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

doi:10.3969/j.issn.1007-5461.2022.03.020

Abstract

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

CLC Number:

TN929.1

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.

References

[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.

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

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	LI Xiaojun , WANG Di , GONG Jingwen. Research Progress of Photonics-Assisted Terahertz Communications [J]. Chinese Journal of Quantum Electronics, 2023, 40(4): 423-435.
[2]	TAN Yeteng, PU Tao∗, ZHENG Jilin, ZHOU Hua, SU Guorui. Realization method of PSK quantum-noise randomized cipher system [J]. Chinese Journal of Quantum Electronics, 2022, 39(3): 423-430.
[3]	JIA Junliang, ZHANG Xiaoru, ZHAO Zidan, ZHANG Pei, ∗. Recognition of polarization rotation in vector vortex beam enabled by rotational Doppler effect [J]. Chinese Journal of Quantum Electronics, 2022, 39(2): 286-292.
[4]	CHEN Yukai , , PU Tao , ZHENG Jilin ∗ , LI Yunkun , YU Nan , CAO Yang . Research on performance of phase shift keying quantum-noise randomized cipher system [J]. Chinese Journal of Quantum Electronics, 2021, 38(6): 846-854.
[5]	SU Guorui , LIN Haokun , PU Tao ∗ , ZHENG Jilin , TAN Yeteng , MOU Weifeng . Serial feedback interference suppression algorithm for multi-user interference suppression [J]. Chinese Journal of Quantum Electronics, 2021, 38(6): 880-888.
[6]	ZHU Xufei, LU Ye∗ , LI Chuanqi∗ , WU Kangkang, CHEN Dong, KONG Yibu. FIR digital filters for compensation of chromatic dispersion in coherent receivers [J]. Chinese Journal of Quantum Electronics, 2021, 38(1): 17-24.
[7]	ZHANG Li, WANG Jingyuan, ZHENG Jilin, ZHANG Han, PU Tao. Performance of circular polarization modulation in atmospheric turbulence [J]. Chinese Journal of Quantum Electronics, 2020, 37(6): 737-744.
[8]	HUANG Jian, ∗, DENG Ke, . Theoretical challenges in the research of atmospheric coherent laser communication [J]. Chinese Journal of Quantum Electronics, 2020, 37(5): 556-565.
[9]	ZHANG Xin, CHE Yuxin, LIU Yu, WANG Suyi, DONG Haochen. Performance Analysis of Reed-Solomon Code in 25G-EPON System [J]. Chinese Journal of Quantum Electronics, 2020, 37(2): 242-249.
[10]	MA Zhi-min 1，*， SUN Yu-huai 2. The new exact solutions of cubic nonlinear schr\"{o}dinger equations [J]. Chinese Journal of Quantum Electronics, 2019, 36(4): 416-422.
[11]	FU Wencheng1,LIU Yiying1, GE Weichun2,YU Penghao1， FU Lina3,CHEN Yu1. The study of thermal-stain loss of optical fiber in the OPLC [J]. Chinese Journal of Quantum Electronics, 2019, 36(2): 248-256.
[12]	Kun Liao1, JianFei Liao2, BoXun Li1, Bin Wang1, Biao Xu1, YingMao Xie2,*. A kind of defect photonic crystal fiber with high birefringence and two zero-dispersion [J]. Chinese Journal of Quantum Electronics, 2019, 36(1): 123-128.
[13]	CHEN Yitian, LIU Hongwei, QU Wenxiu, DOU Tianqi, WANG Jipeng, LI Yuemei, MA Haiqiang . Software control in quantum key distribution system [J]. Chinese Journal of Quantum Electronics, 2018, 35(6): 682-689.
[14]	WANG Hailun1, CONG Shuang1, SHANG Weiwei1, CHEN Ding2. Design of optical signal transmission system in quantum navigation and positioning system [J]. Chinese Journal of Quantum Electronics, 2018, 35(6): 714-722.
[15]	HU Tao, PAN Sunxiang, WANG Le, ZHAO Shengmei. Influence of underwater turbulence on channel capacity of orbital angular momentum communication system [J]. J4, 2018, 35(4): 499-506.