Simpler than FRESH Filter: A Parametric Approach for Cyclostationary Noise Generation in NB-PLC
IEEE Communications Letters(2020)
摘要
A key challenge in narrowband power line communications (NB-PLC) is the mitigation of impairments introduced by the correlated cyclostationary noise. The frequency-shift (FRESH) filtering approach has been recently proposed to reproduce a cyclostationary NB-PLC noise with characteristics similar to those obtained from field measurements. In this letter, we use a classification of the noise generated by the FRESH filter into three classes to propose a simple method to produce noise samples with statistics similar to those obtained at its output. The approach consists of parametrized spectral and temporal shapings applied to a white Gaussian noise sequence. We validate our proposed method by comparing its generated noise samples with those obtained using the FRESH filter and using measurements in terms of:
${i}$
) normalized mean-squared error between the cyclic auto-correlations;
ii
) bit error rate.
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关键词
OFDM,Noise measurement,Gaussian distribution,Probability density function,Standards,Narrowband,Gaussian noise
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