Abstract
Free space optical communication (FSO) is featured as a solution to the massive demand for large bandwidth and last-mile connectivity. However, the link performance degrades due to atmospheric turbulence. Like RF wireless communication link, the diversity and combining techniques were found effective in FSO link too. This paper compares BER performance of various diversity and combining techniques. We have simulated maximum ratio transmission (MRT) and transmit aperture selection (TAS) technique as transmit diversity scheme. For the receive diversity techniques, we have used selection combining (SC), maximal ratio combining (MRC), and equal gain combining (EGC). We have also considered MIMO configuration and wavelength diversity. These all techniques are compared for various diversity orders and different strengths of atmospheric turbulence. We found that maximum ratio combining and maximum ratio transmission schemes have the best BER performance among all diversity techniques. However, the MRT technique requires additional resources to make CSI information available at the transmitter.
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References
Khalighi MA, Uysal M (2014) Survey on free space optical communication: a communication theory perspective. IEEE Commun Surv Tutor 16(4):2231–2258
Saeed RA, Abbas EB (2018) Performance evaluation of mimo fso communication with gamma-gamma turbulence channel using diversity techniques. In: 2018 international conference on computer, control, electrical, and electronics engineering (ICCCEEE). IEEE, pp 1–5
Kaur K, Miglani R, Malhotra JS (2016) The gamma-gamma channel model-a survey. Indian J Sci Technol 9(47)
Al-Habash A, Andrews LC, Phillips RL (2001) Mathematical model for the irradiance probability density function of a laser beam propagating through turbulent media. Opt Eng 40(8):1554–1563
Jurado-Navas A, Garrido-Balsells JM, Paris JF, Puerta-Notario A, Awrejcewicz J (2011) A unifying statistical model for atmospheric optical scintillation. Numer Simul Phys Eng Process 181
Barrios R, Dios F (2012) Exponentiated Weibull distribution family under aperture averaging for gaussian beam waves. Opt Express 20(12):13,055–13,064
Bayaki E, Schober R, Mallik RK (2009) Performance analysis of mimo free-space optical systems in gamma-gamma fading. IEEE Trans Commun 57(11):3415–3424
Bhatnagar MR (2015) A one bit feedback based beamforming scheme for fso miso system over gamma-gamma fading. IEEE Trans Commun 63(4):1306–1318
Shah D, Kothari D, Ghosh A (2016) Performance of free-space optical link with wavelength diversity over exponentiated Weibull channel. Opt Eng 55(11):116,112
Nistazakis HE, Tombras GS (2012) On the use of wavelength and time diversity in optical wireless communication systems over gamma-gamma turbulence channels. Opt Laser Technol 44(7):2088–2094
Navidpour SM, Uysal M, Kavehrad M (2007) BER performance of free-space optical transmission with spatial diversity. IEEE Trans Wirel Commun 6(8):2813–2819
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Joshi, H., Gupta, S. (2023). Performance Comparison of Different Diversity and Combining Techniques Over Gamma–Gamma FSO Link. In: Dhavse, R., Kumar, V., Monteleone, S. (eds) Emerging Technology Trends in Electronics, Communication and Networking. Lecture Notes in Electrical Engineering, vol 952. Springer, Singapore. https://doi.org/10.1007/978-981-19-6737-5_15
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DOI: https://doi.org/10.1007/978-981-19-6737-5_15
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