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A comparative study between LMS and PSO algorithms on the optical channel estimation for radio over fiber systems
Authors:Ayhan Yazgan  I Hakki Cavdar
Institution:Department of Electrical Electronics Engineering, Karadeniz Technical University, 61080 Trabzon, Turkey
Abstract:In this paper the particle swarm optimization (PSO) and least mean square (LMS) algorithms are comparatively studied to estimate the optical communication channel parameters for radio over fiber systems. It is observed that especially in low noise one tap optical channels, the convergence of LMS algorithm is approximately same with PSO algorithm. On the other hand, as a communication medium, selecting high noisy fiber optical channels or free space optical channels; PSO reaches better mean square error values. The computational complexity which is one of the most important features for optimization algorithms has also been taken into account.
Keywords:Radio over fiber systems  Optical channel estimation  Particle swarm optimization  Least means square
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