Coherent Free-space Optical Communication with 8-QAM Modulation Using Joint Algorithm of Amplitude Compensation and Digital Phase Recovery

LI Lin; WU Zhi-yong

doi:10.3788/fgxb20204102.0224

您当前的位置：

首页 >

文章列表页 >

Coherent Free-space Optical Communication with 8-QAM Modulation Using Joint Algorithm of Amplitude Compensation and Digital Phase Recovery

Luminescence Applications and Interdisciplinary Fields | 更新时间：2020-08-12

- Coherent Free-space Optical Communication with 8-QAM Modulation Using Joint Algorithm of Amplitude Compensation and Digital Phase Recovery
- Chinese Journal of Luminescence Vol. 41, Issue 2, Pages: 224-231(2020)
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所,吉林长春,130033
  2. 中国科学院大学, 北京 100049
- 作者简介：
- 基金信息：
  
  Supported by National Natural Science Foundation of China(51605465);Research Proje
- DOI：10.3788/fgxb20204102.0224
  CLC：
扫描看全文
LI Lin, WU Zhi-yong. Coherent Free-space Optical Communication with 8-QAM Modulation Using Joint Algorithm of Amplitude Compensation and Digital Phase Recovery. [J]. Chinese Journal of Luminescence 41(2):224-231(2020)
DOI：

LI Lin, WU Zhi-yong. Coherent Free-space Optical Communication with 8-QAM Modulation Using Joint Algorithm of Amplitude Compensation and Digital Phase Recovery. [J]. Chinese Journal of Luminescence 41(2):224-231(2020) DOI： 10.3788/fgxb20204102.0224.

摘要

提出了基于幅度相位联合校正算法的8阶正交幅度调制（8-QAM）自由空间相干光通信方案。与传统的自由空间光通信方案相比，本文提出的方案不仅无需信道状态信息（CSI）就可以实现对原信号的高精度还原，同时还具有较高的光谱效率。仿真实验表明，当接收端与发射端的频偏,f,0,=20 MHz、激光器联合线宽,f,=10 kHz、信噪比为20 dB时，该方案在归一化大气闪烁标准差,=0.25、归一化相位噪声方差,2,=0.07的对数正态湍流信道条件下，其误码率（BER）与未采用联合校正算法的8-QAM系统相比低4个量级。

Abstract

Coherent free-space optical communication with 8-quadrature amplitude modulation (8-QAM) using joint algorithm of amplitude compensation and digital phase recovery is proposed. Compared with traditional free-space optical communication schemes, the scheme we proposed not only can restore the signal without requiring the knowledge of instantaneous channel state information, but also has higher spectral efficiency. Numerical studies show that the bit error rate of the proposed system is four orders of magnitude lower than that of the 8-QAM system without joint algorithm, when the frequency offset ,f,0,=20 MHz between the receiver and the transmitter, the lasers joint linewidth ,f,=10 kHz, and the signal-to-noise ratio is 20 dB for a lognormal turbulence channel with ,=0.25 and phase noise with ,2,=0.07.

关键词

自由空间光通信正交幅度调制相干探测。

Keywords

free-space optical communicationsquadrature amplitude modulation (QAM)coherent detection

references

HOU L F,ZHANG L,KIM J. Energy modeling and power measurement for mobile robots[J]. Energies, 2019,12(1):27-1-15.

MALINAUSKAS M,?UKAUSKAS A,HASEGAWA S,et al.. Ultrafast laser processing of materials:from science to industry[J]. Light:Sci. Appl., 2016,5:e16133-1-14.

