Performance investigation of high-speed FSO transmission system under the influence of different atmospheric conditions incorporating 3-D orthogonal modulation scheme

  • Mehtab SinghEmail author
  • Jyoteesh Malhotra


In this paper, we report the modeling and simulative investigation of a free space optics (FSO) transmission system using non-return to zero/differential quadrature phase shift keying/polarization shift keying 3-D orthogonal modulation scheme in which three independent 40 Gb/s data streams are transmitted simultaneously using different signal parameters over the same channel to improve the spectral efficiency of the link. The proposed system demonstrates a successful transmission of 120 Gb/s information over an FSO link range of 25 km with an acceptable bit-error rate (\(\sim 10^{ - 9}\)) under clear weather conditions. The performance of the proposed link is also analyzed under the effect of atmospheric turbulence. Further, we compare the performance of the proposed system with previously reported works in the literature and the results demonstrate that the proposed 3-D orthogonal modulation scheme based FSO transmission system performs better in terms of spectral efficiency, information capacity and maximum achievable link distance.


Free space optics Orthogonal modulation scheme Atmospheric attenuation Bit-error rate 



  1. Al-Nahhal, M., Ismail, T., Selmy, H., Elmesalawy, M.M.: BPSK based SIM-FSO communication system with SIMO over log-normal atmospheric turbulence with pointing errors. In: 2017 19th International Conference on Transparent Optical Networks (ICTON), Girona, pp. 1–4 (2017)Google Scholar
  2. Badar, N., Jha, R.K.: Performance comparison of various modulation schemes over free space optical (FSO) link employing Gamma–Gamma fading model. Opt. Quantum Electron. 49, 192–201 (2017)CrossRefGoogle Scholar
  3. Badar, N., Jha, R., Towfeeq, I.: Performance analysis of 80 (8 × 10) Gbps RZ-DPSK based WDM-FSO system under combined effects of various weather conditions and atmospheric turbulence induced fading employing Gamma–Gamma fading model. Opt. Quantum Electron. 50, 1–11 (2018)CrossRefGoogle Scholar
  4. Chaudhary, S., Amphawan, A.: Solid core PCF-based mode selector for MDM-Ro-FSO transmission systems. Photonic Netw. Commun. 36(2), 263–271 (2018)CrossRefGoogle Scholar
  5. Chow, C.-W., Kwok, C.H., Tsang, H.K., Lin, C.: Optical label switching of DRZ/DPSK orthogonal signal generated by photonic-crystal fiber. Opt. Lett. 31, 2535–2537 (2006). ADSCrossRefGoogle Scholar
  6. Dai, B., Gao, Z., Wang, X., Kataoka, N., Wada, N.: A novel optical orthogonal modulation format based on differential phase-shift keying and code-shift keying. IEEE Photonics Technol. Lett. 23(17), 1210–1212 (2011)ADSCrossRefGoogle Scholar
  7. Fadhil, H.A., et al.: Optimization of free space optics parameters: an optimum solution for bad weather conditions. Optik Int. J. Light Electron Opt. 124(19), 3969–3973 (2013)CrossRefGoogle Scholar
  8. Ghassemlooy, Z., Popoola, W.O.: Terrestrial free space optical communications. In: Fares, S.A., Adachi, F. (eds.) Mobile and Wireless Communication Network Layer and Circuit Level Design. InTech, Rijeka (2010)Google Scholar
  9. Hammed, N., Mehmood, T., Qasim, A.: Parametric investigation of different modulation techniques on free space optical systems. In: Proc. IEEE 12th International Conference on Frontiers on Information Technology, pp. 11–15 (2014)Google Scholar
  10. Kaur, D., Chaudhary, S.: 4 × 10 GBPS cost effective hybrid OADM-MDM short haul interconnects. Microw. Opt. Technol. Lett. 58, 1613–1617 (2016). CrossRefGoogle Scholar
  11. Kaur, G., Srivastava, D., Singh, P., Parasher, Y.: Development of a novel hybrid PDM/OFDM technique for FSO system and its performance analysis. Opt. Laser Technol. 109, 256–262 (2019)ADSCrossRefGoogle Scholar
  12. Kim, I., Mcarthur, B., Korevaar, E.: Comparison of laser beam propagation at 785 and 1550 nm in fog and haze for optical wireless communications. In: Proc. of SPIE Optical Wireless Communication, vol. 6303 (2006)Google Scholar
  13. Kumar, N., Teixeira, A.L.J.: 10 Gbit/s OFDM based FSO communication system using M-QAM modulation with enhanced detection. Opt. Quantum Electron. 48, 9–15 (2016)CrossRefGoogle Scholar
  14. Nadeem, L., Saadullah Qazi, M., Hassam, A.: Performance of FSO links using CSRZ, RZ, and NRZ and effects of atmospheric turbulence. J. Opt. Commun. 39(2), 191–197 (2017)CrossRefGoogle Scholar
  15. Ohm, M., Speidel, J.: Quaternary optical ASK-DPSK and receivers with direct detection. IEEE Photonics Technol. Lett. 15(1), 159–161 (2003)ADSCrossRefGoogle Scholar
  16. Prabu, K., Gupta, S., Jaiswal, S.: Impact of pointing errors and turbulence effects on POLSK and coherent OWC-based FSO system over generalized turbulence channel model. Photonic Netw Commun 36, 96–105 (2018)CrossRefGoogle Scholar
  17. Sarangal, H., Singh, A., Malhotra, J., Chaudhary, S.: A cost effective 100Gbps hybrid MDM-OCDMA-FSO transmission system under atmospheric turbulences. Opt. Quantum Electron. 49, 184–193 (2017)CrossRefGoogle Scholar
  18. Shao, Y., Chen, F., Chen, L., Shen, S., Wang, A., Luo, Y., Tan, Z.: DP-DQPSK optical access system integrated with fiber and free-space downlink for high spectral efficiency application. Opt. Photonics J. 6, 108–113 (2016)ADSCrossRefGoogle Scholar
  19. Singh, J., Kumar, N.: Performance analysis of different modulation format on free space optical communication system. Optik Int. J. Light Electron Opt. 124(20), 4651–4654 (2013)CrossRefGoogle Scholar
  20. Wang, X., He, Z., Liu, H., et al.: Improved optical coding method for orthogonal ASK/DPSK modulation format. Front. Optoelectron. China 1, 14–19 (2008)CrossRefGoogle Scholar
  21. Zhang, Y., Deng, N., Chan, C.K., Chen, L.K.: A multicast WDM-PON architecture using DPSK/NRZ orthogonal modulation. IEEE Photonics Technol. Lett. 20(17), 1479–1481 (2008)ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Electronics and Communication Engineering DepartmentGuru Nanak Dev UniversityJalandharIndia

Personalised recommendations