BER performance for PSK-OFDM optical link over Exponentiated Weibull atmospheric turbulence

Zhang Yun; Wang Xiang; Zhao Shanghong; Meng Wen; Zhao Jing

doi:10.12086/oee.2018.170540

Article navigation > Opto-Electronic Engineering > 2018 Vol. 45 > No. 2 > 170540

Next Article Previous Article

Zhang Yun, Wang Xiang, Zhao Shanghong, et al. BER performance for PSK-OFDM optical link over Exponentiated Weibull atmospheric turbulence[J]. Opto-Electronic Engineering, 2018, 45(2): 170540. doi: 10.12086/oee.2018.170540

Citation:

Zhang Yun, Wang Xiang, Zhao Shanghong, et al. BER performance for PSK-OFDM optical link over Exponentiated Weibull atmospheric turbulence[J]. Opto-Electronic Engineering, 2018, 45(2): 170540. doi: 10.12086/oee.2018.170540

BER performance for PSK-OFDM optical link over Exponentiated Weibull atmospheric turbulence

Information and Navigation College, Air Force Engineering University, Xi'an, Shaanxi 710077, China

More Information

Author Bio: Zhang Yun, E-mail:rhyme0115@126.com
Corresponding author: Zhao Shanghong, E-mail: zhaoshangh@aliyun.com

Received Date 18 September 2017

Revised Date 28 December 2017

Published Date 22 February 2018

Abstract

Abstract

Aiming at the combined effects of the Exponentiated Weibull atmosphere turbulence, aero-optical effects and pointing errors on space optical links, the bit error rate (BER) performance of the orthogonal frequency division multiplexing (OFDM) optical communication link is investigated. OFDM links adopted PSK modulation. The closed-form expression for average bit error rate is derived based on a Meijer's G function. The relationship between the BER performance and the transmitted optical power under different parameters such as the atmosphere turbulence, the normalized jitter standard deviation and the normalized beam-width is analyzed by simulation. The results show that the BER performance is similarly improved in different intensity turbulence by increasing the transmitted optical power. The BER performance is obviously improved by increasing the transmitted optical power when the normalized jitter standard deviation is less than 0.7 and the modulation order is less than 4.
- Exponentiated Weibull distribution /
- pointing error /
- orthogonal frequency division multiplexing /
- PSK /

FullText(HTML)

