Power-line communications using DWMT modulation

Sun, Mingshun; Lun, Daniel Pak-Kong

doi:10.1109/iscas.2002.1010500

Cited by 4 publications

(4 citation statements)

References 7 publications

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“…It includes two multicarrier physical (PHY) layers, which are commonly referred to as OFDM via Fast Fourier Transform (FFT-OFDM) and Wavelet OFDM, respectively. The former is classic (windowed) OFDM, while the latter is a discrete wavelet multitone (DWMT) modulation [53]. They are noninteroperable but their coexistence is enabled by an inter-PHY protocol (IPP) [54], which later was extended to allow coexistence also with G.9960, and this extension was called inter-system protocol (ISP).…”

Section: B Plc Standardizationmentioning

confidence: 99%

State of the Art in Power Line Communications: From the Applications to the Medium

Cano

Pittolo

Malone

et al. 2016

IEEE J. Select. Areas Commun.

197

114

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In recent decades, power line communication has attracted considerable attention from the research community and industry, as well as from regulatory and standardization bodies. In this article we provide an overview of both narrowband and broadband systems, covering potential applications, regulatory and standardization efforts and recent research advancements in channel characterization, physical layer performance, medium access and higher layer specifications and evaluations. We also identify areas of current and further study that will enable the continued success of power line communication technology.essentially concerned with coexistence with other systems that also use the power grid (i.e. machines and appliances that draw electricity) and wireless systems operating in the same frequency bands as PLC. The frequency range used for today's PLC solutions starts as low as 125 Hz and reaches as high as 100 MHz. A useful classification of PLC systems according to frequency bands has been introduced in [28]: it distinguishes between ultra-narrowband (UNB), narrowband (NB) and broadband (BB) PLC systems, operating between about 125-3000 Hz, 3-500 kHz and 1.8-100 MHz, respectively. Most recent developments in standardization and regulation activities over the past 20 or so years apply to NB and BB PLC systems, and we will focus on these in the following.

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Section: B Plc Standardizationmentioning

confidence: 99%

State of the Art in Power Line Communications: From the Applications to the Medium

Cano

Pittolo

Malone

et al. 2016

IEEE J. Select. Areas Commun.

197

114

View full text Add to dashboard Cite

show abstract

“…Percebe-se que o OFDM leva uma grande vantagem no critério custo computacional, pois apresenta um algoritmo pelo menos 65% mais rápido em relação aos outros sistemas MCM estudados. Além disso, alguns trabalhos [19][20][21][22] demonstram que algoritmos simples de equalização resultam em ganho significativo de desempenho para o OFDM, enquanto para os outros sistemas MCM são necessários algoritmos complexos de equalização demandando ainda mais capacidade de hardware. V. CONCLUSÕES Neste trabalho foram estudados três tipos de sistemas MCM ortogonais: OFDM, DWMT realização via ELT e WPM.…”

Section: Parâmetros De Atenuaçãounclassified

Comparação das Técnicas de Modulação Multiportadoras Aplicadas às Comunicações via Rede Elétrica

Dezan¹,

Silva²,

Côco³

et al. 2004

Anais Do XXI Simpósio Brasileiro De Telecomunicações

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Resumo  Neste trabalho são comparados três tipos sistemas ortogonais de modulação digital multiportadora: Orthogonal Frequency Division Multiplexing (OFDM), Discrete Wavelet Multitone (DWMT) via Extended Lapped Transform (ELT) e Wavelet Packet Modulation (WPM). São descritas as principais características de cada sistema e uma análise comparativa sobre um canal multipercurso do desempenho é apresentada. Palavras-chaves  Comunicação via rede elétrica, Transmultiplexer, Modulação multiportadora.

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“…The idea of using filter banks with PR/NPR to implement multicarrier modulation systems is supported by the following intuitions: (i) the inter channel interference in a filter bank is dominated by the interferences among neighboring channels; (ii) such interferences are minimized when the neighboring channels/bands undergo a similar (complex) gain. Ina traditional DWMT system, FIR filter banks are designed to minimize ICI by decreasing the side lob energy of the filter banks in the modulator and demodulator sides [6].For more ICI reduction and less complexity, IIR wavelet filters with lattice all-pass sections can be used as sub-filters in the filter banks of DWMT system. It should be noted that ISI is not considered in all those designs.…”

Section: Introductionmentioning

confidence: 99%

“…There were many applications for the multicarrier modulation (MCM). For example, in 2002, Daniel , et al [6] proposed a power-line communication system using a type of DWMT modulation. Another example, in the same year, B. Farhang, et al [7], proposed the cosine modulated filter bank (CMFB) as an MCM tool for wideband data transmission over wireless channels.…”

Section: Introductionmentioning

confidence: 99%

Design and Implementation of DWMT Transmission Systems using IIR Wavelet Filter Banks

Abdul–Jabbar¹,

AL-Taei²

2013

Int. J. Com. Dig. Sys.

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Multicarrier modulation using orthogonal frequency division multiplexing (OFDM) is often recognized as an efficient solution for wireless communications. However, waveform bases other than sinusoidal functions can similarly be used for multicarrier systems in order to provide an alternative to OFDM. In this context, DWMT transmission systems are suggested. It is known that such systems suffer obviously from the two main problems of Inter Symbol Interference (ISI) and Inter-Carrier Interference (ICI). ISI may be considerably reduced via channel equalization. The effect of ICI can be reduced using high order Finite Impulse Response(FIR)wavelet filter banks, but at the expense of increased system complexity. Those FIR banks which are required to reduce effect the ICI should have autocorrelation functions approaching an impulse. On other hand, Infinite Impulse Response(IIR) filter banks can be used to replace those FIR counterparts to increase sub-band discrimination while reducing the required filter order, i.e., decreasing the complexity of system. In this paper, a special type of IIR filter banks is designed and implemented for such purpose. Bireciprocal lattice wave digital filters (BLWDFs) are utilized in an approximate linear phase design of 11th order IIR wavelet filter bank (FB) for discrete wavelet multi-tone (DWMT) transmission systems. The performances of the proposed DWMT for transmission over simulated wireless channels with additive white Gaussian noise (AWGN) are examined and compared with one of the recent FIR designs. Significant improvements over the classical DWMT approach are observed.

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Power-line communications using DWMT modulation

Cited by 4 publications

References 7 publications

State of the Art in Power Line Communications: From the Applications to the Medium

State of the Art in Power Line Communications: From the Applications to the Medium

Comparação das Técnicas de Modulação Multiportadoras Aplicadas às Comunicações via Rede Elétrica

Design and Implementation of DWMT Transmission Systems using IIR Wavelet Filter Banks

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