منابع مشابه
Coherent optical OFDM: theory and design.
Coherent optical OFDM (CO-OFDM) has recently been proposed and the proof-of-concept transmission experiments have shown its extreme robustness against chromatic dispersion and polarization mode dispersion. In this paper, we first review the theoretical fundamentals for CO-OFDM and its channel model in a 2x2 MIMO-OFDM representation. We then present various design choices for CO-OFDM systems and...
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We consider application of the discrete Fourier transform-spread orthogonal frequency-division multiplexing (DFT-spread OFDM) technique to high-speed fiber optic communications. The DFT-spread OFDM is a form of single-carrier technique that possesses almost all advantages of the multicarrier OFDM technique (such as high spectral efficiency, flexible bandwidth allocation, low sampling rate and l...
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Orthogonal frequency division multiplexing (OFDM) is an attractive modulation format that recently received a lot of attention in the fiber-optic community. The main advantage of optical OFDM is that it can cope with virtually unlimited amount of inter symbol interference (ISI). In high-speed optical transmission systems, ISI is caused for instance by chromatic dispersion and it is serious issu...
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This work presents the combining of 2 methods, which are fast Fourier transform spread (FFT-spread) and 2×2 space time block codes (STBC), to boost the system performance for coherent optical orthogonal frequency division multiplexing (COOFDM) communication systems which is faster than the discrete Fourier transform spread (DFT-spread). The system performances are usually measured by the unit o...
متن کاملStudy and Analysis of Window Synchronization in Coherent Optical OFDM
To analyse the errors that are involved during transmission through optical fibers using OFDM techniques. We analyze the errors that affect the long haul transmission of data with high data rate in optical fibers. These errors are termed synchronization errors. We determine various parameters that affect the performance and use them for comparison and analysis. KeywordsOFDM – Orthogonal frequen...
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ژورنال
عنوان ژورنال: Optics Express
سال: 2008
ISSN: 1094-4087
DOI: 10.1364/oe.16.000841