Performance analysis of orthogonal frequency division multiplexing systems in dispersive indoor power line channels inflicting asynchronous impulsive noise

Hidden semi-Markov modelling of the asynchronous impulsive noise (IN) encountered in indoor broadband power line communications (PLCs) is investigated by considering the statistical distributions of both the inter-arrival time and the duration of asynchronous IN components. Then, the bit error ratio (BER) of orthogonal frequency division multiplexing systems using Q-ary quadrature amplitude modulation is analysed with the aid of the proposed noise model, when communicating over dispersive indoor power line channels inflicting asynchronous IN in addition to the background noise. The authors’ simulation results confirm the accuracy of the analysis and quantify the impact of various factors on the achievable BER performance. The grave impact of asynchronous IN on indoor broadband PLCs suggests that efficient techniques have to be designed for mitigating its effect

Fifty Years of Noise Modeling and Mitigation in Power-Line Communications.

Building on the ubiquity of electric power infrastructure, power line communications (PLC) has been successfully used in diverse application scenarios, including the smart grid and in-home broadband communications systems as well as industrial and home automation. However, the power line channel exhibits deleterious properties, one of which is its hostile noise environment. This article aims for providing a review of noise modeling and mitigation techniques in PLC. Specifically, a comprehensive review of representative noise models developed over the past fifty years is presented, including both the empirical models based on measurement campaigns and simplified mathematical models. Following this, we provide an extensive survey of the suite of noise mitigation schemes, categorizing them into mitigation at the transmitter as well as parametric and non-parametric techniques employed at the receiver. Furthermore, since the accuracy of channel estimation in PLC is affected by noise, we review the literature of joint noise mitigation and channel estimation solutions. Finally, a number of directions are outlined for future research on both noise modeling and mitigation in PLC

Performance analysis of OFDM systems in dispersive indoor power line channels inflicting impulsive noise

Hidden semi-Markov modelling (HSMM) of the asynchronous impulsive noise encountered in indoor broadband power line communications (PLCs) is investigated by considering the statistical distributions of both the inter-arrival time and the duration of asynchronous impulsive noise components. Then,the bit error ratio (BER) of orthogonal frequency division multiplexing (OFDM) systems using Q-ary quadrature amplitude modulation (QAM) is analyzed with the aid of the proposed noise model, when communicating over dispersive indoor power line channels inflicting asynchronous impulsive noise in addition to the background noise. Our simulation results confirm the accuracy of the analysis and quantify the impact of various factors on the achievable BER performance. The grave impact of asynchronous impulsive noise on indoor broadband PLCs suggests that efficient techniques have to be designed for mitigating its effects

Performance Analysis of OFDM Systems in Dispersive Indoor Power Line Channels Inflicting Impulsive Noise

Hidden semi-Markov modelling (HSMM) of the asynchronous impulsive noise encountered in indoor broadband power line communications (PLCs) is investigated by considering the statistical distributions of both the inter-arrival time and the duration of asynchronous impulsive noise components. Then, the bit error ratio (BER) of orthogonal frequency division multiplexing (OFDM) systems using Q-ary quadrature amplitude modulation (QAM) is analyzed with the aid of the proposed noise model, when communicating over dispersive indoor power line channels inflicting synchronous impulsive noise in addition to the background noise. Our simulation results confirm the accuracy of the analysis and quantify the impact of various factors on the achievable BER performance. The grave impact of asynchronous impulsive noise on indoor broadband PLCs suggests that efficient techniques have to be designed for mitigating its effects.</span

Orthogonal multicarrier modulation for high-rates mobile and wireless communications

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