基于DMT调制的不同子载波数的32QAM-OFDM-PON光接入方案研究

IF 1.9 4区物理与天体物理 Q3 OPTICS

Journal of the European Optical Society-Rapid Publications Pub Date : 2020-05-06 DOI:10.1186/s41476-020-00131-w

Yufeng Shao, Ying Long, Anrong Wang, Zefu Tan, Guoping Lei, Zhengquan Hu, Yu Liu, Qinzheng Hu, Zhuang Wang, Jie Yang

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引用次数: 6

摘要

设计了一种采用离散多音(DMT)调制解调的不同子载波数的32QAM-OFDM-PON光学系统，并进行了实验验证。实现了32QAM-OFDM下游信号的光电产生、光电直接检测和电自混接。5Gb/s 32QAM-OFDM下行信号与不同数量的子载波成功传输超过42?公里SMF-28。分析了峰值平均功率比特性、计算复杂度和误码率性能。结果表明，在考虑频谱效率、PAPR特性、计算复杂度和接收机灵敏度等因素的情况下，32QAM-OFDM下行信号的子载波数应根据实际需要进行精心选择。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Research on optical 32QAM-OFDM-PON access scheme with different numbers of sub-carriers using DMT modulation

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Research on optical 32QAM-OFDM-PON access scheme with different numbers of sub-carriers using DMT modulation

An optical 32QAM-OFDM-PON system with different numbers of sub-carriers using discrete multitone (DMT) modulation and demodulation is designed and demonstrated by experiment. Electron-optic generation, directly photoelectric detection, and electrical self-mixing reception of 32QAM-OFDM downstream signals are achieved. 5Gb/s 32QAM-OFDM downlink signals with different numbers of sub-carriers are successfully transmitted over 42?km SMF-28. Peak-to average power ratio (PAPR) characteristic, computational complexity and bit error rate (BER) performance are analyzed. The results show that the sub-carriers numbers of 32QAM-OFDM downlink signals should be carefully selected according to the actual requirements, if spectral efficiency, PAPR characteristic, computational complexity and receiver sensitivity are considered.

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来源期刊

Journal of the European Optical Society-Rapid Publications 物理-光学

CiteScore

2.40

自引率

0.00%

发文量

审稿时长

5 weeks

期刊介绍： Rapid progress in optics and photonics has broadened its application enormously into many branches, including information and communication technology, security, sensing, bio- and medical sciences, healthcare and chemistry. Recent achievements in other sciences have allowed continual discovery of new natural mysteries and formulation of challenging goals for optics that require further development of modern concepts and running fundamental research. The Journal of the European Optical Society – Rapid Publications (JEOS:RP) aims to tackle all of the aforementioned points in the form of prompt, scientific, high-quality communications that report on the latest findings. It presents emerging technologies and outlining strategic goals in optics and photonics. The journal covers both fundamental and applied topics, including but not limited to: Classical and quantum optics Light/matter interaction Optical communication Micro- and nanooptics Nonlinear optical phenomena Optical materials Optical metrology Optical spectroscopy Colour research Nano and metamaterials Modern photonics technology Optical engineering, design and instrumentation Optical applications in bio-physics and medicine Interdisciplinary fields using photonics, such as in energy, climate change and cultural heritage The journal aims to provide readers with recent and important achievements in optics/photonics and, as its name suggests, it strives for the shortest possible publication time.