A multiple decision delay decision-feedback equalizer (MDDDFE) is proposed for short-burst data communication over frequency-selective Rayleigh-fading indoor wireless channels. Simulation results show that MDDDFE can maintain low average bit error rate without incurring too much computational overhead. In particular, approximately 3dB gain over the conventional single DFE approach is obtainable...

We propose a decision-aided equalizer that uses past symbol decisions, like classical decision-feedback equalizers, but also future decisions, hence the name Non-Causal DecisionFeedback Equalizer (NCDFE). Its derivation is done in a burst processing and multichannel context, using Maximum Likelihood Sequence Estimation (MLSE). The forward lter of the NCDFE is proportional to the channel matched...

In this paper, an adaptive quadrature amplitude modulation (AQAM) scheme for an equalized system over a selective channel is investigated. To reduce intersymbol interference (ISI), a minimum-mean-squarederror decision feedback equalizer (MMSE-DFE) with an unbiased decision rule is used. In order to select the appropriate modulation mode, the receiver estimates the MSE at the equalizer output. T...

For the Gaussian channel with intersymbolinterference (ISI), it is known that there is no loss in channel capacity if the receiver is an ideal minimum mean-squared error (MMSE) decision-feedback equalizer (DFE) with error-free feedback. However, combining the DFE with channel coding is problematic. Transmitter precoding and reduced-state sequence estimation are two common approaches (cf. [1] an...

Basically, conventional single-carrier system has an advantage in limited power communication systems. However, the performance of conventional single-carrier system is seriously degraded by ISI (inter-symbol interference). In order to overcome the ISI, communication systems are commonly used an equalizer. Turbo equalization technique was proposed to maximize system performance over ISI channel...

A new adaptive MIMO channel equalizer is proposed based on adaptive generalized decision-feedback equalization and ordered-successive interference cancellation. The proposed equalizer comprises equal-length subequalizers, enabling any adaptive filtering algorithm to be employed for coefficient updates. A recently proposed computationally-efficient recursive least-squares algorithm based on dich...

In this paper, we propose a new residual frequency offset tracking scheme for a SC-FDE(Single Carrier – Frequency Domain Equalizer) with frequency domain pilots. The SC-FDE system is a field that gathers more and more interests for the modulation scheme of a broadband wireless service. In the case of considering a high-speed data transmission in a multi-path fading channel, a conventional time ...