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Adaptive evolutionary spectrum analysis for narrow band signals
ICASSP '87. IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005This paper presents several structures for Adaptive Notch Filters and implementation aspects of constrained ARMA models. These ANF suit very well to evolutionary spectrum analysis for sinusoidal signals in additive noise. colored or white. Several estimation algorithms may be applied with these structures (ELS,RML,RIV) and some special procedures may ...
Nacer K. M'Sirdi, I. D. Landau
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Cognitive Radio, Spectrum, and Evolutionary Heuristics
IEEE Communications Magazine, 2018Shortage of free spectrum is a critical problem in deploying new wireless systems, and no standard frequency assignment mechanism exists for cognitive radio systems at present. In this tutorial, we treat that problem in a holistic way, as a part of solving a puzzle of selection of changeable characteristics of system devices.
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Sonar spectrum recognition chip designed by evolutionary algorithm
IJCNN'99. International Joint Conference on Neural Networks. Proceedings (Cat. No.99CH36339), 2003An evolutionary design methodology for sonar spectrum recognition chip is proposed and the prototype chip is developed. In the design, sonar spectrum data are transformed to truth-tables and the truth-tables are evolved to obtain generalization capability by using genetic algorithms.
Moritoshi Yasunaga +2 more
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Channel modeling for spread spectrum via evolutionary transform
2004 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2004Given the importance of direct sequence spread spectrum (DSSS) communications, the modeling of its transmission channel is of great interest. Due to multipath and Doppler effects in the transmission channel, the transmitted signal is spread in both time and frequency.
Luis F. Chaparro, Abdullah Ali Alshehri
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The estimation of evolutionary spectrum by square-root filtering algorithm
ICASSP '87. IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005This paper deals with the spectrum estimation of a kind of nonstationary stochastic process, the oscillating process. For time-varying model parameters of evolutionary spectrum, which has been supposed to follow sample-wise random walk model, we adopt recursive algorithm to estimate them.
Yong Bin Chen, Yu Qing Gao
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Evolutionary Search for Energy-Efficient Distributed Cooperative Spectrum Sensing
2020 International Conference on Computing, Networking and Communications (ICNC), 2020This paper concerns the energy efficiencyoptimization for distributed cooperative spectrum sensing. In the considered distributed spectrum sensing system, each sensor measures the local test statistic for the target spectrum bands and these measurements will be combined together through a weighted consensus protocol.
He Jiang 0004 +3 more
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[Evolutionary psychiatry applied to autism spectrum disorder].
Tijdschrift voor psychiatrie, 2023Considering an evolutionary perspective, psychiatric conditions present us with a paradox. How can the high prevalence of those conditions be explained, given the importance of genetic factors in many of them? Evolutionary principles predict that traits with an adverse effect on reproduction undergo negative selection.To try to formulate an answer to ...
K, Hendrickx +2 more
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Evolutionary algorithm for dynamic spectrum allocation in cognitive radio system
2016 4th IEEE International Colloquium on Information Science and Technology (CiSt), 2016Today, Cognitive radio (CR) is found to be the key technology to exploit the unused available spectrum resources; it can sense and use spectrum in an opportunistic manner without creating any harm to cognitive users. In this paper, we develop a cognitive radio access strategy based on the implementation of a dynamic genetic algorithm for CR.
Jamal Elhachimi, Zouhair Guennoun
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The Evolutionary Etiologies of Autism Spectrum and Psychotic Affective Spectrum Disorders
2016Risks of human psychiatric conditions have evolved, and their symptoms represent perturbations to adaptive cognitive and affective systems. Evolutionary considerations are useful in this context because they direct us to the identification of specific human adaptations that become dysregulated in disease, though either underdevelopment or ...
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Strategy Analysis of an Evolutionary Spectrum Sensing Game
2014Evolutionary game has been shown to greatly improve the spectrum sensing performance in cognitive radio. However, as selfish users are shortsighted for the long-term profits, they are not willing to collaborate to sense. In this paper, we propose an evolutionary spectrum sensing game to improve the long-term spectrum utilization.
Dongsheng Ding +3 more
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