Journal ArticleDOI
Block iterative DFE for single carrier modulation
Nevio Benvenuto,Stefano Tomasin +1 more
TLDR
An iterative block decision feedback equaliser (IB-DFE) for single carrier modulation is proposed which operates on blocks of the receive signal, thus allowing the use of error correction codes on the feedback data signal.Abstract:
An iterative block decision feedback equaliser (IB-DFE) for single carrier modulation is proposed. Filtering operations are implemented by discrete Fourier transforms (DFTs) which yield a reduced computational complexity, for both filter design and signal processing, when compared to existing DFEs. Moreover, the new IB-DFE operates on blocks of the receive signal, thus allowing the use of error correction codes on the feedback data signal.read more
Citations
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Journal ArticleDOI
Single Carrier Modulation With Nonlinear Frequency Domain Equalization: An Idea Whose Time Has Come—Again
TL;DR: This tutorial paper aims at providing an overview of nonlinear equalization methods as a key ingredient in receivers of SCM for wideband transmission, and reviews both hybrid (with filters implemented both in time and frequency domain) and all-frequency-domain iterative structures.
Journal ArticleDOI
Iterative interference cancellation and channel estimation for mobile OFDM
TL;DR: A relatively simple receiver scheme that iteratively cancels intercarrier interference and a new channel estimator that aims at maximizing the signal-to-noise-plus-ICI ratio at the detector input are proposed.
Proceedings ArticleDOI
A multiple access scheme for the uplink of broadband wireless systems
TL;DR: By employing IB-DFE (iterative block decision feedback equalization) techniques, this work can have detection performances close to the matched filter bound, and even for fully loaded systems and severe time-dispersive channels.
Journal ArticleDOI
Iterative layered space-time receivers for single-carrier transmission over severe time-dispersive channels
TL;DR: This letter presents an iterative layered space-time (LST) receiver structure for single-carrier (SC)-based transmission in severe time-dispersive channels that combines LST principles with iterative block decision feedback equalization techniques.
Journal ArticleDOI
Turbo frequency domain equalization for single-carrier broadband wireless systems
B. Ng,C.-T. Lam,David Falconer +2 more
TL;DR: The turbo principle applied jointly to FDE, channel decoding and channel estimation is considered and it is shown that they can provide performance comparable to the time-domain turbo equalization methods but with lower complexity.
References
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Journal ArticleDOI
On the comparison between OFDM and single carrier modulation with a DFE using a frequency-domain feedforward filter
Nevio Benvenuto,Stefano Tomasin +1 more
TL;DR: A new frequency-domain decision feedback equalizer for single carrier modulation, which makes use of a data block transmission format similar to that of the orthogonal frequency-division multiplexing with cyclic prefix, with the result that FD-DFE and OFDM have a similar computational complexity in signal processing.
Journal ArticleDOI
Channel equalization for block transmission systems
TL;DR: In this article, a nonstationary innovations representation based on Cholesky factorization is used in order to define a noise whitener and a maximum-likelihood block detector, and the derived block linear equalizers and block decision-feedback equalizers are derived.
Journal ArticleDOI
Block FIR decision-feedback equalizers for filterbank precoded transmissions with blind channel estimation capabilities
TL;DR: This framework encompasses existing block transmission schemes and offers low implementation-cost equalization techniques both when interblock interference is eliminated, and when IBI is present as, e.g., in orthogonal frequency-division multiplexing with insufficient cyclic prefix.
Journal ArticleDOI
A class of block-iterative equalizers for intersymbol interference channels: fixed channel results
TL;DR: It is shown that, because their structure allows cancellation of both precursor and postcursor ISI, iterated-decision equalizers outperform the minimum mean-square error DFE by 2.507 dB on severe ISI channels even with uncoded systems.
Journal ArticleDOI
Joint intersymbol and multiple‐access interference suppression algorithms for CDMA systems
TL;DR: Two promising classes of techniques are developed for efficient multiuser detection in code-division multiple-access (CDMA) communication systems subject to fading due to time-varying multipath propagation, and are representative of several emerging and interrelated approaches to receiver design for next-generation CDMA systems.
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Iterative design and detection of a DFE in the frequency domain
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