title: Investigation of spectrally shaped DFTS-OFDM for long haul transmission.
abstract: DFTS-OFDM has been proposed recently as an alternative to coherent optical OFDM due to its improved transmission performance. This paper proposes spectral shaping for DFTS-OFDM which reduces the PAPR leading to further improvement in nonlinear tolerance. It is shown that for both SSMF and LEAF, the optimized spectrally shaped DFTS-OFDM outperforms DFTS-OFDM for dispersion managed and unmanaged links by ~10.8% and ~6.8%, respectively. The number of bands and the excess bandwidth parameters are also investigated to optimize the transmission performance.
authors.affiliation: Christian-Albrechts-Universität zu Kiel, Germany. asu@tf.uni-kiel.de
authors.forename: Susmita
authors.initials: S
authors.lastname: Adhikari
authors.forename: Sander
authors.initials: S
authors.lastname: Jansen
authors.forename: Maxim
authors.initials: M
authors.lastname: Kuschnerov
authors.forename: Beril
authors.initials: B
authors.lastname: Inan
authors.forename: Marc
authors.initials: M
authors.lastname: Bohn
authors.forename: Werner
authors.initials: W
authors.lastname: Rosenkranz