Decision-aided carrier phase estimation with selective averaging for low-cost optical coherent communication

Dezhao Huang; Tee Hiang Cheng; Changyuan Yu

doi:10.1109/ICICS.2013.6782823

Decision-aided carrier phase estimation with selective averaging for low-cost optical coherent communication

Dezhao Huang, Tee Hiang Cheng, Changyuan Yu

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

8 Citations (Scopus)

Abstract

Digital carrier phase estimation (CPE) is used in coherent optical receiver to estimate and track carrier phase. The carrier phase estimated from a single symbol is corrupted by noise; hence, it is necessary for CPE to average a block of symbols to mitigate the noise effect. Symbols with significant noise in the averaging block can severely distort the overall phase estimation, especially when the averaging block is small. We propose a selective averaging (SA) method to identify those symbols with significantly large noise and exclude them in the phase averaging process of CPE. We apply our proposed SA technique to the decision-aided maximum likelihood (DAML) CPE and demonstrate via Monte Carlo simulation and experimental results that the modified DA-ML has better optical signal-to-noise ratio (OSNR) performance compared to the conventional DAML in large laser linewidth and medium to high OSNR region.

Original language	English
Title of host publication	ICICS 2013 - Conference Guide of the 9th International Conference on Information, Communications and Signal Processing
Publisher	IEEE Computer Society
DOIs	https://doi.org/10.1109/ICICS.2013.6782823
Publication status	Published - 1 Jan 2013
Externally published	Yes
Event	9th International Conference on Information, Communications and Signal Processing, ICICS 2013 - Tainan, Taiwan Duration: 10 Dec 2013 → 13 Dec 2013

Conference

Conference	9th International Conference on Information, Communications and Signal Processing, ICICS 2013
Country/Territory	Taiwan
City	Tainan
Period	10/12/13 → 13/12/13

Keywords

Carrier phase estimation
Coherent optical communication
Digital signal processing
Selective averaging

ASJC Scopus subject areas

Computer Networks and Communications
Information Systems
Signal Processing

More information

10.1109/ICICS.2013.6782823

Cite this

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abstract = "Digital carrier phase estimation (CPE) is used in coherent optical receiver to estimate and track carrier phase. The carrier phase estimated from a single symbol is corrupted by noise; hence, it is necessary for CPE to average a block of symbols to mitigate the noise effect. Symbols with significant noise in the averaging block can severely distort the overall phase estimation, especially when the averaging block is small. We propose a selective averaging (SA) method to identify those symbols with significantly large noise and exclude them in the phase averaging process of CPE. We apply our proposed SA technique to the decision-aided maximum likelihood (DAML) CPE and demonstrate via Monte Carlo simulation and experimental results that the modified DA-ML has better optical signal-to-noise ratio (OSNR) performance compared to the conventional DAML in large laser linewidth and medium to high OSNR region.",

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author = "Dezhao Huang and Cheng, {Tee Hiang} and Changyuan Yu",

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doi = "10.1109/ICICS.2013.6782823",

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Huang, D, Cheng, TH & Yu, C 2013, Decision-aided carrier phase estimation with selective averaging for low-cost optical coherent communication. in ICICS 2013 - Conference Guide of the 9th International Conference on Information, Communications and Signal Processing., 6782823, IEEE Computer Society, 9th International Conference on Information, Communications and Signal Processing, ICICS 2013, Tainan, Taiwan, 10/12/13. https://doi.org/10.1109/ICICS.2013.6782823

Decision-aided carrier phase estimation with selective averaging for low-cost optical coherent communication. / Huang, Dezhao; Cheng, Tee Hiang; Yu, Changyuan.
ICICS 2013 - Conference Guide of the 9th International Conference on Information, Communications and Signal Processing. IEEE Computer Society, 2013. 6782823.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

TY - GEN

T1 - Decision-aided carrier phase estimation with selective averaging for low-cost optical coherent communication

AU - Huang, Dezhao

AU - Cheng, Tee Hiang

AU - Yu, Changyuan

PY - 2013/1/1

Y1 - 2013/1/1

N2 - Digital carrier phase estimation (CPE) is used in coherent optical receiver to estimate and track carrier phase. The carrier phase estimated from a single symbol is corrupted by noise; hence, it is necessary for CPE to average a block of symbols to mitigate the noise effect. Symbols with significant noise in the averaging block can severely distort the overall phase estimation, especially when the averaging block is small. We propose a selective averaging (SA) method to identify those symbols with significantly large noise and exclude them in the phase averaging process of CPE. We apply our proposed SA technique to the decision-aided maximum likelihood (DAML) CPE and demonstrate via Monte Carlo simulation and experimental results that the modified DA-ML has better optical signal-to-noise ratio (OSNR) performance compared to the conventional DAML in large laser linewidth and medium to high OSNR region.

AB - Digital carrier phase estimation (CPE) is used in coherent optical receiver to estimate and track carrier phase. The carrier phase estimated from a single symbol is corrupted by noise; hence, it is necessary for CPE to average a block of symbols to mitigate the noise effect. Symbols with significant noise in the averaging block can severely distort the overall phase estimation, especially when the averaging block is small. We propose a selective averaging (SA) method to identify those symbols with significantly large noise and exclude them in the phase averaging process of CPE. We apply our proposed SA technique to the decision-aided maximum likelihood (DAML) CPE and demonstrate via Monte Carlo simulation and experimental results that the modified DA-ML has better optical signal-to-noise ratio (OSNR) performance compared to the conventional DAML in large laser linewidth and medium to high OSNR region.

KW - Carrier phase estimation

KW - Coherent optical communication

KW - Digital signal processing

KW - Selective averaging

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M3 - Conference article published in proceeding or book

BT - ICICS 2013 - Conference Guide of the 9th International Conference on Information, Communications and Signal Processing

PB - IEEE Computer Society

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Decision-aided carrier phase estimation with selective averaging for low-cost optical coherent communication

Abstract

Conference

Keywords

ASJC Scopus subject areas

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