TY - JOUR
T1 - Performance comparison of modified BPSK-OFDM and QFSK-OFDM in PLC channel noise
AU - Bolaji, Abiola G.
AU - Shongwe, Thokozani
N1 - Publisher Copyright:
© The Author(s). This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0, https://creativecommons.org/licenses/by/4.0/), which permits use, distribution, and reproduction in any medium, provided that the Article is properly cited.
PY - 2020
Y1 - 2020
N2 - The article describes and compares two OFDM based communications schemes for reducing the effects of the combination of Narrowband Interference (NBI) and Impulsive Noise (IN), which are noise types typical in Power Line Communication (PLC). The two schemes are Modified BPSK-OFDM (called MBPSK, for brevity) and QFSK-OFDM (called QFSK, for brevity), which are non-conventional OFDM schemes. We give a description of the two schemes, showing how they are derived and also show their similarities and eventually compare their performances. Performance simulation results, in terms of bit error rate, are given to compare the systems under the effect of IN and NBI. The popular Middleton Class A model is used for modelling IN. The results show that MBPSK scheme outperforms the QFSK scheme in terms of minimum distance, and hence in terms of bit error probability when no preprocessing is performed. However, under clipping/nulling, both schemes eventually reach the bit error rate floor.
AB - The article describes and compares two OFDM based communications schemes for reducing the effects of the combination of Narrowband Interference (NBI) and Impulsive Noise (IN), which are noise types typical in Power Line Communication (PLC). The two schemes are Modified BPSK-OFDM (called MBPSK, for brevity) and QFSK-OFDM (called QFSK, for brevity), which are non-conventional OFDM schemes. We give a description of the two schemes, showing how they are derived and also show their similarities and eventually compare their performances. Performance simulation results, in terms of bit error rate, are given to compare the systems under the effect of IN and NBI. The popular Middleton Class A model is used for modelling IN. The results show that MBPSK scheme outperforms the QFSK scheme in terms of minimum distance, and hence in terms of bit error probability when no preprocessing is performed. However, under clipping/nulling, both schemes eventually reach the bit error rate floor.
KW - BPSK-OFDM
KW - Impulsive noise
KW - Narrow-band Interference
KW - Powerline communications
KW - QFSK-OFDM
UR - http://www.scopus.com/inward/record.url?scp=85097607850&partnerID=8YFLogxK
U2 - 10.24425-ijet.2020.134017/740
DO - 10.24425-ijet.2020.134017/740
M3 - Article
AN - SCOPUS:85097607850
SN - 2081-8491
VL - 66
SP - 499
EP - 605
JO - International Journal of Electronics and Telecommunications
JF - International Journal of Electronics and Telecommunications
IS - 4
ER -