Performance analysis of Free Space Optical links encoded using Luby Transform codes

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dc.contributor.authorPrakash, G.
dc.contributor.authorKulkarni, M.
dc.contributor.authorSripati, U.
dc.contributor.authorKalyanpur, M.N.
dc.date.accessioned2026-02-06T06:40:21Z
dc.date.issued2012
dc.description.abstractFree Space Optical (FSO) communication is an emerging transmission technique to transmit high data rates without using cables. This technology is expected to revolutionize the present communication system architectures both in the terrestrial and the in -space architecture. Atmospheric effects can significantly degrade the performance of FSO systems. This reduces the SNR and leads to impaired performance. FSO channels can be modeled using Gamma-Gamma, Weibull, Log-Normal, K distribution functions. Error control codes can help to mitigate atmospheric turbulence induced signal fading in free space optical communication links. Luby Transform codes belong to a class of error control codes called Fountain codes and are meant for erasure channels. In this paper, we propose encoding FSO links with Luby Transform (LT) codes for error channels. Decoding is done using belief propagation with Log Likelihood Ratio and results are obtained for different modulation schemes under different channel distributions. © 2012 IEEE.
dc.identifier.citationProceedings - 2012 International Conference on Communication, Information and Computing Technology, ICCICT 2012, 2012, Vol., , p. -
dc.identifier.urihttps://doi.org/10.1109/ICCICT.2012.6398133
dc.identifier.urihttps://idr.nitk.ac.in/handle/123456789/32877
dc.subjectbelief propagation
dc.subjectDistribution functions
dc.subjectFree space optics
dc.subjectLog Likelihood Ratio
dc.subjectLuby Transform codes
dc.subjectMessage passing
dc.subjectscintillation
dc.titlePerformance analysis of Free Space Optical links encoded using Luby Transform codes

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