2017/12/08 by Reza Barazideh, Balasubramaniam Natarajan, Barazideh, Reza +5
Engineering · #Electromagnetic Compatibility and Noise Suppression #FOS: Electrical engineering #Power Line Communications and Noise #Power Quality and Harmonics #Signal Processing (eess.SP) #electronic engineering #information engineering
paper · pdf · doi:10.48550/arxiv.1712.03267
openalex publication_date 2017/12/08 · openalex created_date 2022/10/01 · openalex updated_date 2026/07/28
Asynchronous and cyclostationary impulsive noise can severely impact the\nbit-error-rate (BER) of OFDM-based powerline communication systems. In this\npaper, we analyze an adaptive nonlinear analog front end filter that mitigates\nvarious types of impulsive noise without detrimental effects such as\nself-interference and out-of-band power leakage caused by other nonlinear\napproaches like clipping and blanking. Our proposed Adaptive Nonlinear\nDifferential Limiter (ANDL) is constructed from a linear analog filter by\napplying a feedback-based nonlinearity, controlled by a single resolution\nparameter. We present a simple practical method to find the value of this\nresolution parameter that ensures the mitigation of impulsive without impacting\nthe desired OFDM signal. Unlike many prior approaches for impulsive noise\nmitigation that assume a statistical noise model, ANDL is blind to the exact\nnature of the noise distribution, and is designed to be fully compatible with\nexisting linear front end filters. We demonstrate the potency of ANDL by\nsimulating the OFDM-based narrowband PLC compliant with the IEEE standards. We\nshow that the proposed ANDL outperforms other approaches in reducing the BER in\nimpulsive noise environments.\n