Decision-Aided, Pilot-Aided, Decision-Feedback Phase Estimation for Coherent Optical OFDM Systems

被引：24

作者：

Cao, Shengjiao ^{[1
]}

Kam, Pooi Yuen ^{[1
]}

Yu, Changyuan ^{[1
,2
]}

机构：

[1] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore

[2] Agcy Sci Technol & Res, Inst Infocomm Res, Singapore 138632, Singapore

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2012年 / 24卷 / 22期

关键词：

Coherent; laser phase noise; orthogonal frequency-division multiplexing (OFDM); phase estimation; NOISE COMPENSATION; EQUALIZER;

D O I：

10.1109/LPT.2012.2219522

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We propose two phase estimation methods for coherent optical orthogonal frequency-division multiplexing (OFDM) systems, the decision-aided (DA) plus pilot-aided (PA) scheme and DA plus decision feedback (DF) scheme. We further investigate the combinations of DA, PA, and DF in a simulated 40-Gb/s single polarization system. DA + PA helps to increase the phase noise tolerance of DA and reduce the overhead of PA, while DA + DF reduces the overhead to zero and achieves the best performance with one more step of estimation, compensation, and demodulation.

引用

页码：2067 / 2069

页数：3

共 10 条

[1]

Cao S., 2011, P OECC, P425

[2]

Jasen S., P OFC 2007, P1

[3]

Kikuchi K., P OFC 2011, P1

[4] Zero-overhead phase noise compensation via decision-directed phase equalizer for coherent optical OFDM [J].

Mousa-Pasandi, Mohammad E. ;

Plant, David V. .

OPTICS EXPRESS, 2010, 18 (20) :20651-20660

[5] Data-aided adaptive weighted channel equalizer for coherent optical OFDM [J].

Mousa-Pasandi, Mohammad E. ;

Plant, David V. .

OPTICS EXPRESS, 2010, 18 (04) :3919-3927

[6] Analysis of RF-Pilot-Based Phase Noise Compensation for Coherent Optical OFDM Systems [J].

Randel, Sebastian ;

Adhikari, Susmita ;

Jansen, Sander L. .

IEEE PHOTONICS TECHNOLOGY LETTERS, 2010, 22 (17) :1288-1290

[7] Maximum-likelihood phase and channel estimation for coherent optical OFDM [J].

Shieh, W. .

IEEE PHOTONICS TECHNOLOGY LETTERS, 2008, 20 (5-8) :605-607

[8] Coherent optical OFDM: theory and design [J].

Shieh, W. ;

Bao, H. ;

Tang, Y. .

OPTICS EXPRESS, 2008, 16 (02) :841-859

[9] Phase estimation for coherent optical OFDM [J].

Yi, Xingwen ;

Shieh, William ;

Tang, Yan .

IEEE PHOTONICS TECHNOLOGY LETTERS, 2007, 19 (9-12) :919-921

[10] Decision-aided maximum likelihood detection in coherent optical phase-shift-keying system [J].

Zhang, S. ;

Kam, P. Y. ;

Chen, J. ;

Yu, C. .

OPTICS EXPRESS, 2009, 17 (02) :703-715

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