Performance Optimization by Nonparametric Histogram Estimation for Low Resolution in IMDD-OQAM-OFDM System
In this paper, for the first time, we propose a nonparametric histogram estimation (NPHE) scheme for the nonuniform quantization in intensity modulated direct detection with filter bank multicarrier signal to improve system performance. By combining the NPHE scheme and the common nonlinear programmi...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2018-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8387444/ |
| _version_ | 1831804672299499520 |
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| author | Meihua Bi Tiancheng Huang Ling Liu Xin Miao Shilin Xiao Weisheng Hu |
| author_facet | Meihua Bi Tiancheng Huang Ling Liu Xin Miao Shilin Xiao Weisheng Hu |
| author_sort | Meihua Bi |
| collection | DOAJ |
| description | In this paper, for the first time, we propose a nonparametric histogram estimation (NPHE) scheme for the nonuniform quantization in intensity modulated direct detection with filter bank multicarrier signal to improve system performance. By combining the NPHE scheme and the common nonlinear programming method, the distribution of offset quadrature amplitude modulation based optical orthogonal frequency division multiplexing (OQAM-OFDM) signal is accurately estimated and then it is used to achieve the optimal nonuniform quantization level. In this way, the low-level signal can achieve much more effective digitalizing bits, thereby significantly reducing the quantization noise. The numerical simulation and experiment with 10-Gb/s 16-order OQAM-OFDM signal over 20 km fiber are conducted to further verify the feasibility of our scheme. The results show that our scheme always outperforms the uniform quantization and Gaussian-like nonuniform schemes in terms of the signal to quantization noise ratio, error-vector-magnitudes, and bit error rate. Compared to the conventional method, our scheme also achieves received sensitivity improvement thereby improving the system power budget. So, it can support the low-bit resolution transmission in intensity modulated direct detection-based OQAM-OFDM system. |
| first_indexed | 2024-12-22T19:11:28Z |
| format | Article |
| id | doaj.art-1557e9a75fdb4e5eb4ad4712b3ac7cad |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-22T19:11:28Z |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-1557e9a75fdb4e5eb4ad4712b3ac7cad2022-12-21T18:15:39ZengIEEEIEEE Photonics Journal1943-06552018-01-0110411310.1109/JPHOT.2018.28482488387444Performance Optimization by Nonparametric Histogram Estimation for Low Resolution in IMDD-OQAM-OFDM SystemMeihua Bi0https://orcid.org/0000-0001-8177-1808Tiancheng Huang1https://orcid.org/0000-0001-8159-4987Ling Liu2https://orcid.org/0000-0002-9936-5100Xin Miao3https://orcid.org/0000-0001-5998-0013Shilin Xiao4https://orcid.org/0000-0003-0887-782XWeisheng Hu5https://orcid.org/0000-0002-6168-2688School of Communication Engineering, Hangzhou Dianzi University, Hangzhou, ChinaDepartment of Electronic Engineering, State Key Laboratory of Advanced Optical Communication System and Networks, Shanghai Jiao Tong University, Shanghai, ChinaDepartment of Electronic Engineering, State Key Laboratory of Advanced Optical Communication System and Networks, Shanghai Jiao Tong University, Shanghai, ChinaDepartment of Electronic Engineering, State Key Laboratory of Advanced Optical Communication System and Networks, Shanghai Jiao Tong University, Shanghai, ChinaDepartment of Electronic Engineering, State Key Laboratory of Advanced Optical Communication System and Networks, Shanghai Jiao Tong University, Shanghai, ChinaDepartment of Electronic Engineering, State Key Laboratory of Advanced Optical Communication System and Networks, Shanghai Jiao Tong University, Shanghai, ChinaIn this paper, for the first time, we propose a nonparametric histogram estimation (NPHE) scheme for the nonuniform quantization in intensity modulated direct detection with filter bank multicarrier signal to improve system performance. By combining the NPHE scheme and the common nonlinear programming method, the distribution of offset quadrature amplitude modulation based optical orthogonal frequency division multiplexing (OQAM-OFDM) signal is accurately estimated and then it is used to achieve the optimal nonuniform quantization level. In this way, the low-level signal can achieve much more effective digitalizing bits, thereby significantly reducing the quantization noise. The numerical simulation and experiment with 10-Gb/s 16-order OQAM-OFDM signal over 20 km fiber are conducted to further verify the feasibility of our scheme. The results show that our scheme always outperforms the uniform quantization and Gaussian-like nonuniform schemes in terms of the signal to quantization noise ratio, error-vector-magnitudes, and bit error rate. Compared to the conventional method, our scheme also achieves received sensitivity improvement thereby improving the system power budget. So, it can support the low-bit resolution transmission in intensity modulated direct detection-based OQAM-OFDM system.https://ieeexplore.ieee.org/document/8387444/Nonparametric histogram estimationnonlinear programmingoptical OQAM-OFDMclipping ratio (CR)the IFFT/FFT bit precision. |
| spellingShingle | Meihua Bi Tiancheng Huang Ling Liu Xin Miao Shilin Xiao Weisheng Hu Performance Optimization by Nonparametric Histogram Estimation for Low Resolution in IMDD-OQAM-OFDM System IEEE Photonics Journal Nonparametric histogram estimation nonlinear programming optical OQAM-OFDM clipping ratio (CR) the IFFT/FFT bit precision. |
| title | Performance Optimization by Nonparametric Histogram Estimation for Low Resolution in IMDD-OQAM-OFDM System |
| title_full | Performance Optimization by Nonparametric Histogram Estimation for Low Resolution in IMDD-OQAM-OFDM System |
| title_fullStr | Performance Optimization by Nonparametric Histogram Estimation for Low Resolution in IMDD-OQAM-OFDM System |
| title_full_unstemmed | Performance Optimization by Nonparametric Histogram Estimation for Low Resolution in IMDD-OQAM-OFDM System |
| title_short | Performance Optimization by Nonparametric Histogram Estimation for Low Resolution in IMDD-OQAM-OFDM System |
| title_sort | performance optimization by nonparametric histogram estimation for low resolution in imdd oqam ofdm system |
| topic | Nonparametric histogram estimation nonlinear programming optical OQAM-OFDM clipping ratio (CR) the IFFT/FFT bit precision. |
| url | https://ieeexplore.ieee.org/document/8387444/ |
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