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We propose a robust and practical synchronization technique for high-speed real-time optical OFDM. The synchronization is achieved using training-sequences and correlation in the frequency domain. We show that this method is robust at low SNR.
We have investigated real-time DSP algorithms implementing electronic predistortion and optical OFDM. These studies have been carried out through experiments with FPGA-based transmitters, and the design and post-synthesis simulations of transceiver ASICs.
The effects of different system parameters on the performance of real-time optical orthogonal frequency-division-multiplexing (OFDM) transceivers are investigated. Numerical simulations are carried out to search for the optimum arithmetic precision of the fast Fourier transform and its inverse (FFT/IFFT) which are key components in optical OFDM transceivers.<?Pub _bookmark Command="[Quick...
We select the optimum design parameters for real-time optical OFDM transceivers running at 25 Gb/s and analyze power consumption and ASIC footprint for a variety of configurations based on synthesis for a 65nm standard-cell library.
We report a real-time optical OFDM transmitter with the highest sampling rate to date. Generation and transmission of an 8.36Gb/s digitally up-converted single sideband OFDM signal over 1600km of uncompensated fiber with a BER≪10−3 was achieved.
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