Mitigation of Coloured Impulsive noise in OFDM receiver

Publikationstyp
Conference Paper
Publikationsdatum
2021-10
Sprache
English
Author
Schaffenroth, Sebastian 
Schmidt, Hans Peter 
Kölpin, Alexander orcid-logo
Institut
Hochfrequenztechnik E-3 
TORE-URI
http://hdl.handle.net/11420/11677
Start Page
43
End Page
48
Citation
IEEE International Symposium on Power Line Communications and its Applications (ISPLC 2021)
Contribution to Conference
IEEE International Symposium on Power Line Communications and its Applications, ISPLC 2021 
Publisher DOI
10.1109/ISPLC52837.2021.9628650
Scopus ID
2-s2.0-85123591224
Power line communication (PLC) in factory and process automation requires real time capabilities. Therefore, robustness is a key feature in industrial communication. For such power line communication, a common scheme is Orthogonal Frequency Division Multiplexing (OFDM). The major source of noise are variable speed drives that generate impulsive noise. OFDM spreads impulsive noise on several sub-carriers and weaken its impact on BER. It is known that with decreasing signal-to-noise ratio (SNR) the BER of all affected sub-carries is rising. There are several non-linear strategies like clipping, nulling and hybrid clipping-nulling to mitigate this impulsive noise. So far, the level of the received samples is used as filter-criterion for these filters. We propose a novel mitigation scheme for coloured impulsive noise based on finite impulse response (FIR) filters. Simulations with coloured impulsive noise show the decreased BER with this novel approach. Furthermore, we measure impulsive noise from variable speed drives and use actual readings to verify the effectiveness of the proposed mitigation scheme.
Schlagworte
coloured impulsive noise
impulsive noise
impulsive noise mitigation schemes
Industrial powerline communication
OFDM