Research Article
A Hardware Prototype of a Flexible Spectrum Sensing Node for Smart Sensing Networks
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@INPROCEEDINGS{10.1007/978-3-319-24540-9_32, author={Ahmed Elsokary and Peter Lohmiller and V\^{a}clav Valenta and Hermann Schumacher}, title={A Hardware Prototype of a Flexible Spectrum Sensing Node for Smart Sensing Networks}, proceedings={Cognitive Radio Oriented Wireless Networks. 10th International Conference, CROWNCOM 2015, Doha, Qatar, April 21--23, 2015, Revised Selected Papers}, proceedings_a={CROWNCOM}, year={2015}, month={10}, keywords={Spectrum sensing Multiband Cognitive radio FPGA implementation Hardware prototype Periodogram PSD FFT}, doi={10.1007/978-3-319-24540-9_32} }- Ahmed Elsokary
Peter Lohmiller
Václav Valenta
Hermann Schumacher
Year: 2015
A Hardware Prototype of a Flexible Spectrum Sensing Node for Smart Sensing Networks
CROWNCOM
Springer
DOI: 10.1007/978-3-319-24540-9_32
Abstract
In this paper we present a prototype for a spectrum sensing node for a cognitive radio sensing network. Our prototype consists of a custom down-conversion front-end with an RF input frequency range from 300 MHz to 3 GHz and a Power Spectral Density (PSD) estimation algorithm implemented on a Virtex-6 Field Programmable Gate Array (FPGA). The base-band processing part is capable of calculating the PSD for a bandwidth upto 245.76 MHz achieving a resolution of 60 kHz and an online variable averaging functionality with a maximum of 32767 averages. Real time performance and calculation of the PSD for real world signals in the GSM downlink, DECT and the UHF DVB-T bands is demonstrated.
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