Nearly perfect-reconstruction cosine-modulated filter bank design for VDSL modems

Viholainen, A.; Saramäki, T.; Renfors, Markku

doi:10.1109/icecs.1999.812300

Cited by 34 publications

(16 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It is well known that a TMUX transceiver is obtained by interchanging the analysis and synthesis filter banks [3], where the synthesis filter bank is the transmitter and the analysis filter bank is the receiver. In the TMUX, signals coming from various sources are interpolated, filtered by synthesis filters, and added together to compose a single signal that is transmitted on a single channel C [12], [16]. The received signal is split by the analysis filters into M subchannels, where each subchannel output consists of an estimated version of the corresponding input source.…”

Section: Transmultiplexer and Filter Bank Systemsmentioning

confidence: 99%

See 1 more Smart Citation

A Generalized Oversampled Structure for Cosine-Modulated Transmultiplexers and Filter Banks

Barcellos

Diniz

Netto

2006

Circuits Syst Signal Process

View full text Add to dashboard Cite

In this paper, a new structure, called the channel split-and-add method, for designing oversampled transmultiplexers and filter banks is presented. The proposed method is based on an initial design with an additional number of bands. The band number is then reduced to the desired value by the proper combination of adjacent and/or nonadjacent bands (subchannels). With the proposed approach it is always possible to perform the filtering tasks at the lowest data rate of the system. An example illustrates the design flexibility achieved with the proposed structure.

show abstract

Section: Transmultiplexer and Filter Bank Systemsmentioning

confidence: 99%

“…, M − 1. By using the preceding equations in the filter bank structure, the ISI and ICI figures of merit can be estimated by using the following expressions [16]:…”

Section: Transmultiplexer and Filter Bank Systemsmentioning

confidence: 99%

A Generalized Oversampled Structure for Cosine-Modulated Transmultiplexers and Filter Banks

Barcellos

Diniz

Netto

2006

Circuits Syst Signal Process

View full text Add to dashboard Cite

show abstract

“…Thus, the main diagonal entries of this matrix, [T(z M )] aa , represent the transfer functions of each channel, and the other terms give the crosstalk between two different channels. In the NPR case, no restrictions apply to the transfer matrix, whereas in the PR case, the crosstalk terms must be zero and the diagonal terms become simple delays [12]. In a TMUX system, one would be interested in estimating the total ISI and ICI figures of merit, which are given by [12]:…”

Section: The Cmfb and Tmux Systemsmentioning

confidence: 99%

“…Cosine-modulated filter banks (CMFBs) are commonly used in practice because of two main features [1], [9], [11]. First, their realization relies only on the design of a single prototype filter that reduces the total number of parameters to be specified.…”

Section: Introductionmentioning

confidence: 99%

Optimized Prototype Filter Based on the FRM Approach for Cosine-Modulated Filter Banks

Furtado

Diniz

Netto

2003

Circuits Syst Signal Process

View full text Add to dashboard Cite

A design procedure for frequency-response masking (FRM) prototype filters of cosine-modulated filter banks (CMFBs) is proposed. In the given method, we perform minimization of the maximum attenuation level in the filter's stopband, subject to intersymbol interference (ISI) and intercarrier interference (ICI) constraints. For optimization, a quasi-Newton algorithm with line search is used, and we provide simplified analytical expressions to impose the interference constraints, which greatly reduce the computational complexity of the optimization procedure. The result is lower levels of ISI and ICI for a predetermined filter order, or a reduced filter complexity for given levels of interferences. It is then illustrated how the FRM-CMFB structure is suitable for implementing filter banks with a large number of bands, yielding sharp transition bands and small roll-off factors, which is an attractive feature for a wide range of practical applications.

show abstract

“…To design the prototype filter G(z), we can use any standard filter design technique, e.g., Bregović & Saramäki (2005) Viholainen et al (1999). The MDFT FB has a lowpass G(z) with a stopband edge at ω s T = 2π M according to Fliege (1995).…”

Section: Filter Design For Modulated Fbsmentioning

confidence: 99%

Reconfigurable Multirate Systems in Cognitive Radios

Eghbali¹,

Johansson²

2012

Foundation of Cognitive Radio Systems

View full text Add to dashboard Cite

Nearly perfect-reconstruction cosine-modulated filter bank design for VDSL modems

Cited by 34 publications

References 9 publications

A Generalized Oversampled Structure for Cosine-Modulated Transmultiplexers and Filter Banks

A Generalized Oversampled Structure for Cosine-Modulated Transmultiplexers and Filter Banks

Optimized Prototype Filter Based on the FRM Approach for Cosine-Modulated Filter Banks

Reconfigurable Multirate Systems in Cognitive Radios

Contact Info

Product

Resources

About