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- W2550438250 abstract "In this paper, we propose a space time code construction with a symbol rate of two for free space optical multiple input multiple output (FSO-MIMO) communication systems. Unlike the radio-frequency space time coding design that deals with complex symbols holding phase and magnitude information, the phase detection in wireless optical communications remains very challenging. This restricts optical MIMO codes to carry positive magnitude information belonging to a finite range. To meet these requirements, we propose to design the FSO-MIMO codes considering first the whole real space $mathbb {R}$ , followed by a bipolar to unipolar conversion to fit in the intensity margin. We consider the MIMO configurations with two or four transmitters (lasers). We base our shape-preserving construction on quadratic extension fields that linearly combine the real symbols to form a full diversity space time code with a symbol rate equal to two. For each configuration, we show how to optimize the choice of the algebraic field numbers to jointly optimize the non-vanishing code determinant and the bipolar to unipolar attenuation factor." @default.
- W2550438250 created "2016-11-30" @default.
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- W2550438250 date "2017-02-01" @default.
- W2550438250 modified "2023-09-24" @default.
- W2550438250 title "Quadratic Extension Field Codes for Free Space Optical Intensity Communications" @default.
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- W2550438250 doi "https://doi.org/10.1109/tcomm.2016.2631174" @default.
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