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- research-articleNovember 2024
Estimating a signal subspace in the presence of impulsive noise
AbstractWe consider the problem of estimating a signal subspace in the presence of interference that contaminates some proportion of the received observations. Our emphasis is on detecting the contaminated observations so that the signal subspace can be ...
- research-articleOctober 2024
Differential privacy for diffusion LMS algorithm over a distributed network
AbstractThis article presents a way to improve the Diffusion LMS algorithm in practical scenarios while maintaining data privacy. It focuses on reducing external errors and ensuring accurate estimation of the parameter vector through distributed and ...
- research-articleJuly 2024
Switching Step-Size Based Widely Linear Adaptive Filtering Algorithms
Circuits, Systems, and Signal Processing (CSSP), Volume 43, Issue 11Pages 7401–7421https://doi.org/10.1007/s00034-024-02786-zAbstractThe widely linear complex-valued least mean square (WL-CNLMS) algorithm is extensively used for processing complex-valued signals, but it exists performance compromise between convergence rate and steady-state misadjustment. In response to this ...
- research-articleJuly 2024
A robust active noise control system based on an exponential hyperbolic cosine norm
AbstractThe performance of conventional active noise control (ANC) systems degrades under non-Gaussian conditions. In the recent past, generalized filtered-x maximum correntropy criterion (FxGMCC) algorithm has been widely used to tackle such non-...
Highlights- A robust FxEHCAF algorithm based ANC technique is proposed.
- Affine-FxEHCAF algorithm for enhanced noise control is also proposed.
- The theoretical analysis of FxEHCAF and Affine-FxEHCAF are carried out.
- Proposed algorithms ...
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- research-articleJuly 2024
A variable diagonal-matrix-step-size APA robust to impulsive noises
AbstractThis study introduces a variable diagonal-matrix-step-size affine projection algorithm (APA), which shows robustness against to impulsive noises. Unlike the normal scalar step-size method, the independent step size for each input vector is used ...
Highlights- Novel robust affine projection algorithm for recursive estimation.
- Efficient system identification algorithm in an impulsive noise environment.
- Calculation of optimal step size that improves convergence performance.
- Adaptive ...
- research-articleJune 2024
Robust Equalizer Based on New Lower-Order Statistic Under Impulsive Noise Cases
Circuits, Systems, and Signal Processing (CSSP), Volume 43, Issue 10Pages 6537–6552https://doi.org/10.1007/s00034-024-02755-6AbstractDigital communication systems usually suffer from two factors: inter-symbol interference and impulsive noise. To improve the performance of communication receivers, this paper proposes a good solution to a linear blind equalizer. Firstly, a new ...
- research-articleJune 2024
A Proportionate Maximum Total Complex Correntropy Algorithm for Sparse Systems
Circuits, Systems, and Signal Processing (CSSP), Volume 43, Issue 10Pages 6415–6436https://doi.org/10.1007/s00034-024-02752-9AbstractWhile the practical application of adaptive filters has indeed garnered substantial attention, two pressing issues persist that have a profound impact on their performance—system sparsity and the presence of contaminated Gaussian impulsive noise. ...
- research-articleJune 2024
Distributed Active Noise Control Employing Swish Framework Integrated with Diffusion Adaptive Techniques
Circuits, Systems, and Signal Processing (CSSP), Volume 43, Issue 9Pages 5850–5877https://doi.org/10.1007/s00034-024-02734-xAbstractThe filtered-x least mean square (F-xLMS) technique dependent distributed active noise control (DANC) system is less effective against outliers and disturbances that represent impulses. In such an environment, DANC algorithms based on Swish ...
- research-articleJuly 2024
Robust multimodulus blind equalization algorithm for multilevel QAM signals in impulsive noise
AbstractAs a blind equalization algorithm, the fractional lower-order statistics based multimodulus algorithm (FLOS-MMA) is suitable for equalizing multilevel quadrature amplitude modulation (QAM) signals in impulsive noise. However, the equalization ...
