Performance analysis of mode division multiplexing based free space optics system incorporating on–off keying and polarization shift keying under dynamic environmental conditions

Abstract

In this paper, we propose a novel mode division multiplexing (MDM) based FSO transmission system incorporating polarization shift keying (PolSK) to enhance the information carrying capacity of the system. Using numerical simulations, we report the transmission of two independent 40 Gbps information signals using distinct Laguerre Gaussian modes up to an FSO transmission reach of 90 km under the influence of clear environmental conditions using the proposed system. Further, the influence of different environmental conditions such as rain, haze, and fog on the performance of the proposed link using bit error rate as performance metrics has also been investigated in this paper. Also, we report a comparative analysis of PolSK and on–off keying modulation formats in the proposed MDM-FSO link under the same environmental conditions. The simulation results show that under different weather conditions, PolSK based MDM-FSO transmission system demonstrates better performance.

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References

  1. 1.

    Singh, J., & Kumar, N. (2013). Performance analysis of different modulation format on free space optical communication system. Optik,124(20), 4651–4654.

    Article  Google Scholar 

  2. 2.

    Badar, N., & Jha, R. K. (2017). Performance comparison of various modulation schemes over free space optical (FSO) link employing Gamma–Gamma fading model. Optical and Quantum Electronics,49, 192.

    Article  Google Scholar 

  3. 3.

    Fadhil, H. A., et al. (2013). Optimization of free space optics parameters: An optimum solution for bad weather conditions. Optik-International Journal for Light and Electron Optics,124(19), 3969–3973.

    Article  Google Scholar 

  4. 4.

    Hammed, N., Mehmood, T., & Qasim, A. (2014). Parametric investigation of different modulation techniques on free space optical systems. In Proceedings of IEEE 12th international conference on frontiers on information technology (pp. 11–15).

  5. 5.

    Nadeem, L., Saadullah Qazi, M., & Hassam, A. (2017). Performance of FSO links using CSRZ, RZ, and NRZ and effects of atmospheric turbulence. Journal of Optical Communications,39(2), 191–197.

    Article  Google Scholar 

  6. 6.

    Dayal, N., Singh, P., & Kaur, P. (2017). Long-range cost-effective WDM-FSO system using hybrid optical amplifiers. Wireless Personal Communications,97(4), 0055–6067.

    Article  Google Scholar 

  7. 7.

    Prabhu, K., Charanya, S., Jain, M., & Guha, D. (2017). BER analysis of SS-WDM based FSO system for vellore weather conditions. Optics Communication,403, 73–80.

    Article  Google Scholar 

  8. 8.

    Kumar, N., & Teixeira, A. (2016). 10 Gbit/s OFDM based FSO communication system using M-QAM modulation with enhanced detection. Optical and Quantum Electronics,48, 9.

    Article  Google Scholar 

  9. 9.

    Kaur, G., Srivastava, D., Singh, P., & Parasher, Y. (2019). Development of a novel hybrid PDM/OFDM technique for FSO system and its performance analysis. Optics & Laser Technology,109, 256–262.

    Article  Google Scholar 

  10. 10.

    Luo, J., Li, J., Sui, Q., Li, Z., & Lu, C. (2016). 40 Gb/s mode-division multiplexed DD-OFDM transmission over standard multi-mode fiber. IEEE Photonics Journal,8(3), 1–7.

    Article  Google Scholar 

  11. 11.

    Arik, S. O., Kahn, J. M., & Ho, K. (2014). MIMO signal processing for mode-division multiplexing: An overview of channel models and signal processing architectures. IEEE Signal Processing Magazine,31(2), 25–34.

    Article  Google Scholar 

  12. 12.

    Kasmi, M., Bahloul, F., Lee, Y. S., Oh, K., Mhatli, S., & Attia, R., (2018) Design of hollow optical fiber for mode division multiplexing. In 2018 20th International Conference on Transparent Optical Networks (ICTON), Bucharest (pp. 1–3).

  13. 13.

    Liu, J., et al. (2018). Mode division multiplexing based on ring core optical fibers. IEEE Journal of Quantum Electronics,54(5), 1–18.

    Article  Google Scholar 

  14. 14.

    Fazea, Y., & Amphawan, A. (2016). 40Gbit/s MDM-WDM Laguerre–Gaussian mode with equalization for multimode fiber in access networks. Journal of Optical Communications,39(2), 175–184.

