Performance analysis of discrete wavelet multitone transceiver for narrowband PLC in Smart Grid

Baig, Shams Ali; Yazdani, Javad

doi:10.1109/isgteurope.2011.6162767

Cited by 6 publications

(5 citation statements)

References 13 publications

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“…Impulse noise is simulated using Middleton noise model A. For comparison purposes, TDE and FDE discussed in Baig and Yazdani and Baig and Mughal, respectively, as conventional techniques are applied with the proposed techniques of OFDE and LP‐OFDE. The proposed OFDE and LP‐OFDE transceivers for OFDM and WOFDM are also simulated in the presence of different impulse noise intensities to prove their supremacy over conventional transceivers.…”

Section: Resultsmentioning

confidence: 99%

“…9 To encounter the deterioration caused by multipath fading and impulse noise in OFDM-based PLC systems, though different equalization schemes have been proposed in the literature, [10][11][12][13][14][15][16][17][18] very few studies related to equalization techniques for WOFDM-based PLC systems are available. [19][20][21] Among different proposed techniques for WOFDM-based PLC systems, one of the presented techniques is based on time-domain equalization (TDE) 19 ; however, TDE cannot be considered an optimal choice because its complexity increases with the increase in channel length. Similarly, another equalization technique is based on frequency domain equalization (FDE) 20 ; however, this technique reduces the spectral efficiency of the system because of the inclusion of CP.…”

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confidence: 99%

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Linear precoded wavelet OFDM‐based PLC system with overlap FDE for impulse noise mitigation

Khan

Shin

2017

Int J Communication

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Summary In recent years, power lines have gained significant interest for their use in high‐speed communications because of the already deployed power distribution infrastructure. However, to achieve high data rates with reliability in power line communication (PLC), robust signal processing techniques are required to mitigate channel distortion and noise. Orthogonal frequency division multiplexing (OFDM) as a multicarrier modulation technique has been standardized for PLC; however, to further enhance the quality of communication, wavelet OFDM (WOFDM) has been proposed as a suitable choice. In this article, OFDM‐based and WOFDM‐based PLC systems are studied, and overlap frequency domain equalization (OFDE) as a robust and efficient equalization technique is presented. Moreover, to enhance the efficiency of the OFDE, linear precoding (LP) is also suggested for fast Fourier transform and wavelet transform–based filter bank transceivers over the PLC channel. Performance of the proposed LP‐based OFDM‐OFDE and LP‐based WOFDM‐OFDE systems is compared with previously proposed equalization structures in terms of bit error rate, peak‐to‐average power ratio, and computational complexity via computer simulations. Furthermore, the performance of proposed architectures is also compared with classical equalization techniques under impulse noise with different intensities. Results show that not only the proposed LP‐based WOFDM‐OFDE transceiver performs better than the previous equalization models but also the LP‐based OFDM‐OFDE at the expense of slight increment in computational complexity.

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Section: Resultsmentioning

confidence: 99%

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confidence: 99%

Linear precoded wavelet OFDM‐based PLC system with overlap FDE for impulse noise mitigation

Khan

Shin

2017

Int J Communication

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“…To derive the expression of the PDF of the overall instantaneous SNR γ o and facilitate our calculation, the approximation of (10) for 0 < x < 2k. Thus ( 10) and ( 11) can be rewritten as…”

