Abstract
Wavelet packet transform-based optical OFDM (WPT-OFDM) systems can be used
as an alternative approach to the conventional optical OFDM systems. In this
paper, we investigate the performance and limitation of real WPT-OFDM
systems. Its double-sideband characteristic makes it sensitive to spectrally
non-symmetric dispersion such as polarization-mode dispersion (PMD).
Simulations of dual-polarization WPT-OFDM transmission are carried out in
the presence of PMD, and compared with conventional Fourier transform-based
optical OFDM (FT-OFDM). The results show that WPT-OFDM is very sensitive to
PMD, incurring 1-dB penalty at 5–11 ps DGD for 112-Gb/s
dual-polarization transmission. PAPR and nonlinearity performance of
WPT-OFDM are also analyzed in this work. We show that the Haar wavelet has
0.9-dB improvement in nonlinear launch power limit compared with FT-OFDM $({\rm CP}=1/8)$ in a conventional transmission dispersion configuration where
inline dispersion is fully compensated by a dispersion-compensation-fiber
(DCF).
© 2010 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription