Comparison of transmultiplexers for multicarrier modulation

Neurohr, N.; Schilpp, M.

doi:10.1109/icosp.1998.770144

Cited by 19 publications

(14 citation statements)

References 10 publications

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“…This implementation and a number of subsequent publications on the subject, e.g., [8] - [12], led to a perceived complexity issue that kept the DSL industry luke-warm of adopting this method. The major part of the complexity of DWMT came from the equalization method that was proposed in [6] and [7].…”

Section: Wavelet-ofdmmentioning

confidence: 95%

Wavelet-OFDM versus filtered-OFDM in power line communication systems

Farhang

Kakhki

Farhang‐Boroujeny

2010

2010 5th International Symposium on Telecommunications

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Filtered orthogonal frequency division multiplexing (filtered-OFDM) and wavelet-OFDM are two modulation methods that have been proposed by the IEEE P1901 working group for data transmission over power lines. The filtered-OFDM is a modified version of the conventional OFDM that is designed to avoid the AM and amateur radio bands effectively. Although OFDM is a matured technology and thus it might be a preferred technology for most of the PLC industry (e.g., HomePlug Powerline Alliance), the acceptance of wavelet-OFDM as an alternative technology is because of a number of appealing advantages that it offers. The goal of this paper is to provide a bandwidth efficiency comparison of filtered-OFDM and wavelet-OFDM.

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Section: Wavelet-ofdmmentioning

confidence: 95%

Wavelet-OFDM versus filtered-OFDM in power line communication systems

Farhang

Kakhki

Farhang‐Boroujeny

2010

2010 5th International Symposium on Telecommunications

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“…It shows side lobes have high energy. However, in DWMT modulation the side lobes are more than 35 dB lower than the main lobe, which results in high spectral containment [5]. Due to such high spectral containment in DWMT modulation, it is not possible for the side lobes to cause interference with the neighboring lobes.…”

Section: Introductionmentioning

confidence: 92%

“…However, DWMT based systems use WT as filter banks which have tight orthogonality. In DMT, the first side lobe is just 13 dB lower than the main lobe [5]. It shows side lobes have high energy.…”

Section: Introductionmentioning

confidence: 94%

Impact of impulse noise on DWMT transceiver with overlap FDE

Khan

Seong

Jeong

et al. 2015

2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)

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Discrete wavelet multitone (DWMT) transceiver was proposed to overcome the problems posed by discrete multitone (DMT) transceiver. DWMT based transceiver has been suggested for digital subscriber loop (xDSL) systems where crosstalk and impulse noise are the main channel impairments. Modeling of impulse noise is not easy because of its random nature. In this paper, we have discussed all statistical parameters that are required to model the impulse noise necessary for xDSL channel with DWMT transceiver. Overlap frequency division multiplexing (FDE) that has already proposed for DWMT transceiver is applied to equalize the signal. Different trends of bit error rate ‫)܀۳۰(‬ for DWMT based transceiver with overlap FDE are also observed with different values of impulse noise index and impulse noise variance. It is concluded that increase in impulse noise density degrades the system's performance.Keywords-Discrete wavelet multitone; Asymmetric digital subscriber loop; Overlap frequency domain equalization, impulse noise; impulse noise index, impulse noise variance

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“…After wavelet packet multicarrier modulation, signals s(n) can be expressed as: From equation (16) and (17) we can see that making use of (14) and (15) can achieve signal orthogonal modulation and demodulation. DFT-OFDM system has larger spectrum sidelobe which would cause ISI and Intercarrier Interference [8] (ICI). In order to resist ISI, cyclic prefix is needed, and this could affect the system transmission efficiency.…”

Section: Wavelet Packet Multicarrier Systemmentioning

confidence: 99%

Wavelet packet multicarrier system based on MIMO antennae in AWGN

Liu

Hou

Sun

et al. 2008

2008 International Conference on Neural Networks and Signal Processing

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1In order to solve the shortage of wireless resources in next-generation mobile communications, a wavelet packet multicarrier system is built based on multiple input multiple output(MIMO) antennae, which integrates the advantages of multiple antennae channel capacity and the superiority of the translation orthogonality of the wavelet packet basis function. The bit error rate(BER) performance of the proposed system is verified by simulation in AWGN wireless channel, that it has the performance advantage, which provides a reference for physical layer standards in the next generation mobile communications.

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Comparison of transmultiplexers for multicarrier modulation

Cited by 19 publications

References 10 publications

Wavelet-OFDM versus filtered-OFDM in power line communication systems

Wavelet-OFDM versus filtered-OFDM in power line communication systems

Impact of impulse noise on DWMT transceiver with overlap FDE

Wavelet packet multicarrier system based on MIMO antennae in AWGN

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