A Feedforward Partial Phase Noise Mitigation in the Time-Domain using Cyclic Prefix for CO-OFDM Systems

We propose a blind feedforward phase noise mitigation method in the time-domain for a coherent optical orthogonal frequency division multiplexing (CO-OFDM) systems. By exploiting the redundancy of the cyclic prefix (CP), the proposed scheme acquires the overall phase noise difference information during an OFDM block and attempts to mitigate the phase noise in the time domain using a linear approximation. The proposed algorithm mitigates common phase error (CPE) and inter-carrier-interference (ICI) due to phase noise simultaneously, improving the system performance, especially when decision-directed equalizers are used. The simulation results demonstrate the effectiveness of the proposed feedforward phase noise mitigation approach in time domain.

[1]  Yeheskel Bar-Ness,et al.  A phase noise suppression algorithm for OFDM-based WLANs , 2002, IEEE Communications Letters.

[2]  Wonzoo Chung.  A Matched Filtering Approach for Phase Noise Suppression in CO-OFDM Systems , 2010, IEEE Photonics Technology Letters.

[3]  William A. Sethares,et al.  A blind adaptive TEQ for multicarrier systems , 2002, IEEE Signal Processing Letters.

[4]  William Shieh,et al.  Coherent optical orthogonal frequency division multiplexing , 2006 .

[5]  Wolfgang Rave,et al.  Effects of Phase Noise on OFDM Systems With and Without PLL: Characterization and Compensation , 2007, IEEE Transactions on Communications.

[6]  M. E. Mousa-Pasandi,et al.  Zero-overhead phase noise compensation via decision-directed phase equalizer for coherent optical OFDM. , 2010, Optics express.

[7]  Naofal Al-Dhahir,et al.  A Non-Iterative Technique for Phase Noise ICI Mitigation in Packet-Based OFDM Systems , 2010, IEEE Transactions on Signal Processing.

[8]  Y Tang,et al.  Coherent optical OFDM: theory and design. , 2008, Optics express.

[9]  Wonzoo Chung,et al.  Non-data Aided Timing Phase Recovery Scheme for Digital Equalization of Chromatic Dispersion and Polarization Mode Dispersion , 2009 .

[10]  Noniterative Interpolation-Based Partial Phase Noise ICI Mitigation for CO-OFDM Transport Systems , 2011, IEEE Photonics Technology Letters.

[11]  Bane Vasic,et al.  Orthogonal frequency division multiplexing for high-speed optical transmission. , 2006, Optics express.

[12]  Wonzoo Chung,et al.  Non-Data-Aided Phase Noise Suppression Scheme for CO-OFDM Systems , 2013, IEEE Photonics Technology Letters.

[13]  Jae Hoon Lee,et al.  An Electronic Domain Chromatic Dispersion Monitoring Scheme Insensitive to OSNR Using Kurtosis , 2008 .