Research on performances of single sideband modulated OFDM signals in ROF optical transmission system

LEI Xiao-yan1; CHEN Lin1; DONG Ze1; CAO Zi-zheng1; LU Jia1; YU Jian-jun1

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Research on performances of single sideband modulated OFDM signals in ROF optical transmission system

更新时间：2024-10-14

- Research on performances of single sideband modulated OFDM signals in ROF optical transmission system
- Vol. 30, Issue 11, Pages: 120-126(2009)
- 作者机构：
  
  1. 湖南大学计算机与通信学院
  2. 湖南大学微纳光电器件及应用教育部重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN929.11
- Published：2009
- 稿件说明：
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LEI Xiao-yan1, CHEN Lin1, DONG Ze1, et al. Research on performances of single sideband modulated OFDM signals in ROF optical transmission system[J]. 2009, 30(11): 120-126.
DOI：

LEI Xiao-yan1, CHEN Lin1, DONG Ze1, et al. Research on performances of single sideband modulated OFDM signals in ROF optical transmission system[J]. 2009, 30(11): 120-126. DOI：

摘要

研究了一种光纤无线通信系统中用单边带产生光载波并传输的OFDM-ROF方案。将2Gbit/s的OFDM信号与10GHz的射频信号混频驱动电光调制器

产生单边带调制信号

调制后的信号经光纤传输至基站

通过光电转换后再进行无线传输。实验证实

2Gbit/s的基带OFDM信号在10GHz-ROF系统中通过光纤传输200km后不经无线传输

其功率代价仅为1dB。不经过光纤仅经过8m无线传输后功率代价大约只有0.3dB。产生的信号既经过200km光纤传输又经过8m无线传输后接收星座图也很好。

Abstract

A novel OFDM-ROF system using single sideband modulation technology in radio-over-fiber system to generate optical wave was proposed and experimentally demonstrated.The 2Gbit/s OFDM signal and a 10GHz RF clock were mixed.The mixed signals were applied to drive a double-arm intensity modulator to generate a single sideband signal which transmitted to base station（BS） over fiber and broadcasted by antenna after the optical OFDM signal was converted into electrical OFDM signal.The experiment results show that in 10GHz-ROF system

a 2Gbit/s OFDM signal transmitted over 200km SMF without wireless broadcasting only has 1dB power penalty.After being only transmitted over 8m wireless air distance it has 0.3dB power penalty.When the signal transmitted over both 200km SMF and wireless air distance of 8m

also can obtain a clear received constellation in the experiment.

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