Performance analysis of relay-assisted all-optical FSO networks over strong atmospheric turbulence channels with pointing errors
KAUST DepartmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program
Communication Theory Lab
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AbstractIn this study, we consider a relay-assisted free-space optical communication scheme over strong atmospheric turbulence channels with misalignment-induced pointing errors. The links from the source to the destination are assumed to be all-optical links. Assuming a variable gain relay with amplify-and-forward protocol, the electrical signal at the source is forwarded to the destination with the help of this relay through all-optical links. More specifically, we first present a cumulative density function (CDF) analysis for the end-to-end signal-to-noise ratio. Based on this CDF, the outage probability, bit-error rate, and average capacity of our proposed system are derived. Results show that the system diversity order is related to the minimum value of the channel parameters.
SponsorsThis work was supported in part by the King Abdulaziz City of Science and Technology, the National Natural Science Foundation of China Program under Grants 61372096 and 61320106003, and the Open Research Fund of National Mobile Communications Research Laboratory, Southeast University, under Grant 2014D11.
JournalJournal of Lightwave Technology