Phase Noise Compensation for Nonlinearity-Tolerant Digital Subcarrier Systems With High-Order QAM
The fundamental penalty of subcarrier modulation (SCM) with independent subcarrier phase noise processing is estimated. It is shown that the fundamental signal-to-noise ratio (SNR) penalty related to poorer phase noise tolerance of decreased baudrate subcarriers increases significantly with modulati...
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IEEE
2017-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/8013014/ |
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| author | M. P. Yankov L. Barletta D. Zibar |
| author_facet | M. P. Yankov L. Barletta D. Zibar |
| author_sort | M. P. Yankov |
| collection | DOAJ |
| description | The fundamental penalty of subcarrier modulation (SCM) with independent subcarrier phase noise processing is estimated. It is shown that the fundamental signal-to-noise ratio (SNR) penalty related to poorer phase noise tolerance of decreased baudrate subcarriers increases significantly with modulation format size and can potentially exceed the gains of the nonlinear tolerance of SCM. A low-complexity algorithm is proposed for joint subcarrier phase noise processing, which is scalable in the number of subcarriers and recovers almost entirely the fundamental SNR penalty with respect to single-carrier systems operating at the same net data-rate. The proposed algorithm enables high-order modulation formats with high count of subcarriers to be safely employed for nonlinearity mitigation in optical communication systems. |
| format | Article |
| id | doaj-art-6ef7c067db3e4725b4ca8ba6984ff761 |
| institution | DOAJ |
| issn | 1943-0655 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-6ef7c067db3e4725b4ca8ba6984ff7612025-08-20T03:15:14ZengIEEEIEEE Photonics Journal1943-06552017-01-019511210.1109/JPHOT.2017.27409838013014Phase Noise Compensation for Nonlinearity-Tolerant Digital Subcarrier Systems With High-Order QAMM. P. Yankov0L. Barletta1D. Zibar2Department of Photonics Engineering, Technical University of Denmark, Kgs. Lyngby, DenmarkDepartment of Photonics Engineering, Technical University of Denmark, Kgs. Lyngby, DenmarkDepartment of Photonics Engineering, Technical University of Denmark, Kgs. Lyngby, DenmarkThe fundamental penalty of subcarrier modulation (SCM) with independent subcarrier phase noise processing is estimated. It is shown that the fundamental signal-to-noise ratio (SNR) penalty related to poorer phase noise tolerance of decreased baudrate subcarriers increases significantly with modulation format size and can potentially exceed the gains of the nonlinear tolerance of SCM. A low-complexity algorithm is proposed for joint subcarrier phase noise processing, which is scalable in the number of subcarriers and recovers almost entirely the fundamental SNR penalty with respect to single-carrier systems operating at the same net data-rate. The proposed algorithm enables high-order modulation formats with high count of subcarriers to be safely employed for nonlinearity mitigation in optical communication systems.https://ieeexplore.ieee.org/document/8013014/Multicarrierjoint processingphase noisesubcarrier multiplexingWDM |
| spellingShingle | M. P. Yankov L. Barletta D. Zibar Phase Noise Compensation for Nonlinearity-Tolerant Digital Subcarrier Systems With High-Order QAM IEEE Photonics Journal Multicarrier joint processing phase noise subcarrier multiplexing WDM |
| title | Phase Noise Compensation for Nonlinearity-Tolerant Digital Subcarrier Systems With High-Order QAM |
| title_full | Phase Noise Compensation for Nonlinearity-Tolerant Digital Subcarrier Systems With High-Order QAM |
| title_fullStr | Phase Noise Compensation for Nonlinearity-Tolerant Digital Subcarrier Systems With High-Order QAM |
| title_full_unstemmed | Phase Noise Compensation for Nonlinearity-Tolerant Digital Subcarrier Systems With High-Order QAM |
| title_short | Phase Noise Compensation for Nonlinearity-Tolerant Digital Subcarrier Systems With High-Order QAM |
| title_sort | phase noise compensation for nonlinearity tolerant digital subcarrier systems with high order qam |
| topic | Multicarrier joint processing phase noise subcarrier multiplexing WDM |
| url | https://ieeexplore.ieee.org/document/8013014/ |
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