On the emulation of narrowband powerline communication noise scenario

This paper presents an implementation of narrowband powerline channel (NB-PLC) noise model from 40 kHz up to 500 kHz on a digital signal processor (DSP). This implementation represents a major building block in a NB-PLC channel emulator which incorporates channel attenuation and noise scenario. A complete noise model is proposed combining the cyclostationary noise model and a stochastic model for aperiodic noise. The spectral and temporal characteristics of cyclostationary component define a possible linear filters based implementation whereas; the aperiodic noise is established via statistical distributions of its parameters. The exponentially decayed waveform model is adopted for this type of noise. Proposed implementation is optimized and tuned to be embedded on a DSP platform with real timing constraint.