References

[1]	Puri P, Garg P, Aggarwal M. Outage and error rate analysis of network-coded coherent TWR-FSO systems[J]. IEEE Photonics Technology Letters, 2014, 26(18): 1797-1800. doi: 10.1109/LPT.2014.2333032 CrossRef Google Scholar
[2]	Zvanovec S, Perez J, Ghassemlooy Z, et al. Route diversity analyses for free-space optical wireless links within turbulent scenarios[J]. Optics Express, 2013, 21(6): 7641-7650. doi: 10.1364/OE.21.007641 CrossRef Google Scholar
[3]	Vetelino F S, Young C, Andrews L. Fade statistics and aperture averaging for Gaussian beam waves in moderate-to-strong turbulence[J]. Applied Optics, 2007, 46(18): 3780-3790. doi: 10.1364/AO.46.003780 CrossRef Google Scholar
[4]	Perlot N, Fritzsche D. Aperture averaging: theory and measurements[J]. Proceedings of SPIE, 2004, 5338: 233-242. doi: 10.1117/12.528901 CrossRef Google Scholar
[5]	Mostafa A, Hranilovic S. In-field demonstration of OFDM-Over-FSO[J]. IEEE Photonics Technology Letters, 2012, 24(8): 709-711. doi: 10.1109/LPT.2012.2187279 CrossRef Google Scholar
[6]	寿钦, 张涛, 王涵. Gamma-Gamma大气湍流下自由空间光通信MIMO-OFDM系统误比特率分析[J].激光与光电子学进展, 2013, 50(2): 020602. Google Scholar Shou Q, Zhang T, Wang H. Analysis of BER performance in free-space optical MIMO-OFDM communication systems over the Gamma-Gamma atmospheric turbulence[J]. Laser & Optoelectronics Progress, 2013, 50(2): 020602. Google Scholar
[7]	Bekkali A, Naila C B, Kazaura K, et al. Transmission analysis of OFDM-based wireless services over turbulent Radio-on-FSO links modeled by Gamma-Gamma distribution[J]. IEEE Photonics Journal, 2010, 2(3): 510-520. doi: 10.1109/JPHOT.2010.2050306 CrossRef Google Scholar
[8]	丁西峰, 赵尚弘, 王翔, 等. M-QAM调制下高空平台OFDM光链路误码性能[J].电子测量与仪器学报, 2017, 31(5): 669-675. Google Scholar Ding X F, Zhao S H, Wang X, et al. BER performance for HAP OFDM optical link with M-QAM[J]. Journal of Electronic Measurement and Instrumentation, 2017, 31(5): 669-675. Google Scholar
[9]	王勇, 曹家年.大气激光通信非对称限幅光正交频分复用技术[J].光子学报, 2011, 40(1): 36-40. Google Scholar Wang Y, Cao J N. Performance analysis of atmospheric laser communication system based on asymmetrically clipped optical orthogonal frequency division multiplexing intensity modulation[J]. Acta Photonica Sinica, 2011, 40(1): 36-40. Google Scholar
[10]	Andrews L C, Phillips R L. Laser beam propagation through random media[M]. 2nd ed. Bellingham: SPIE Press, 2005. Google Scholar
[11]	Phillips R L, Andrews L C. FSO communications: atmospheric effects for an airborne backbone[J]. Proceedings of SPIE, 2008, 6951: 695102. doi: 10.1117/12.785861 CrossRef Google Scholar
[12]	Barrios R, Dios F. Exponentiated Weibull distribution family under aperture averaging for Gaussian beam waves[J]. Optics Express, 2012, 20(12): 13055-13064. doi: 10.1364/OE.20.013055 CrossRef Google Scholar
[13]	Barrios R, Dios F. Exponentiated Weibull model for the irradiance probability density function of a laser beam propagating through atmospheric turbulence[J]. Optics & Laser Technology, 2013, 45: 12-20. Google Scholar
[14]	韩立强, 游雅晖.大气湍流及瞄准误差联合效应下自由空间光通信的性能[J].光学学报, 2014, 34(11): 1106005. Google Scholar Han L Q, You Y H. Performance of free space optical communication with combined effects from atmospheric turbulence and pointing errors[J]. Acta Optica Sinica, 2014, 34(11): 1106005. Google Scholar
[15]	王涵, 张涛, 李莎. Gamma-Gamma大气湍流下FSO-OFDM调制系统误码率分析[J].激光与光电子学进展, 2012, 49(11): 110102. Google Scholar Wang H, Zhang T, Li S. Bit-error-rate analysis of FSO-OFDM modulation system over Gamma-Gamma atmospheric turbulence[J]. Laser & Optoelectronics Progress, 2012, 49(11): 110102. Google Scholar
[16]	Adamchik V S, Marichev O I. The algorithm for calculating integrals of hypergeometric type functions and its realization in reduce system[C]//Proceedings of the International Symposium on Symbolic and Algebraic Computation, 1990: 212-224. Google Scholar
[17]	Farid A A, Hranilovic S. Outage capacity optimization for free-space optical links with pointing errors[J]. Journal of Lightwave Technology, 2007, 25(7): 1702-1710. doi: 10.1109/JLT.2007.899174 CrossRef Google Scholar

Overview

Overview

Overview: Laser communication has many advantages, such as large bandwidth, high speed, fast and simple deployment and free band. Compared with traditional radio communication, it has a wider application prospect in civilian and military applications. However, in aviation laser communication, aircraft flight at an altitude of 7 km~10 km, airborne laser link is extremely easy to be influenced by the atmospheric turbulence intensity fluctuation in the receiving end, at the same time, the atmospheric boundary layer around the plane generated by the aero optical effects on the laser signal transmission will be affected. Orthogonal frequency division multiplexing (OFDM) is a multi carrier modulation mode, which modulates multiple independent data streams through multiple subcarriers with different frequencies. It has good anti frequency selective fading, narrow band interference and high channel utilization. OFDM subcarrier can use many different modulation modes. The two main modulation modes are multilevel quadrature amplitude modulation (MQAM) and multiple phase-shift keying modulation (MPSK). The quadrature amplitude modulation (QAM) demodulator needs to detect the phase and amplitude at the same time, and phase shift keying (PSK) demodulation only needs to detect the phase. In 2012, Barrios R and Dios F first proposed the Exponentiated Weibull atmospheric turbulence model for the weak to strong turbulence and the average aperture. Therefore, aiming at the characteristics of Aeronautical laser communication, based on the Exponentiated Weibull distribution atmospheric turbulence model, the joint pointing error is used to study the performance of OFDM system with PSK modulation mode. Aiming at the combined effects of the Exponentiated Weibull atmosphere turbulence, aero-optical effects and pointing errors on space optical links, the bit error rate (BER) performance of the OFDM optical communication link is investigated. OFDM links adopted PSK modulation. The closed-form expression for average bit error rate is derived based on a Meijer’s G function. The relationship between the BER performance and the transmitted optical power under different parameters such as the atmosphere turbulence, the normalized jitter standard deviation and the normalized beam-width is analyzed by simulation. The results show that the BER performance is similarly improved in different intensity turbulence by increasing the transmitted optical power. The BER performance is obviously improved by increasing the transmitted optical power when the normalized jitter standard deviation is less than 0.7 and the modulation order is less than 4. In practical application, the derived average error rate closed expression can be used to estimate the performance of the system and provide reference for the design of the aviation laser communication system.