Results 21 to 30 of about 4,199 (203)

Spatial and Time-Reversal Diversity Aided Least-Symbol-Error-Rate Turbo Receiver for Underwater Acoustic Communications

open access: yesIEEE Access, 2018
In this paper we propose a new type of receiver for underwater acoustic communication. The proposed receiver has the following features: 1) It has a turbo structure with an embedded adaptive decision feedback equalizer (DFE), which is based on the least ...
Lijun Xu   +5 more
doaj   +1 more source

Limiting Performance of Conventional and Widely Linear DFT-precoded-OFDM Receivers in Wideband Frequency Selective Channels [PDF]

open access: yes, 2013
This paper describes the limiting behavior of linear and decision feedback equalizers (DFEs) in single/multiple antenna systems employing real/complex-valued modulation alphabets.
Kuchi, Kiran
core   +2 more sources

A General Formulation for Least-Squares Problems [PDF]

open access: yes, 2004
— We show in this paper that many different least-squares problems which have applications in signal processing may be seen as special cases of a more general vector space minimization problem called the Minimum Norm problem.
A. D. Fagan, Mark Flanagan
core   +2 more sources

A Deep Learning Approach to Evaluating SISO-OFDM Channel Equalization

open access: yesWasit Journal of Engineering Sciences
Channel equalization is crucial to the efficiency of wireless network systems. To improve communication reliability and decrease computing complexity, 5G networks have made great progress with the help of deep learning (DL).
Saja S Hanoon   +2 more
doaj   +1 more source

Supervised identification and equalization of transmission channel using reproducing kernel Hilbert space

open access: yesРадіоелектронні і комп'ютерні системи, 2023
The subject matter of the article is to identify and equalize the parameters of telecommunication channels. The goal is to develop a new mathematical approach based on positive definite kernels on a Hilbert space.
Imad Badi   +4 more
doaj   +1 more source

Joint optimization of transceivers with fractionally spaced equalizers [PDF]

open access: yes, 2008
In this paper we propose a method for joint optimization of transceivers with fractionally spaced equalization (FSE). We use the effective single-input multiple-output (SIMO) model for the fractionally spaced receiver.
Vaidyanathan, P. P., Weng, Ching-Chih
core   +1 more source

Soft-Decision-Driven Sparse Channel Estimation and Turbo Equalization for MIMO Underwater Acoustic Communications

open access: yesIEEE Access, 2018
Multi-input multi-output (MIMO) detection based on turbo principle has been shown to provide a great enhancement in the throughput and reliability of underwater acoustic (UWA) communication systems.
Youwen Zhang   +2 more
doaj   +1 more source

MIMO pre-equalization and DFE for high-speed off-chip communication [PDF]

open access: yes, 2016
In this contribution, we present a multiple-input multiple-output (MIMO) transceiver scheme for high-speed chip-to-chip communication over low-cost electrical interconnects.
Guenach, Mamoun   +2 more
core   +1 more source

Design, comparative study and analysis of CDMA for different modulation techni

open access: yesEgyptian Informatics Journal, 2015
In this work, we have design a MIMO–CDMA using 4 ∗ 8 antennas with the combination of MMSE (Minimum Mean square Error Equalizer) for BPSK (Binary Phase shift Keying), QPSK (Quadrature Phase Shift Keying), 16-QAM, 64-QAM and 256-QAM (Quadrature Amplitude ...
Arun Kumar, Manisha Gupta
doaj   +1 more source

Equalization with oversampling in multiuser CDMA systems [PDF]

open access: yes, 2004
Some of the major challenges in the design of new-generation wireless mobile systems are the suppression of multiuser interference (MUI) and inter-symbol interference (ISI) within a single user created by the multipath propagation. Both of these problems
Vaidyanathan, P. P., Vrcelj, Bojan
core   +3 more sources

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