Filterbank transceivers optimizing information rate in block transmissions over dispersive channels

Anna Scaglione, Sergio Barbarossa, Georgios B. Giannakis

Research output: Contribution to journalArticle

203 Citations (Scopus)

Abstract

Optimal finite impulse response (FIR) transmit and receive filterbanks are derived for block-based data transmissions over frequency-selective additive Gaussian noise (AGN) channels by maximizing mutual information subject to a fixed transmit-power constraint. Both FIR and pole-zero channels are considered. The inherent flexibility of the proposed transceivers is exploited to derive, as special cases, zero-forcing (ZF) and minimum mean-square error receive filterbanks. The transmit filterbank converts transmission over a frequency-selective fading channel, affected by additive colored noise, into a set of independent flat fading subchannels with uncorrelated noise samples. Two loading algorithms are also developed to distribute transmit power and number of bits across the usable subchannels, while adhering to an upper bound on the bit error rate (BER). Reduction of the signal-to-noise ratio (SNR) margin required to satisfy the prescribed BER is achieved by coding each subchannel's bit stream. The potential of the proposed transceivers is illustrated and compared to discrete multitone (DMT) with simulated examples.

Original languageEnglish (US)
Pages (from-to)1019-1032
Number of pages14
JournalIEEE Transactions on Information Theory
Volume45
Issue number3
DOIs
StatePublished - 1999
Externally publishedYes

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Impulse response
Transceivers
Bit error rate
Poles and zeros
Frequency selective fading
Additive noise
Mean square error
Fading channels
Data communication systems
Signal to noise ratio
Pole
coding
flexibility

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Information Systems

Cite this

Filterbank transceivers optimizing information rate in block transmissions over dispersive channels. / Scaglione, Anna; Barbarossa, Sergio; Giannakis, Georgios B.

In: IEEE Transactions on Information Theory, Vol. 45, No. 3, 1999, p. 1019-1032.

Research output: Contribution to journalArticle

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