A computationally efficient IFFT implementation for asymmetrically clipped optical OFDM transmitter is proposed and implemented in a Field-Programmable Gate Array. The overall computational complexity ...

While assuming channel knowledge on the transmitter side, this approach allows basic OFDM signal processing to be used on the receiver side for channel estimation, equalization, and synchronization.

The OFDM transmitter transforms the bit-stream information into a sequence of PSK or QAM symbols, and then converts the sequence of serial symbols to a parallel symbol stream. Every N of the converted ...