基于改进 Gardner 算法的水下无线光
OQPSK 系统性能分析

doi:10.3969/j.issn.1007-5461.2022.03.020

量子电子学报 ›› 2022, Vol. 39 ›› Issue (3): 467-476.doi: 10.3969/j.issn.1007-5461.2022.03.020

• 光通信 • 上一篇

基于改进 Gardner 算法的水下无线光 OQPSK 系统性能分析

杨祎, 刘雯∗, 阴亚芳, 贺锋涛, 张建磊

( 西安邮电大学电子工程学院, 陕西西安710121 )

收稿日期:2020-10-12 修回日期:2020-12-03 出版日期:2022-05-28 发布日期:2022-05-28
通讯作者: E-mail: 15209233306@163.com E-mail:15209233306@163.com
作者简介:杨祎( 1970 - ), 女, 陕西西安人, 硕士, 副教授, 硕士生导师, 主要从事光电子技术与光通信方面的研究。 E-mail: yangyi@xupt.edu.cn
基金资助:
Supported by National Natural Science Foundation of China (国家自然科学基金, 61805199), National Defense Basic Scientific Research Program Laboratory Stability Support Special Project (国防基础科研计划实验室稳定支持专题项目, JCKY2020207CD02), Shaanxi Province Technology Innovation Guidance Special Funding Project (陕西省技术创新引导专项资助项目, 2020TG-001), Xi’an University of Posts and Telecommunications Postgraduate Joint Training Base (西安邮电大学研究生联合培养工作基地资助项目, YJGJ201905)

Performance analysis of underwater wireless optical communication system based on improved Gardner algorithm of OQPSK modulation

YANG Yi, LIU Wen∗, YIN Yafang, HE Fengtao, ZHANG Jianlei

( School of Electronic Engineering, Xi’an University of Posts and Telecommunications, Xi’an 710121, China )

Received:2020-10-12 Revised:2020-12-03 Published:2022-05-28 Online:2022-05-28

摘要/Abstract

摘要： 针对水下无线光通信(UWOC) 中海水信道的衰减特性和系统自噪声对调制性能的影响, 提出了一种改进的Gardner 定时同步算法, 建立了基于偏移正交相移键控(OQPSK) 调制的UWOC 系统模型, 仿真分析了 OQPSK 调制系统中水质和传输距离对误码率(BER) 性能的影响规律。结果表明, 与正交振幅调制(QAM)、四相相对移相键控(QDPSK)、开关键控(OOK) 调制的系统相比, 当系统BER 达到10􀀀3 时, 采用OQPSK 调制可分别获得2.2、4.4、6.2 dB 左右的增益。与OOK 调制相比, 采用OQPSK 调制可获得2.38.2 m 的距离增益。在衰减较大的水下信道中, 提出的Gardner 算法较好地改善了OQPSK 调制信号的同步性能, 与传统算法相比, BER 明显降低, 可获得约12.514.2 dB 左右的增益。

关键词: 光通信, 水下无线光通信系统, 定时同步, 偏移正交相移键控调制, Gardner 算法

Abstract: Considering the attenuation characteristics of the seawater channel in underwater wireless optical communication (UWOC) and the influence of system self-noise on the modulation performance, an improved Gardner timing synchronization algorithm is proposed, and an UWOC system model is established based on offset quadrature phase shift keying (OQPSK) modulation, then the influence of water types and transmission distance on the bit error rate (BER) performance in the OQPSK modulation system is simulated and analyzed. The simulation results show that compared with quadrature amplitude modulation (QAM), quadrature differential phase shift keying (QDPSK) and on off keying (OOK) modulation systems, when the BER of the system reaches 10􀀀3, OQPSK modulation can obtain the gains of about 2.2, 4.4 and 6.2 dB respectively. And compared with OOK modulation, OQPSK modulation can obtain a distance gain of 2.3-8.2 m. In addition, in the underwater channel with large attenuation, the proposed Gardner algorithm can improve the synchronization performance of the OQPSK modulation signal, and compared with the traditional algorithm, the bit error rate of the proposed algorithm is significantly reduced, and a gain of about 12.5-14.2 dB can be obtained.

Key words: optical communication, underwater wireless optical communication system, timing synchronization; offset quadrature phase shift keying modulation, Gardner algorithm

中图分类号:

TN929.1

杨祎, 刘雯∗, 阴亚芳, 贺锋涛, 张建磊. 基于改进 Gardner 算法的水下无线光 OQPSK 系统性能分析[J]. 量子电子学报, 2022, 39(3): 467-476.

