Impact of Practical Beam Shapes on the Performance of Free Space Optical

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Yavari Manesh, Mohammad | 2013

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 44696 (05)
University: Sharif University of Technology
Department: Electrical Engineering
Advisor(s): Marvasti, Farokh
Abstract:
Free-Space Optical (FSO) communication has received an increasing attention in recent years with its ability to achieve ultra-high data rates (at the order of multiple gigabits per second) over unlicensed optical spectrum. A major degrading factor, particulary in long links is the stmospheric turbulence induced fading. In this thesis, we use spatial diversity and use and make several contributions to the performance analysis of MIMO (Mutli Input-Multi Output) FSO systems. We use MRC(Maximum Ratio Combining),EGC(Equal Gain Combinig),SC(Selection Combinig) and yield significant performance improvments. Finally we import the charectristic of different beamshapes and yields performance improvement
Keywords:
Free Space Optical System ; Multiple Input Multiple Output (MIMO)System ; Beam Shape ; Maximal-Ratio Combining (MRC)Receiver ; Equal Gain Combining (EGC)

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