- research-articleApril 2024
Sparsity-aware distributed adaptive filtering with robustness against impulsive noise and low SNR
- Rafael Moura do Carmo,
- Guilherme de R. Ferreira,
- Pedro Henrique Campelo,
- Leonardo C. Resende,
- Leonardo de Lima,
- Felipe da Rocha Henriques,
- Diego Barreto Haddad
Telecommunications Systems (TESY), Volume 86, Issue 3Pages 451–461https://doi.org/10.1007/s11235-024-01124-7AbstractDistributed inference tasks could be performed by adaptive filtering techniques. Several enhancement strategies for such techniques were proposed, such as sparsity-aware algorithms, coefficients reuse and correntropy-based cost functions in the ...
- research-articleMarch 2024
Robust Variable Step Size Widely Linear Complex-Valued Least Mean M-estimate Adaptive Algorithm: Derivation and Performance Analysis
Circuits, Systems, and Signal Processing (CSSP), Volume 43, Issue 6Pages 3888–3908https://doi.org/10.1007/s00034-024-02637-xAbstractIn the past decade, the augmented complex-valued least mean square adaptive filtering algorithm based on the minimum mean square error criterion and widely-linear model has attracted much attentions due to its simplicity and applicability to non-...
- research-articleApril 2024
An Enhanced Multi-target Multi-Bernoulli Particle Filtering for Direction of Arrival Tracking in the Presence of Impulsive Noise
Wireless Personal Communications: An International Journal (WPCO), Volume 135, Issue 1Pages 141–162https://doi.org/10.1007/s11277-024-11069-4AbstractIn the scerinao of impulsive noise, this paper proposes a multi-Bernoulli enhanced auxiliary particle filtering (MB-EAPF) algorithm for multi-source direction of arrival tracking by utilizing uniform linear array configuration. By proposing an ...
- research-articleFebruary 2024
Constrained squared sine derived adaptive algorithm: Performance and analysis
AbstractA constrained squared sine derived adaptive (CSSDA) algorithm is proposed in this paper, which provides better steady-state behavior than existing algorithms in impulsive noise environments. The devised CSSDA works by constructing a squared sine ...
- extended-abstractJanuary 2024
Enhancing Federated Learning Robustness in Wireless Networks
CODS-COMAD '24: Proceedings of the 7th Joint International Conference on Data Science & Management of Data (11th ACM IKDD CODS and 29th COMAD)Pages 597–598https://doi.org/10.1145/3632410.3632496To harness the benefits of machine learning (ML), users often face the challenge of sharing their private data with a central entity for model training. However, data sharing can be impractical due to privacy concerns, data size, wireless resource ...
- research-articleFebruary 2024
An efficient equalizer for the impulsive noise environment
AbstractIn some communication systems, the transmitted signal is contaminated by impulsive noise with a non-Gaussian distribution, which usually causes significant performance degradation to communication receivers. To deal with the impulsive noise, this ...
- ArticleNovember 2023
Single Feedback Based Kernel Generalized Maximum Correntropy Adaptive Filtering Algorithm
AbstractThis paper presents a novel single feedback based kernel generalized maximum correntropy (SF-KGMC) algorithm by introducing a single delay into the framework of kernel adaptive filtering. In SF-KGMC, the history information implicitly existing in ...
- research-articleFebruary 2024
Sparse q-Laplace kernel online prediction for indoor localization in the Internet of Things
Engineering Applications of Artificial Intelligence (EAAI), Volume 126, Issue PDhttps://doi.org/10.1016/j.engappai.2023.107144AbstractAs an important component of IoT-oriented applications, the indoor positioning estimation is getting increasing concern with IoT’s rapid development. However, the performance of indoor positioning is heavily relied on the complexity of the ...
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- research-articleNovember 2023
A robust direction-of-arrival estimation method for impulsive noise environments
Highlights- A robust direction-of-arrival estimation method for impulsive noise environments. This algorithm is robust to the probability density function of impulsive ...
The performance of conventional direction-of-arrival (DOA) estimation methods degrades greatly when there are few snapshots and the noise model is mismatched, especially in impulsive noise environments. To solve this problem, this ...
- research-articleOctober 2023
A Lorentzian-ℓ p norm regularization based algorithm for recovering sparse signals in two types of impulsive noise
Journal of Computational and Applied Mathematics (JCAM), Volume 430, Issue Chttps://doi.org/10.1016/j.cam.2023.115251AbstractIn this paper, we present a Lorentzian-ℓ p ( 0 < p < 1 ) optimization for recovering sparse signals from measurements corrupted by two types of impulsive noise. A smoothing strategy for nonconvex ℓ p norm is employed and an efficient ...