Powerline networks are recently being used for broadband data transmission such as internet, imag... more Powerline networks are recently being used for broadband data transmission such as internet, image and video delivery. Improving the quality of broad transmission over PLC channel is of great importance and an area of current interests. In this paper, we propose a novel estimation and noise mitigation method for power line communication (PLC) systems in impulsive noise environments. For this purpose, an adaptive recursive noise compensator (ARNC) algorithm is proposed, based on an iterative estimation of the impulsive noise, using the signal to impulsive noise power ratio (SINR), and the peak to average power ratio (PAPR) in the time domain after channel equalization and OFDM demodulation. A new clipping/blanking function is introduced to estimate and detect the impulsive bursts. When bit error rate (BER) and mean square error (MSE) are evaluated, the proposed method achieves high performance in an attenuated 15-paths condition. The signal-to-noise (SNR) improvements obtained by the proposed algorithm can achieve 11–18 dB under Eb/No=0 dB and more than 12 dB at BER = 10 −3 for OFDM signal using quadratic phase-shift keying (QPSK) modulation.
2003 IEEE International Workshop on Workload Characterization (IEEE Cat. No.03EX775), 2000
ABSTRACT In this paper, we present a chaos control algorithm, based on the OGY method, to control... more ABSTRACT In this paper, we present a chaos control algorithm, based on the OGY method, to control chaotic behavior in high order dynamical systems. To begin with, once chaotic behavior identified on the bifurcation diagram, studying the so-called Poincare sections enable determining fixed points and the effect of small changes in the control parameter on trajectory. Introduction of a stabilizer parameter in the control law, keeps the dynamical properties and maintains them on a cyclic trajectory. The effectiveness of the proposed method is tested by numerical examples on Lorenz and Rossler systems.
In this paper, a predictive control method is suggested for chaos control in continuous-time syst... more In this paper, a predictive control method is suggested for chaos control in continuous-time systems. This method combines the delayed feedback control of high order continuous-time chaotic systems with the prediction-based method of discrete-time chaotic systems. Moreover, we give necessary and sufficient conditions for exponential stabilization of unstable fixed points by the proposed method. Both control performance and system sensitivity
... Permissions & Reprints. Short communication. Predictive synchronization of Chaotic Satell... more ... Permissions & Reprints. Short communication. Predictive synchronization of Chaotic Satellites Systems. Djaouida Sadaoui a , Corresponding Author Contact Information , E-mail The Corresponding Author , Abdelkrim Boukabou b , Nadjim Merabtine a and Malek Benslama a. ...
Powerline networks are recently being used for broadband data transmission such as internet, imag... more Powerline networks are recently being used for broadband data transmission such as internet, image and video delivery. Improving the quality of broad transmission over PLC channel is of great importance and an area of current interests. In this paper, we propose a novel estimation and noise mitigation method for power line communication (PLC) systems in impulsive noise environments. For this purpose, an adaptive recursive noise compensator (ARNC) algorithm is proposed, based on an iterative estimation of the impulsive noise, using the signal to impulsive noise power ratio (SINR), and the peak to average power ratio (PAPR) in the time domain after channel equalization and OFDM demodulation. A new clipping/blanking function is introduced to estimate and detect the impulsive bursts. When bit error rate (BER) and mean square error (MSE) are evaluated, the proposed method achieves high performance in an attenuated 15-paths condition. The signal-to-noise (SNR) improvements obtained by the proposed algorithm can achieve 11–18 dB under Eb/No=0 dB and more than 12 dB at BER = 10 −3 for OFDM signal using quadratic phase-shift keying (QPSK) modulation.
2003 IEEE International Workshop on Workload Characterization (IEEE Cat. No.03EX775), 2000
ABSTRACT In this paper, we present a chaos control algorithm, based on the OGY method, to control... more ABSTRACT In this paper, we present a chaos control algorithm, based on the OGY method, to control chaotic behavior in high order dynamical systems. To begin with, once chaotic behavior identified on the bifurcation diagram, studying the so-called Poincare sections enable determining fixed points and the effect of small changes in the control parameter on trajectory. Introduction of a stabilizer parameter in the control law, keeps the dynamical properties and maintains them on a cyclic trajectory. The effectiveness of the proposed method is tested by numerical examples on Lorenz and Rossler systems.
In this paper, a predictive control method is suggested for chaos control in continuous-time syst... more In this paper, a predictive control method is suggested for chaos control in continuous-time systems. This method combines the delayed feedback control of high order continuous-time chaotic systems with the prediction-based method of discrete-time chaotic systems. Moreover, we give necessary and sufficient conditions for exponential stabilization of unstable fixed points by the proposed method. Both control performance and system sensitivity
... Permissions & Reprints. Short communication. Predictive synchronization of Chaotic Satell... more ... Permissions & Reprints. Short communication. Predictive synchronization of Chaotic Satellites Systems. Djaouida Sadaoui a , Corresponding Author Contact Information , E-mail The Corresponding Author , Abdelkrim Boukabou b , Nadjim Merabtine a and Malek Benslama a. ...
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