords = "CO-OFDM, ICI, laser phase noise, phase estimation, QAM",

author = "Shengjiao Cao and Kam, {Pooi Yuen} and Changyuan Yu",

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AU - Cao, Shengjiao

AU - Kam, Pooi Yuen

AU - Yu, Changyuan

PY - 2013/12/15

Y1 - 2013/12/15

N2 - In this letter, we propose a modified time-domain blind intercarrier interference (ICI) mitigation method for non-constant modulus format (e.g., 16-QAM) in coherent optical orthogonal frequency division multiplexing (CO-OFDM) systems. The new algorithm is derived from a blind ICI (BL-ICI) compensation algorithm over constant modulus format for wireless networks. We proposed new power estimation methods for the algorithm to adapt to non-constant modulus format. Our new BL-ICI algorithm is demonstrated to be effective in removing the ICI in a simulated CO-OFDM system over various formats: 8-QAM, 16-QAM, 32-QAM and 64-QAM. It shares the same order of complexity with frequency domain decision-aided ICI compensation method and does not suffer from symbol decision errors.

AB - In this letter, we propose a modified time-domain blind intercarrier interference (ICI) mitigation method for non-constant modulus format (e.g., 16-QAM) in coherent optical orthogonal frequency division multiplexing (CO-OFDM) systems. The new algorithm is derived from a blind ICI (BL-ICI) compensation algorithm over constant modulus format for wireless networks. We proposed new power estimation methods for the algorithm to adapt to non-constant modulus format. Our new BL-ICI algorithm is demonstrated to be effective in removing the ICI in a simulated CO-OFDM system over various formats: 8-QAM, 16-QAM, 32-QAM and 64-QAM. It shares the same order of complexity with frequency domain decision-aided ICI compensation method and does not suffer from symbol decision errors.

KW - CO-OFDM

KW - ICI

KW - laser phase noise

KW - phase estimation

KW - QAM

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DO - 10.1109/LPT.2013.2288357

M3 - Journal article

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JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

SN - 1041-1135

IS - 24

M1 - 6654266

ER -

Time-domain blind ICI mitigation for non-constant modulus format in CO-OFDM

Abstract

Keywords

ASJC Scopus subject areas

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