YANG Yi, LIU Wen, YIN Yafang, HE Fengtao, ZHANG Jianlei. Performance analysis of underwater wireless optical communication system based on improved Gardner algorithm of OQPSK modulation[J]. Chinese Journal of Quantum Electronics, 2022, 39(3): 467-476.

参考文献

[1] Chi Nan, Wang Chaofan, Li Weiping, et al. Research progress of underwater visible light communication technology based on blue/green LED [J]. Journal of Fudan University: Natural Science (复旦学报(自然科学版)), 2019, 58(05): 537-548(in Chinese).
[2] Yi Congqin, Zhou Ruyan. Research on application of key technologies of underwater wireless optical communication [J]. Communication Technology(通信技术), 2017, 50(10): 2202-2205(in Chinese).
[3] Fei Chao, Zhang Junwei, Zhang Gouwu, et al. Demonstration of 15-meter 7.33-Gbps 450-nm underwater wireless optical discrete multitone transmission using post nonlinear equalization [J]. Journal of Lightwave Technology, 2018, 36(5): 728-734．
[4] Gabriel C, Khalighi M, Bourennane S, et al. Channel modeling for underwater optical communication[C]. The 2011 IEEE Globecom Workshops, 2011.
[5] Ghassemlooy Z, Arnon S, Uysal M, et al. Emerging optical wireless communications- advances and challenges[J]. IEEE Journal on Selected Areas in Communications, 2015, 5(33): 1738-1749.
[6] Zhao Jing, Zhao Shanghong, Zhao Weihu, et al. BER performance analysis of M-ary PPM over exponentiated weibull distribution for airborne laser communications[J]. Optical Technology, 2017, 30(84): 658-663.
[7] Wang Hongxi, He Fengtao, Zhan Fei, et al. Design of underwater LED blue light communication system based on PPM[J]. Optical Commuication Technology(光通信技术), 2018, 42(07): 46-50(in Chinese).
[8] Wu Tsaichen, Chi Yuchieh, Wang Huaiyung, et al. Blue laser diode enables underwater communication at 12.4 Gbps[J]. Scientific Reports, 2017, 21(7): 40480．
[9] Kong Meiwei, Lv Weichao, Ali Tarig, et al. 10m 9.51 Gb/s RGB laser diodes-based WDM underwater wireless optical communication[J]. Optical Express, 2017, 25(17): 20829-20834.
[10] Wang Jingjing, Tian Chengfeng, Yang Xinghai, et al. Underwater wireless optical communication system using a 16-QAM modulated 450-nm laser diode based on an FPGA[J]. Applied Optics, 2019(58): 4553-4559.
[11] Gabriel C, Khalighi M, Bourennane S, et al. Investigation of suitable modulation techniques for underwater wireless optical communication[C]. Wireless Communication, 2012.
[12] Al H, Oubel A, Hm O, et al. Real-time video transmission over different underwater wireless optical channels using a directly modulated 520 nm laser diode[J]. Optical Communications and Networking, 2017, 12(9): 826-832.
[13] Gong Yulin. Research on the performance of FSO system based on OQPSK modulation[J]. Optical Communication Technology(光通信技术), 2016, 40 (05): 29-31(in Chinese).
[14] Gardner F M. A BPSK/QPSK Timing-error Detector for Sampled Receivers[J]. IEEE Transactions. on Communications, 1986, 34(3): 423-429.
[15] Federica S, Alcatel L. Impact of self noise on tracking performance of non-data-aided digital timing recovery[J]. Journal of Lightwave Technology, 2015, 33(18): 3755-3762.
[16] Atsushi M, Fujifilm C. A study of timing recovery for high-recording-density tape systems [J]. IEEE Transactions on Magnetics, 2015, 51(11): 1973-1978.
[17] Wang Fei, Yin Yafang, Yang Yi. Analysis of the influence of the laser transmission distance of the sea channel on the received power[J]. Optical Communication Research(光通信研究), 2017, 23(2): 23-26(in Chinese).
[18] Xie Shuhao. Research and implementation of high speed OQPSK digital demodulation synchronization technology[D]. Chengdu: University of Electronic Science and Technology of China, 2018.
谢书豪. 高速OQPSK数字解调同步技术研究与实现[D]. 成都：电子科技大学, 2018.
[19] Yang Dewei, Yan Chaoxing, Wang Hua, et al. Extension to gardner timing error detector for QPSK signals[C]. International Conference on Wireless Communications and Signal Processing, 2010.

基于改进 Gardner 算法的水下无线光 OQPSK 系统性能分析

Performance analysis of underwater wireless optical communication system based on improved Gardner algorithm of OQPSK modulation

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