Title :
Performance of Adaptive Optical Transmission by Orthogonal Frequency-Shift Keying
Author :
Amin, A.A. ; Gao, Guanjun ; Chen, Xi ; Li, An ; Shieh, William
Author_Institution :
Univ. of Melbourne, Parkville, VIC, Australia
fDate :
7/1/2012 12:00:00 AM
Abstract :
We evaluate a flexible, low-complexity adaptive data modulation method achieved by encoding bits on the subcarrier positions in coherent optical orthogonal frequency-division multiplexing (OFDM) transmission systems. The proposed orthogonal frequency-shift-keying transmission method shows comparable or better receiver sensitivity as well as improved nonlinearity tolerance compared to polarization switching or partial subcarrier filling OFDM methods at equal data rates.
Keywords :
OFDM modulation; adaptive modulation; adaptive optics; optical communication; optical receivers; optical switches; adaptive optical transmission; coherent optical orthogonal frequency-division multiplexing transmission systems; encoding bits; equal data rates; low-complexity adaptive data modulation method; nonlinearity tolerance; orthogonal frequency-shift keying; partial subcarrier filling OFDM methods; polarization switching; receiver sensitivity; subcarrier positions; Frequency shift keying; OFDM; Optical receivers; Phase shift keying; Sensitivity; Adaptive modulation; frequency-shift keying; orthogonal frequency-division multiplexing (OFDM); polarization switching (PS);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2012.2194276
