Optical Wireless OFDM System on FPGA: Study of LED Nonlinearity Effects


Nonlinearities can drastically degrade the performance of OFDM (orthogonal frequency division multiplexing) based optical wireless (OW) communication systems using intensity modulation (IM) of the optical carrier. The light emitting diode (LED) transfer function distorts the signal amplitude and forces the lower signal peaks to be clipped at the LED turn-on… (More)
DOI: 10.1109/VETECS.2011.5956691


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