scholarly journals Wavelet OFDM for Power Line Communication

2021 ◽  
Author(s):  
Sagar C. Kar
Keyword(s):  
Orthogonal Frequency Division Multiplexing ◽  
Impulsive Noise ◽  
Power Line ◽  
Performance Comparison ◽  
Cyclic Prefix ◽  
Power Line Communication ◽  
Frequency Division ◽  
System A ◽  
Wavelet Techniques ◽  
Efficient Transmission

Power Line Communication (PLC) system offers cheaper mode of signal communication facilities. In fast Fourier transform (FFT) based multicarrier PLC system, a cyclic prefix (CP) of the same length of the channel impulse response is added to each symbol in order to transmit data. As a result, there is always an inherent wastage of bandwidth and resources. This research presents a wavelet transform based orthogonal frequency division multiplexing (WTOFDM) approach that eliminates the need for these cyclic prefix and improves the efficiency of the PLC transmission. The presented PLC model is designed for faster and efficient transmission over the power line. The obtained results indicate that the proposed approach enhances the transmission throughput; provides better performance for impulsive noise, and increases the efficiency of the PLC system as a whole. In the end a performance comparison of different wavelet techniques have also been incorporated.

scholarly journals Wavelet OFDM for Power Line Communication

2021 ◽  
Author(s):  
Sagar C. Kar
Keyword(s):  
Orthogonal Frequency Division Multiplexing ◽  
Impulsive Noise ◽  
Power Line ◽  
Performance Comparison ◽  
Cyclic Prefix ◽  
Power Line Communication ◽  
Frequency Division ◽  
System A ◽  
Wavelet Techniques ◽  
Efficient Transmission

Power Line Communication (PLC) system offers cheaper mode of signal communication facilities. In fast Fourier transform (FFT) based multicarrier PLC system, a cyclic prefix (CP) of the same length of the channel impulse response is added to each symbol in order to transmit data. As a result, there is always an inherent wastage of bandwidth and resources. This research presents a wavelet transform based orthogonal frequency division multiplexing (WTOFDM) approach that eliminates the need for these cyclic prefix and improves the efficiency of the PLC transmission. The presented PLC model is designed for faster and efficient transmission over the power line. The obtained results indicate that the proposed approach enhances the transmission throughput; provides better performance for impulsive noise, and increases the efficiency of the PLC system as a whole. In the end a performance comparison of different wavelet techniques have also been incorporated.

Carrier Modulation Technology Based on Orthogonal Frequency Division Multiplexing

2013 ◽  
Vol 774-776 ◽  
pp. 1671-1676
Author(s):  
Chen Wu Li ◽  
Jian Zhang ◽  
Qin Xie ◽  
Xiao Hong Zhang
Keyword(s):  
Fourier Transform ◽  
Discrete Fourier Transform ◽  
Orthogonal Frequency Division Multiplexing ◽  
Low Voltage ◽  
Power Line ◽  
Power Line Communication ◽  
Frequency Division Multiplexing ◽  
Frequency Division ◽  
Family Network ◽  
Inverse Discrete Fourier Transform

This paper first analyzes the transmission characteristics of low-voltage power line channels with the focus on the study of carrier modulation technology regarding the power line communication part, then proposes the orthogonal frequency division multiplexing technology that serves for the digital communication of family network power line communication gateways, analyzes the OFDM system principle, actulizes OFDM modulation and demodulation through discrete Fourier transform (DFT) and inverse discrete Fourier transform (IDFT), and build the OFDM simulation model. Finally, a specific plan of using power lines as the family network transmission media is proposed.

Clustered-orthogonal frequency division multiplexing for power line communication: when is it beneficial?

2014 ◽  
Vol 8 (13) ◽  
pp. 2336-2347 ◽  
Author(s):  
Moises V. Ribeiro ◽  
Guilherme R. Colen ◽  
H. Vincent Poor ◽  
Zhi Quan ◽  
Fabricio V.P. de Campos
Keyword(s):  
Orthogonal Frequency Division Multiplexing ◽  
Power Line ◽  
Power Line Communication ◽  
Frequency Division Multiplexing ◽  
Frequency Division

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

scholarly journals Deep neural network for orthogonal frequency division multiplexing systems without cyclic prefix transmission

2018 ◽  
Vol 189 ◽  
pp. 04016
Author(s):  
Viet-Hung Nguyen ◽  
Minh-Tuan Nguyen ◽  
Yong-Hwa Kim
Keyword(s):  
Neural Network ◽  
Orthogonal Frequency Division Multiplexing ◽  
Deep Neural Network ◽  
Cyclic Prefix ◽  
Wireless Transmission ◽  
Frequency Division Multiplexing ◽  
Frequency Division ◽  
Ofdm System ◽  
New Approach ◽  
Multiplexing Systems

Orthogonal frequency division multiplexing (OFDM) is widely used in wired or wireless transmission systems. In the structure of OFDM, a cycle prefix (CP) has been exploited to avoid the effects of inter-symbol interference (ISI) and inter-carrier interference (ICI). This paper proposes a new approach to transmit the signals without CP transmission. Using the deep neural network, the proposed OFDM system transmits data without the CP. Simulation results show that the proposed scheme can estimate the CP at the receiver and overcome the effect of ISI.

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