NDLI: Reconfigurable Antenna and Dynamic Spectrum Access Algorithm: Integration in a Cognitive Radio Platform for Reliable Communications

Content Provider	Springer Nature Link
Author	Casado, Félix Torrego, Raúl Rodríguez, Pedro Arriola, Aitor Val, Iñaki
Copyright Year	2014
Abstract	Wireless communications provide many advantages for industrial applications; however, some problems regarding the reliability of the link must be dealt (e.g. wideband interferers or multipath fading). Cognitive Radio and Dynamic Spectrum Access are two of the technologies that enable the implementation of reliable communications. In order to ensure the reliability of the communication link, it is necessary to carry out a complete change of the transmission band, and not only small in-band changes. Therefore it has to be ensured that the new chosen band is uncorrelated with respect to the previous one, in terms of coherence bandwidth and RF interference. When performing a change in the transmission band the update of some parameters in the digital domain of the cognitive-radio is not enough, but it also requires the adjustment of the analog part, where the antenna element plays an important role. On this basis, this paper presents the integration of a frequency reconfigurable antenna and a Dynamic Spectrum Access algorithm in an FPGA-based cognitive-radio platform for reliable communications. The reconfigurable antenna and the DSA algorithm, together with a commercial adjustable RF front-end, make the system capable of performing both in-band and dual-band channel change in the Industrial, Scientific and Medical (ISM) bands of 868 MHz and 2.45 GHz.
Starting Page	267
Ending Page	274
Page Count	8
File Format	PDF
ISSN	19398018
Journal	Journal of Signal Processing Systems
Volume Number	78
Issue Number	3
e-ISSN	19398115
Language	English
Publisher	Springer US
Publisher Date	2014-07-09
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	SDR CR Reconfigurable antennas Signal, Image and Speech Processing Circuits and Systems Electrical Engineering Image Processing and Computer Vision Pattern Recognition Computer Imaging, Vision, Pattern Recognition and Graphics
Content Type	Text
Resource Type	Article
Subject	Theoretical Computer Science Signal Processing Control and Systems Engineering Information Systems Modeling and Simulation Hardware and Architecture

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