A PSD Maps Estimation Algorithm for Underlay Cognitive Radio Networks Based on the Convolutional Neural Network
Joint Authors
Source
Mathematical Problems in Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-07-29
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
In the underlay cognitive radio networks (CRNs), the power spectral density (PSD) maps play a foundational role in detecting the idle radio resources.
However, it is hard to get a high-accurate PSD map estimation result because of the complicated radio environment.
For this reason, we propose a novel convolutional neural network- (CNN-) based PSD map estimation algorithm named map reconstruction CNN (MRCNN).
Using the CNN to estimate PSD maps for underlay CRNs has not been reported until now.
First, on the basis of the proposed color mapping process, we transform the PSD map estimation task to the image reconstruction task.
Then, we train the MRCNN to learn the radio environment characteristics from the training data, rather than making direct biased or imprecise wireless environment hypotheses as in the conventional methods.
We utilize the extracted knowledge in the training process to reconstruct the PSD map images.
As demonstrated in the simulations, the proposed MRCNN method has a better PSD map estimation performance than the conventional methods.
American Psychological Association (APA)
Han, Xu& Xue, Lei& Xu, Ying. 2020. A PSD Maps Estimation Algorithm for Underlay Cognitive Radio Networks Based on the Convolutional Neural Network. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1194885
Modern Language Association (MLA)
Han, Xu…[et al.]. A PSD Maps Estimation Algorithm for Underlay Cognitive Radio Networks Based on the Convolutional Neural Network. Mathematical Problems in Engineering No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1194885
American Medical Association (AMA)
Han, Xu& Xue, Lei& Xu, Ying. A PSD Maps Estimation Algorithm for Underlay Cognitive Radio Networks Based on the Convolutional Neural Network. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1194885
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1194885