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Entropy 2016, 18(1), 30; doi:10.3390/e18010030

Using Multidimensional ADTPE and SVM for Optical Modulation Real-Time Recognition

College of Mechatronics Engineering and Automation, National University of Defense Technology, Deya Road, Changsha 410073, China
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Academic Editor: Andreas Holzinger
Received: 26 November 2015 / Revised: 6 January 2016 / Accepted: 11 January 2016 / Published: 16 January 2016
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Abstract

Based on the feature extraction of multidimensional asynchronous delay-tap plot entropy (ADTPE) and multiclass classification of support vector machine (SVM), we propose a method for recognition of multiple optical modulation formats and various data rates. We firstly present the algorithm of multidimensional ADTPE, which is extracted from asynchronous delay sampling pairs of modulated optical signal. Then, a multiclass SVM is utilized for fast and accurate classification of several widely-used optical modulation formats. In addition, a simple real-time recognition scheme is designed to reduce the computation time. Compared to the existing method based on asynchronous delay-tap plot (ADTP), the theoretical analysis and simulation results show that our recognition method can effectively enhance the tolerance of transmission impairments, obtaining relatively high accuracy. Finally, it is further demonstrated that the proposed method can be integrated in an optical transport network (OTN) with flexible expansion. Through simply adding the corresponding sub-SVM module in the digital signal processer (DSP), arbitrary new modulation formats can be recognized with high recognition accuracy in a short response time. View Full-Text
Keywords: optical modulation recognition; multidimensional ADTPE; SVM; real time optical modulation recognition; multidimensional ADTPE; SVM; real time
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Wei, J.; Huang, Z.; Su, S.; Zuo, Z. Using Multidimensional ADTPE and SVM for Optical Modulation Real-Time Recognition. Entropy 2016, 18, 30.

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