    Article  Google Scholar 

  15. 15.

    Tian, Y., Li, J., Wu, Z., Chen, Y., Zhu, P., Tang, R., et al. (2017). Wavelength-interleaved MDM-WDM transmission over weakly-coupled FMF. Optics Express,25, 16603–16617.

    Article  Google Scholar 

  16. 16.

    Li, J., Wu, Z., Ge, D., et al. (2019). Weakly-coupled mode division multiplexing over conventional multi-mode fiber with intensity modulation and direct detection. Frontiers of Optoelectronics,12, 31.

    Article  Google Scholar 

  17. 17.

    Singh, M. & Malhotra, J. (2019). 2 × 10 Gbit/s–10 GHz radio over free space optics transmission system incorporating mode division multiplexing of Hermite Gaussian Modes. Journal of Optical Communications (ahead of print).

  18. 18.

    Singh, M., & Malhotra, J. (2019). Long-reach high-capacity hybrid MDM-OFDM-FSO transmission link under the effect of atmospheric turbulence. Wireless Personal Communications,107, 1–23.

    Article  Google Scholar 

  19. 19.

    Singh, M., & Malhotra, J. (2019). Performance comparison of high-speed long-reach mode division multiplexing based-radio over free space optics transmission system using different modulation formats under the effect of atmospheric turbulence. Optical Engineering,58(4), 046112.

    Article  Google Scholar 

  20. 20.

    Gupta, R., & Kaler, R. (2016). Performance comparison of pre-, boost-, and inline multimode erbium-doped fiber amplifier configurations to boost mode division multiplexed multimode fiber link. Optical Engineering,55(5), 056102.

    Article  Google Scholar 

  21. 21.

    Gupta, R., & Kaler, R. (2018). Performance investigation of high capacity 10 Tb/s LP-MDM-WDM over multimode fiber link for short reach applications. Optoelectronics and Advanced Materials-Rapid Communications,12(7-8), 441–446.

    Google Scholar 

  22. 22.

    Singh, M., & Malhotra, J. (2019). Performance comparison of different modulation schemes in high-speed MDM based radio over FSO transmission link under the effect of atmospheric turbulence using aperture averaging. Wireless Personal Communications. https://doi.org/10.1007/s11277-019-06886-x.

    Article  Google Scholar 

  23. 23.

    Singh, M., & Malhotra, J. (2019). Performance comparison of 2 × 20 Gbit/s-40 GHz OFDM based RoFSO transmission link incorporating MDM of Hermite Gaussian modes using different modulation schemes. Wireless Personal Communications, 110, 699–711. https://doi.org/10.1007/s11277-019-06750-y.

    Article  Google Scholar 

  24. 24.

    Singh, M., & Malhotra, J. (2019). Enhanced performance of 40Gbit/s-80 GHz OFDM based radio over FSO transmission link incorporating mode division multiplexing under strong atmospheric turbulence. Optoelectronics and Advanced Materials—Rapid Communications,13, 437–447.

    Google Scholar 

  25. 25.

    Singh, M., & Malhotra, J. (2019). Performance comparison of M-QAM and DQPSK modulation schemes in a 2 × 20 Gbit/s-40 GHz hybrid MDM-OFDM based radio over FSO transmission system. Photonic Network Communications,38, 1–12.

    Article  Google Scholar 

  26. 26.

    Singh, M., & Malhotra, J. (2019). Performance comparison of high-speed long-reach mode division multiplexing based radio over free space optics transmission system using different modulation formats under the effect of atmospheric turbulence. Optical Engineering-SPIE,58(4), 046112.

    Google Scholar 

  27. 27.

    Singh, M., & Malhotra, J. (2019). Long-reach high-capacity hybrid MDM-OFDM-FSO transmission link under the effect of atmospheric turbulence. Wireless Personal Communications,107(4), 1549–1571.

    Article  Google Scholar 

  28. 28.

    Singh, M., & Malhotra, J. (2019). 2 × 10 Gbit/s-10 GHz radio over free space optics transmission system incorporating mode division multiplexing of Hermite Gaussian modes. Journal of Optical Communications (accepted).

  29. 29.

