Characterization of Brazilian in-home power line channels for data communication

Oliveira, Thiago Rodrigues; Picorone, Antonio Angelo Missiaggia; Netto, Sérgio L.; Ribeiro, Moisés V.

doi:10.1016/j.epsr.2017.05.011

Cited by 42 publications

(23 citation statements)

References 23 publications

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“…Even though the CB and CT are two of the main features for characterizing PLC channels, there is a clear lack of characterization for them in countries with distinct profiles from US and European countries. An attempt to overcome this problem is the analysis of ACA, RMS-DS, CB, and CT in Brazilian in-home PLC channels provided in [19]. Also, an initial attempt to provide statistical modelings of ACG and delay spread in Brazil was introduced in [20].…”

Section: Introductionmentioning

confidence: 99%

Statistical Modeling of Brazilian In-Home PLC Channel Features

Oliveira¹,

Picorone

Zeller

et al. 2019

JCIS

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This paper deals with the statistical modeling of key features of power line communication (PLC) channels that are necessary for designing data communication systems that operate over theses channels. The key features are average channel attenuation, root mean squared delay spread, coherence bandwidth and coherence time. All these features were estimated from in-home PLC channels measured in seven distinct Brazilian residences. Assuming that each feature is a random variable, four criteria (i.e., maximum likelihood estimate and three different information criteria) are used to select the statistical distribution that fits best to the data. The symmetry and asymmetry of the histogram associated with each feature is pointed out. The reported results focus on three frequency bands, namely: 1.7-30 MHz, 1.7-50 MHz and 1.7-100 MHz, which are in accordance with the standards used in Europe, North America and Brazil. The values obtained to Brazilian PLC channel features are different from those related to US and Europe channels reported in literature. Thus, the presented statistical models constitute an important tool to better design practical PLC systems that are suitable for Brazilian and in-home electric power grids.

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Section: Introductionmentioning

confidence: 99%

Statistical Modeling of Brazilian In-Home PLC Channel Features

Oliveira¹,

Picorone

Zeller

et al. 2019

JCIS

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“…Para tanto, considera-se uma simulação Monte Carlo com a transmissão de N = 10 7 bits modulados em amplitude de pulso M -ária (M -ary pulse amplitude modulation -M -PAM) com energia média unitária e M ∈ {2, 4, 16}. O meio de comunicaçãó e representado pelas estimativas de canais PLC residenciais, com L h = 512, obtidos por meio da campanha de medição discutida em [5].…”

Section: Resultados Numéricosunclassified

Equalização por Pseudo-Inversa em Canais PLC

Moreira¹,

Camponogara²,

Ribeiro³

et al. 2019

Anais De XXXVII Simpósio Brasileiro De Telecomunicações E Processamento De Sinais

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Resumo-Esse trabalho discute o uso de um equalizador FIR linear, obtido a partir da pseudo-inversa da matriz de convolução da resposta ao impulso do canal, em canais power line communication (PLC). Seu desempenho foi analisado através da transmissão de símbolos M-PAM em um canal PLC medido e corrompido pela adição de um ruído Gaussiano branco. Os resultados de BER mostram que a ordem da constelação, o comprimento do equalizador e a SNR influenciam o desempenho do equalizador. Palavras-Chave-Equalização, pseudo-inversa, comunicação através da rede de energia elétrica.

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“…The covered frequency band is between 1.7 and 100 MHz. Also, 232 measures were obtained with the use of the HS-OFDM scheme with N = 2048 subchannels and a cyclic prefix of L cp = 512 samples, as described in [8]. The number of microslots during a time interval corresponding to one cycle of the mains signal is M = 32 and the time interval of each microslot is equal to T γ = (1/f 0 )/M ≈ 520 µs, where f 0 = 60 Hz is the mains frequency.…”

Section: Enhanced Temporal Compressive Resource Allocationmentioning

confidence: 99%

An Enhanced Temporal Compressive Resource Allocation Technique for PLC Systems

Coutinho¹,

Colen²,

Ribeiro³

2020

Anais De XXXVIII Simpósio Brasileiro De Telecomunicações E Processamento De Sinais

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This work introduces enhanced versions of the temporal compressive resource allocation technique, which is applied for power line communication systems when the periodically time varying behavior of electric power systems is taken into account. The enhancements are accomplished by introducing two changes that increase the effectiveness of the resource allocation process based on rate adaptation. The first change refers to the use of the minimum signal-to-noise ratio of each set of microslots for preventing symbol error rate peaks in some microslots. The second change imposes the use of the normalized signal-tonoise ratio matrix to estimate the correlation among microslots since it is a more reliable parameter to provide such type of information. Numerical results, based on a comparison between the full enhanced version, a partial enhanced version and the original technique, show that both enhanced versions are capable of fulfilling symbol error rate upper bound with reduced data rate loss penalty in comparison to the original one. Also, the use of the normalized signal-to-noise ratio matrix results in higher computational complexity reduction.

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Characterization of Brazilian in-home power line channels for data communication

Cited by 42 publications

References 23 publications

Statistical Modeling of Brazilian In-Home PLC Channel Features

Statistical Modeling of Brazilian In-Home PLC Channel Features

Equalização por Pseudo-Inversa em Canais PLC

An Enhanced Temporal Compressive Resource Allocation Technique for PLC Systems

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