曹明华,姚宇,宋梨花,等. 沙尘信道下激光通信系统的性能分析[J]. 发光学报, 2019,40(5):659-665. CAO M H,YAO Y,SONG L H,et al.. Performance analysis of laser communication system under sand-dust channel[J]. Chin. J. Lumin., 2019,40(5):659-665. (in Chinese)

李明磊,吴谨,白涛,等. 大随机相位误差下条带模式合成孔径激光雷达成像实验[J]. 中国光学, 2019,12(1):130-137. LI M L,WU J,BAI T,et al.. Stripmap mode synthetic aperture ladar imaging under large random phase errors condition[J]. Chin. Opt., 2019,12(1):130-137. (in Chinese)

张璐,吴志勇,高世杰,等. 大气湍流中超短高斯激光脉冲的时间域展宽模型研究[J]. 光学学报, 2012,32(4):0401001-1-6. ZHANG L,WU Z Y,GAO S J,et al.. Study of time-domain spreading model of ultrashort Gaussian laser pulses in atmospheric turbulence[J]. Acta Opt. Sinica, 2012,32(4):0401001-1-6. (in Chinese)

李少辉,陈小梅,倪国强. 高精度卫星激光通信地面验证系统[J]. 光学精密工程, 2017,25(5):1149-1158. LI S H,CHEN X M,NI G Q. Highly precise ground certification system of satellite laser communication[J]. Opt. Precision Eng., 2017,25(5):1149-1158. (in Chinese)

LI L,GENG T W,WANG Y,et al.. Free-space optical communication using coherent detection and double adaptive detection thresholds[J]. IEEE Photonics J., 2019,11(1):7900217.

涂焱阳,吴志勇,马爽,等. 阈值可变的高速光通信脉冲位置调制的帧同步[J]. 中国激光, 2017,44(11):106008-1-8. TU Y Y,WU Z Y,MA S,et al.. Frame synchronization of pulse position modulation in high-speed optical communication with variable threshold[J]. Chin. J. Lasers, 2017,44(11):106008-1-8. (in Chinese)

LI Y T,GUO S A,GENG T W,et al.. Evaluation on the capacity and outage performance of the free space optical system impaired by timing jitters over an aggregate channel[J]. Opt. Eng., 2017,56(7):076108.

马爽,吴志勇,高世杰,等. 改进的大气激光通信PPM调制解调系统设计[J]. 哈尔滨工业大学学报, 2016,48(5):105-109. MA S,WU Z Y,GAO S J,et al.. Design of modified atmospheric laser communication PPM modulation-demodulation system[J]. J. Harbin Inst. Technol., 2016,48(5):105-109. (in Chinese)

RAKESHKRISHNA V S,SINGHAL R. 720-Mbps 64-QAM-OFDM SCM transmission over RGB-LED-based FSO communication system[C]. Proceedings of The 201613th International Conference on Wireless and Optical Communications Networks,Hyderabad,India, 2016.

柯熙政,解孟其,石碧瑶. 无线光通信系统中64-QAM调制实验研究[J]. 红外与激光工程, 2018,47(S1):68-73. KE X Z,XIE M Q,SHI B Y. Research on 64-QAM subcarrier modulation for optical wireless communication[J]. Infrared Laser Eng., 2018,47(S1):68-73. (in Chinese)

LI X L,GENG T W,MA S,et al.. Performance improvement of coherent free-space optical communication with quadrature phase-shift keying modulation using digital phase estimation[J]. Appl. Opt., 2017,56(16):4695-4701.

BELMONTE A,KAHN J M. Capacity of coherent free-space optical links using diversity-combining techniques[J]. Opt. Express, 2009,17(15):12601-12611.

FRIED D L. Optical heterodyne detection of an atmospherically distorted signal wave front[J]. Proc. IEEE, 1967,55(1):57-77.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Free-space Coherent Optical Communication System Using Irradiance Modulation with Dynamic Detection Threshold

Related Author

No data

Related Institution

Modern Engineering Training Center, Chang'an University

Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China

University of Chinese Academy of Sciences, Beijing 100049, China

Address：No.3888 Dong Nanhu Road, Changchun, Jilin, China Postal code：130033
Tel：0431-86176862 Email：fgxbt@126.com
Technical support is provided by Beijing Founder electronics co., LTD 吉ICP备11002662号-17 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