Analytical bit error rate performance evaluation of an orthogonal frequency division multiplexing power line communication system impaired by impulsive and Gaussian channel noise

The Journal of Engineering

Munshi Mahbubur Rahman¹  Satya Prasad Majumder¹ 

[1] Department of EEE, Bangladesh University of Engineering and Technology, Dhaka 1000, Bangladesh

关键词: BER performance;    Middleton class-A noise model;    background PL Gaussian noise;    power penalty;    channel b;    width;    analytical bit error rate performance evaluation;    nonflat power spectral density;    impulsive channel noise;    PL background noise;    noise parameters;    signal-to-noise ratio;    Gaussian channel noise;    binary phase shift keying modulation;    power line communication system;    OFDM subcarriers;    orthogonal frequency division multiplexing power line communication system;    OFDM subchannel coherent demodulation;    multipath transfer function model;    PL communication system;   

DOI  :  10.1049/joe.2014.0236

学科分类：工程和技术（综合）

来源: IET

【 摘 要 】

An analytical approach is presented to evaluate the bit error rate (BER) performance of a power line (PL) communication system considering the combined influence of impulsive noise and background PL Gaussian noise. Middleton class-A noise model is considered to evaluate the effect of impulsive noise. The analysis is carried out to find the expression of the signal-to-noise ratio and BER considering orthogonal frequency division multiplexing (OFDM) with binary phase shift keying modulation with coherent demodulation of OFDM sub-channels. The results are evaluated numerically considering the multipath transfer function model of PL with non-flat power spectral density of PL background noise over a bandwidth of 0.3–100 MHz. The results are plotted for several system and noise parameters and penalty because of impulsive noise is determined at a BER of 10−6. The computed results show that the system suffers significant power penalty because of impulsive noise which is higher at higher channel bandwidth and can be reduced by increasing the number of OFDM subcarriers to some extent. The analytical results conform well with the simulation results reported earlier.

【 授权许可】

CC BY