Title :
Power efficient optical OFDM
Author :
Armstrong, J. ; Lowery, A.J.
Author_Institution :
Dept. of Electr. & Comput. Syst. Eng., Monash Univ., Clayton, Vic., Australia
fDate :
3/16/2006 12:00:00 AM
Abstract :
A new technique for using orthogonal frequency division multiplexing (OFDM) in optical systems is presented. Clipped OFDM is derived from a bipolar OFDM waveform by setting the negative values to zero. It has an optical efficiency 8 dB better than DC biased OFDM. If only the odd OFDM subcarriers are modulated, the clipping noise is orthogonal to the wanted signal.
Keywords :
OFDM modulation; optical communication; optical modulation; subcarrier multiplexing; OFDM subcarriers; bipolar OFDM waveform; clipped OFDM; clipping noise; optical communication; optical fibre systems; optical wireless systems; orthogonal frequency division multiplexing; power efficient optical OFDM;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20063636