Section: B the Rf Linkmentioning

confidence: 99%

Performance Analysis of Dual-Hop Mixed PLC/RF Communication Systems

Yang

Yan

et al. 2020

Preprint

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In this paper, we study a dual-hop mixed power line communication and radio-frequency communication (PLC/RF) system, where the connection between the PLC link and the RF link is made by a decode-and-forward (DF) or amplify-andforward (AF) relay. Assume that the PLC channel is affected by both additive background noise and impulsive noise suffers from Log-normal fading, while the RF link undergoes Rician fading. Based on this model, analytical expressions of the outage probability (OP), average bit error rate (BER), and the average channel capacity (ACC) are derived. Furthermore, an asymptotic analysis for the OP and average BER, as well as an upper bound expression for the ACC are presented. At last, numerical results are developed to validate our analytical results, and in-depth discussions are conducted.Index Terms-Average bit error rate (BER), outage probability (OP), average channel capacity (ACC), power line communication, radio-frequency system. I. INTRODUCTIONA S a low-cost and energy-saving communication technology, power line communication (PLC) utilizes the existing cables for data transmission [1]- [3]. According to different voltage levels, PLC can communicate through low-voltage cables, medium-voltage cables, and high-voltage cables [4]- [5]. Compared with other methods of communication, PLC has the characteristics of wide coverage, convenient connection, and no need to rewire, which enables it to be used in indoor and outdoor communication. For instance, in [6], the authors put forward a kind of indoor narrow-band PLC network model, and provided the appropriate types of cables and electrical appliances through laboratory experiments and simulation results. Based on the deep integration of PLC and visible light (VLC), a original, practical, and economical indoor broadband broadcasting network was studied in [7]. The authors in [8] investigated the spatial correlation in indoor multiple-input multiple-output (MIMO) PLC channels. Additionally, PLC has arisen as one of the main technical methods of two-way communication in smart grid (SG) [9]. It can be connected to all locations of the grid and transmit data on the original infrastructure. In [10], the authors studied the performance of discrete wavelet multitone transceiver for narrow-band PLC in SG.However, compared with general wireless communication systems, the performance of PLC communication systems is highly influenced by frequency selectivity, path loss, and various attenuation and interference. In addition, impedance mismatch and non-Gaussian noise in the PLC channel arise as further issues to be tackled with. Moreover, since PLC was originally used to transmit electric energy (and not for data communication), the transmission power in PLC systems should comply with the regulations of relevant government departments, which leads to the limitation of system capacity and transmission distance [11]. Finally, the affection of background noise (BGN) and impulsive noise (IMN) on system performance should also be jointly considered in PLC systems as...

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“…Como una alternativa a F-OFDM y en respuesta a las debilidades apuntadas, existe mucha investigación sobre un procesamiento de señales OFDM mediante la utilización de las llamadas wavelets 14 ("ondículas"), implementándose a través de la Transformada Discreta Wavelet (DWT). El desarrollo ha llegado al punto de que Wavelet OFDM (W-OFDM o DWMT, Discrete Wavelet Multitone) ha llegado a ser parte de un estándar para la capa PHY de BB-PLC, como lo es el IEEE 1901.1 (Hoch, 2010) (Baig & Yazdani, 2012).…”

Section: Ofdm Con Procesamiento Wavelet (W-ofdm)unclassified

“…W-OFDM se basa en la implementación de OFDM mediante bancos de filtros de reconstrucción perfecta modulados por coseno (PR-CMFB), que son realizaciones de transformadas wavelets, en contraposición a las funciones de base exponencial de F-OFDM (Hoch, 2010). Los bancos de filtros wavelet permiten la reconstrucción perfecta sin aliasing utilizando bancos de filtros no ideales (Baig & Yazdani, 2012), que pueden implementarse con baja complejidad computacional (Galli et al, 2008).…”

Section: Ofdm Con Procesamiento Wavelet (W-ofdm)unclassified

Desarrollo Y Simulación De Un Modelo De Transceptor Basado En Prime Para Simulación Sobre Canal PLC

Veglia

Martínez

Scappini

2018

ESJ

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The choice of modification technique for a communications system depends to a large extent on the nature and characteristics of the medium in which it must operate (Hrasnica et al., 2005). In a PLC (Power Line Communications) system, the first applications in the LDR band (oriented to the control of devices) operated with monocarrier modulations, such as ASK, BPSK, and FSK. This allows for low implementation costs, provided that it operates at low data rates and with an error correction system. It is clear that applications require a higher data rate. The modulation technique must overcome challenges such as the necessary equalization for the cause of the non-linearity of the channel, or avoid the propagation delays and the multipath caused by the impedance differences in the branches. Likewise, it must offer flexibility and avoid the use of certain frequencies if they are altered or assigned to another service and, therefore, cannot be used in PLC. In this scenario, one of the techniques that have been imposed in the most used developments in NB-PLC as in BB-PLC has been Orthogonal Frequency Division Multiplexing (OFDM). One of its most attractive aspects from the point of view of its complexity is the possibility of implementing the structure of its multifrequency modulation and demodulation scheme through a simple Inverse Discrete Fourier Transform (IDFT) and its corresponding direct transform, Fast Fourier Transform (FFT). Based on this technique, an appropriate transceiver scheme for operating on a PLC channel model was presented. This development implements the error correction technique proposed for NB-PLC.

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Performance analysis of discrete wavelet multitone transceiver for narrowband PLC in Smart Grid

Abstract: Abstract-Smart

Cited by 6 publications

References 13 publications

Linear precoded wavelet OFDM‐based PLC system with overlap FDE for impulse noise mitigation

Linear precoded wavelet OFDM‐based PLC system with overlap FDE for impulse noise mitigation

Performance Analysis of Dual-Hop Mixed PLC/RF Communication Systems

Desarrollo Y Simulación De Un Modelo De Transceptor Basado En Prime Para Simulación Sobre Canal PLC

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