    Krishnan, P., & Sriram, D. (2014). Performance analysis of free space optical systems employing binary polarization shift keying signaling over gamma–gamma channel with pointing errors. Optical Engineering,53(7), 076105.

    Article  Google Scholar 

  30. 30.

    Hong, Y., Yuan, X., Zhang, Y., Hong, Y., & Ma, H. (2015). Performance of FSO systems employing hybrid PolSK-PPM-MQAM modulation over gamma–gamma channel. In C. Lu, J. Luo, Y. Ji, K. Kitayama, H. Tam, K. Xu, P. Ghiggino, & N. Wada (Eds.), Asia communications and photonics conference 2015, OSA Technical Digest (online) (Optical Society of America, 2015), paper ASu2A.90.

  31. 31.

    Prabu, K., Cheepalli, S., & Kumar, D. S. (2014). Analysis of PolSK based FSO system using wavelength and time diversity over strong atmospheric turbulence with pointing errors. Optics Communications,324, 318–323.

    Article  Google Scholar 

  32. 32.

    Bai, F., Su, Y., & Sato, T. (2015). Performance analysis of polarization modulated directdetection optical CDMA systems over turbulent FSO linksmodeled by the Gamma-Gamma distribution. Photonics,2(1), 139–155.

    Article  Google Scholar 

  33. 33.

    Almarzooqi, A., Swamidoss, I., AlMansoori, A. A., & Sayadi, S. (2019) BER analysis of FSO communication link over UAE weather conditions for UAV applications. In Proceedings of SPIE 11153, environmental effects on light propagation and adaptive systems II, 111530 J.

  34. 34.

    Ghatak, A., & Thyagarajan, K. (1998). An introduction to fiber optics. Cambridge: Cambridge University Press.

    Book  Google Scholar 

  35. 35.

    Ghasssemlooy, Z., Popoola, W., & Rajbhandari, S. (2013). Optical wireless communications: System and channel modeling with MATLAB. New York: CRC Press.

    Google Scholar 

  36. 36.

    Soni, G., & Malhotra, J. (2012). Impact of beam divergence on the performance of free space optical system. International Journal of Scientific and Research Publications,2(2), 1–5.

    Article  Google Scholar 

  37. 37.

    Nabousli, M., Sizun, H., & Fornel, F. (2004). Fog attenuation prediction for optical and infrared rays. Optical Engineering,43(2), 319–329.

    Article  Google Scholar 

  38. 38.

    Kim, I., Mcarthur, B., & Korevaar, E. (2006). Comparison of laser beam propagation at 785 and 1550 nm in fog and haze for optical wireless communications. Proceedings of SPIE Optical Wireless Communication,6303, 26–37.

    Google Scholar 

  39. 39.

    Vats, A., & Kaushal, H. (2014). Analysis of free space optical link in turbulent atmosphere. Optik-International Journal of Light and Electron Optics,125(12), 2776–2779.

    Article  Google Scholar 

  40. 40.

    Ghassemlooy, Z., Tang, X., & Rajbhandari, S. (2012). Experimental investigation of polarization modulated free space optical communication with direct detection in turbulence channel. IET Communications,6, 1489–1494.

    MathSciNet  Article  Google Scholar 

  41. 41.

    Prabhu, K., Cheepalli, S., & Kumar, D. (2014). Analysis of PolSK based FSO system using wavelength and time diversity over strong atmospheric turbulence with pointing errors. Optical Communications,324, 318–323.

    Article  Google Scholar 

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Acknowledgements

The authors are thankful to Dr. T.S. Sidhu, Director, SBSSTC, Ferozepur for providing opportunity and support to complete the work as effective. The authors would also like to express their sincere thanks to Prof. Dr. Truong Khang Nguyen, Division of Computational Physics, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam for giving his value suggestion, comments and support to complete this work as effective.

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Correspondence to Vigneswaran Dhasarathan.

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Grover, A., Sheetal, A. & Dhasarathan, V. Performance analysis of mode division multiplexing based free space optics system incorporating on–off keying and polarization shift keying under dynamic environmental conditions. Wireless Netw 26, 3439–3449 (2020). https://doi.org/10.1007/s11276-020-02275-6

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Keywords

  • Mode division multiplexing
  • Free space optics
  • Polarization shift keying
  • Atmospheric attenuation
  • Bit error rate