Title :
Extended Kalman filtering for simultaneous phase and amplitude noise mitigation in WDM systems
Author :
Pakala, Lalitha ; Schmauss, Bernhard
Author_Institution :
Inst. of Microwaves & Photonics (LHFT), Univ. of Erlangen-Nuremberg, Erlangen, Germany
Abstract :
The proposed carrier phase and amplitude noise estimation (CPANE) algorithm using extended Kalman filter (EKF) has been employed for joint mitigation of linear and non-linear phase noise and amplified spontaneous emission (ASE) noise in wavelength division multiplexing (WDM) systems. Numerical investigations on polarization multiplexed (PM) 16-quadrature amplitude modulation (16-QAM) 28 Gbaud/s WDM systems show that the proposed EKF technique outperforms the other considered carrier phase estimation (CPE) methods in mitigating inter and intra-channel non-linearities, laser phase noise and ASE noise.
Keywords :
Kalman filters; estimation theory; interference (signal); nonlinear filters; phase noise; quadrature amplitude modulation; wavelength division multiplexing; 16-QAM; 16-quadrature amplitude modulation; ASE; CPANE algorithm; CPE methods; EKF; WDM systems; amplified spontaneous emission; amplitude noise mitigation; carrier phase and amplitude noise estimation algorithm; carrier phase estimation methods; extended Kalman filtering; phase noise mitigation; wavelength division multiplexing systems; Kalman filters; Mathematical model; Modulation; Phase estimation; Phase noise; Wavelength division multiplexing; ASE noise; Digital signal processing; Phase noise; WDM systems; extended Kalman filter; nonlinear mitigation;
Conference_Titel :
Transparent Optical Networks (ICTON), 2015 17th International Conference on
Conference_Location :
Budapest
DOI :
10.1109/ICTON.2015.7193301
