Abstract
Free Space Optics (FSO) is an evolving branch of communication in which light signal is transmitted through free space or atmosphere which may be turbulent in nature. Due to this turbulence, the signal deteriorates resulting in low SNR and high BER. This paper focuses on finding the relationships among BER, SNR, outage probability, and power margin with respect to Eb/No (the ratio of energy per bit to the noise power spectral density) by considering Log-normal channel in FSO system. These relations are derived using different modulation techniques viz. BPSK, QPSK, and 16-QAM. It has been observed that the power margin required to enhance the power of distorted signal at receiver end is significant for Eb/No less than 8 dB. Moreover, QPSK turns out to be the best modulation scheme among the three in the FSO system.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
Willebrand, H., Ghumman, B.S.: Free Space Optics: Enabling Optical Connectivity in Today’s Network. SAMS Publishing, Indianapolis (2002)
Ghassemlooy, Z., Hayes, A.R., Seed, N.L., Kaluarachchi, E.D.: Digital pulse interval modulation for optical communication. IEEE Commun. Mag. 36(12), 95–99 (1998)
Ghassemlooy, Z., Popoola, W., Rajbhandari, S.: Optical Wireless Communications: System and Channel Modelling with MATLAB. CRC Press, Boca Raton (2013)
Mansour, A., Mesleh, R., Abaza, M.: New challenges in wireless and free space optical communications. Opt. Lasers Eng. 89, 95–108 (2017)
Kaushal, H., Kaddoum, G.: Optical communication in space: challenges and mitigation techniques. IEEE Commun. Surv. Tutor. 19(1), 57–96 (2017)
Al-Kinani, A., Wang, C.X., Zhou, L., Zhang, W.: Optical wireless communication channel measurements and models. IEEE Commun. Surv. Tutor. 20(3), 1939–1962 (2018)
Li, J., Liu, J.Q., Tylor, D.P.: Optical communication using subcarrier PSK intensity modulation through atmospheric turbulence channels. IEEE Trans. Commun. 55(8), 1598–1606 (2007)
Khalighi MA, Uysal M.: Survey on free space optical communication: a communication theory perspective. IEEE Commun. Surv. Tutor. 16(4), 2231–2258 (2013)
Vishwanathan, M.: Simulation of Digital Communication Systems Using MATLAB. Published by Mathuranathan Vishwanathan at Amazon. (2013)
Proakis, J.G., Salehi, M.: Digital Communications, 5th edn. McGraw-Hill, New York (2007)
Chan, V.W.S.: Free space optical communications. IEEE J. Light. Technol. 24(12), 4750–4762 (2006)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2020 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Singh, H., Sappal, A.S. (2020). Performance Analysis of FSO Link in Log-Normal Channel Using Different Modulation Schemes. In: Choudhury, S., Mishra, R., Mishra, R., Kumar, A. (eds) Intelligent Communication, Control and Devices. Advances in Intelligent Systems and Computing, vol 989. Springer, Singapore. https://doi.org/10.1007/978-981-13-8618-3_16
Download citation
DOI: https://doi.org/10.1007/978-981-13-8618-3_16
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-13-8617-6
Online ISBN: 978-981-13-8618-3
eBook Packages: Intelligent Technologies and RoboticsIntelligent Technologies and Robotics (R0)