Impacts of the Negative-exponential and the K-distribution modeled FSO turbulent links on the theoretical and simulated performance of the distributed diffusion networks

Merging the adaptive networks with the free space optical (FSO) communication technology is a very interesting field of research because by adding the benefits of this technology, the adaptive networks become more efficient, cheap and secure. This is due to the fact that FSO communication uses unregistered visible light bandwidth instead of the overused radio spectrum. However, in spite of all the benefits of FSO communication, this technology suffers from optical noise and turbulence. In this paper, we investigate the exact effect of the negative exponential and k-distribution modeled very strong turbulence conditions on the performance of diffusion adaptive networks. The simulation and theoretical results based on the steady state Mean square deviation (MSD) and Excess mean square Error (EMSE) vlaues show the deteriorating effects of these link models on diffusion networks. The FSO communication technology, while very profitable and applicable, is not always a suitable means of implementing wireless networks. For this reason, we suggested the channel estimation for these conditions.