title: Non-rectangular perfect reconstruction pulse shaping based ICI reduction in CO-OFDM.
abstract: In this paper, we propose to increase residual carrier frequency offset tolerance based on short perfect reconstruction pulse shaping for coherent optical-orthogonal frequency division multiplexing. The proposed method suppresses the residual carrier frequency offset induced penalty at the receiver, without requiring any additional overhead and exhaustive signal processing. The Q-factor improvement contributed by the proposed method is 1.6 dB and 1.8 dB for time-frequency localization maximization and out-of-band energy minimization pulse shapes, respectively. Finally, the transmission span gain under the influence of residual carrier frequency offset is ~62% with out-of-band energy minimization pulse shape.
authors: Thavamaran
authors: T
authors: Kanesan
authors: Son Thai
authors: ST
authors: Le
authors: Damien
authors: D
authors: Roque
authors: Andrew D
authors: AD
authors: Ellis