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Constellation basis decomposition based blind equalization processing of four-dimensional modulation

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Abstract

Blind equalization processing of four-dimensional (4D) signal is a key factor to 4D modulation based system, in order to solve this problem, we propose “constellation basis” decomposition based blind equalization processing scheme for (4D) modulation format. A 4D modulation based optical OFDM system is simulated to verify the performance of “constellation basis” decomposition scheme. Compared to the data aided equalization with least mean square algorithm, the proposed scheme shows a better performance in the case of 4D modulation format. And it is also demonstrated that the proposed scheme can simultaneously realize blind equalization compensation for system or channel impairments including chromatic dispersion, phase noise, I/Q imbalance, etc. Meanwhile, it allows for flexible spectrum efficiency transmission.

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Acknowledgements

This work was supported in part by the National Natural Science Foundation of China under Grant 61177066 and 61575078, Jilin Provincial Science and Technology Department under Grant 20140203009GX and Jilin Province Development and Reform Commission under Grant 2014Y087.

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Authors and Affiliations

  1. College of Communication Engineering, Jilin University, 5372 Nanhu Road, Changchun, 130012, People’s Republic of China

    Zhaoxi Li, Yujuan Si & Guijun Hu

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  1. Zhaoxi Li
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  2. Yujuan Si
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  3. Guijun Hu
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Correspondence to Guijun Hu.

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Li, Z., Si, Y. & Hu, G. Constellation basis decomposition based blind equalization processing of four-dimensional modulation. Opt Quant Electron 49, 357 (2017). https://doi.org/10.1007/s11082-017-1184-3

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  • DOI: https://doi.org/10.1007/s11082-017-1184-3

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