Results 21 to 30 of about 243,165 (311)

Mutual Information and Minimum Mean-Square Error in Gaussian Channels [PDF]

open access: yesIEEE Transactions on Information Theory, 2005
This paper deals with arbitrarily distributed finite-power input signals observed through an additive Gaussian noise channel. It shows a new formula that connects the input-output mutual information and the minimum mean-square error (MMSE) achievable by optimal estimation of the input given the output. That is, the derivative of the mutual information (
Dongning Guo   +2 more
openaire   +2 more sources

Validating linear restrictions in linear regression models with general error structure [PDF]

open access: yes, 2006
A new method for testing linear restrictions in linear regression models is suggested. It allows to validate the linear restriction, up to a specified approximation error and with a specified error probability.
Holzmann, Hajo   +2 more
core   +1 more source

Receiver multiuser diversity aided multi-stage minimum mean-square error detection for heavily loaded DS-CDMA and SDMA systems [PDF]

open access: yes, 2010
By investigating the conditions required for successive interference cancellation multiuser detectors (SIC-MUD) to achieve near-optimum BER performance, we propose and investigate a so-called receiver multiuser diversity aided multi-stage minimum mean ...
Yang, Lie-Liang, Lie-Liang Yang
core   +1 more source

Zero-Forcing and Minimum Mean-Square Error Multiuser Detection in Generalized Multicarrier DS-CDMA Systems for Cognitive Radio

open access: yesEURASIP Journal on Wireless Communications and Networking, 2008
In wireless communications, multicarrier direct-sequence code-division multiple access (MC DS-CDMA) constitutes one of the highly flexible multiple access schemes.
Lie-Liang Yang, Li-Chun Wang
doaj   +2 more sources

Poisson-Gaussian Noise Reduction for X-Ray Images Based on Local Linear Minimum Mean Square Error Shrinkage in Nonsubsampled Contourlet Transform Domain

open access: yesIEEE Access, 2021
Noise reduction is important for X-ray images because it can reduce radiation exposure to patients. X-ray image noise has a Poisson-Gaussian distribution, and recently, noise analysis and removal in multiscale transformations have been widely implemented.
Sangyoon Lee, Moon Gi Kang
doaj   +1 more source

Minimum Mean Squared Error interference alignment [PDF]

open access: yes2009 Conference Record of the Forty-Third Asilomar Conference on Signals, Systems and Computers, 2009
To achieve the full multiplexing gain of MIMO interference networks at high SNRs, the interference from different transmitters must be aligned in lower-dimensional subspaces at the receivers. Recently a distributed “max-SINR” algorithm for precoder optimization has been proposed that achieves interference alignment for sufficiently high SNRs.
David A. Schmidt   +4 more
openaire   +1 more source

Adaptive minimum error-rate filtering design: a review

open access: yes, 2008
Adaptive filtering has been an enabling technology and has found ever-increasing applications in various state-of-the-art communication systems. Traditionally, adaptive filtering has been developed based on the Wiener or minimum mean square error (MMSE ...
Sheng Chen   +7 more
core   +1 more source

Mean square cross error: performance analysis and applications in non-Gaussian signal processing

open access: yesEURASIP Journal on Advances in Signal Processing, 2021
Most of the cost functions of adaptive filtering algorithms include the square error, which depends on the current error signal. When the additive noise is impulsive, we can expect that the square error will be very large.
Yunxiang Zhang   +3 more
doaj   +1 more source

Direct normal irradiance predictions using broadband models for Indian stations

open access: yesEnergy Reports, 2020
In this paper three parametric models CPCR2, MLWT2 and REST have been used to compute direct normal irradiance (DNI) for five Indian stations, namely New Delhi, Pune, Jaipur, Kolkata and Mumbai.
Laxmi Narain Rohilla, Dinesh Kumar Singh
doaj   +1 more source

A transceiver design based on uniform channel decomposition and MBER vector perturbation [PDF]

open access: yes, 2010
Uniform channel decomposition (UCD), as an improvement of geometric mean decomposition (GMD), is capable of decomposing a multiple-input–multiple-output (MIMO) channel into multiple subchannels having an identical capacity.
Chen, Sheng   +5 more
core   +1 more source

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