A New Noise Mitigation Method Based on Normalization Time Frequency Peak Filtering in Broadband Power Line Communication System

2015 ◽  
Author(s):  
Zhigang Qiu
Keyword(s):  
Communication System ◽  
Power Line ◽  
Power Line Communication ◽  
Noise Mitigation ◽  
Time Frequency ◽  
Frequency Peak

scholarly journals Noise Elimination of Low-Voltage Power Line Communication Channel using Time-Frequency Peak Filtering Algorithm

2021 ◽  
Vol 15 ◽  
pp. 439-452
Author(s):  
Yuanju Mou ◽  
Zhizhong Lv ◽  
Liang Ge ◽  
Xiaoting Xiao ◽  
Zhengyin Wang
Keyword(s):  
Bit Error Rate ◽  
Background Noise ◽  
Low Voltage ◽  
Signal To Noise Ratio ◽  
Power Line ◽  
Channel Noise ◽  
Power Line Communication ◽  
Time Frequency ◽  
Filtering Algorithm ◽  
Frequency Peak

There are a lot of noises in the low-voltage power line communication (LVPLC) channel, which seriously damages the LVPLC system. The noise in the low voltage power line can be divided into general background noise and random pulse noise. These two noises will cause serious interference to the communication process based on LVPLC, reduce the signal-to-noise ratio of LVPLC system, and the communication quality cannot meet the requirements. To ensure the communication quality, this paper uses the time-frequency peak filtering algorithm to eliminate the noise in the LVPLC in the experimental environment. Firstly, this paper studies the noise characteristics based on the measured LVPLC channel noise. Secondly, the memory noise model is established, and the time-frequency peak filtering algorithm is used to eliminate the noise. In order to analyze the denoising effect of time-frequency peak filtering algorithm, the algorithm is simulated. Finally, the application effect of the algorithm is verified by experimental test. The simulation and application results show that the time-frequency peak filtering algorithm can improve the signal-to-noise ratio by about 5 dB in the actual noise environment of LVPLC, which can adapt to the changeable environment of LVPLC channel noise, and has good noise suppression effect and good application value. The application in the solar panel data transmission system shows that the time-frequency peak filtering algorithm can meet the communication performance requirements of the laboratory, reduce the bit error rate by about 2 % under the general background noise interference, and reduce the bit error rate by about 3 % under the pulse interference environment, and improve the transmission quality of LVPLC system.

A Novel Precoding and Impulsive Noise Mitigation Scheme for MIMO Power Line Communication Systems

2019 ◽  
Vol 13 (1) ◽  
pp. 6-17 ◽  
Author(s):  
Yuwen Qian ◽  
Xiangwei Zhou ◽  
Jun Li ◽  
Feng Shu ◽  
Dushantha Nalin K. Jayakody
Keyword(s):  
Communication Systems ◽  
Impulsive Noise ◽  
Power Line ◽  
Power Line Communication ◽  
Noise Mitigation

Performance evaluation for medium voltage MIMO-OFDM power line communication system

2020 ◽  
Vol 17 (1) ◽  
pp. 151-162 ◽  
Author(s):  
Yingxue Li ◽  
Min Zhang ◽  
Wenguang Zhu ◽  
Mengyuan Cheng ◽  
Cheng Zhou ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Communication System ◽  
Power Line ◽  
Power Line Communication ◽  
Medium Voltage ◽  
Mimo Ofdm
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