Design and Experimentation of an Energy Detector for FM Radio Signals in Cognitive Radio
Andy Vega-León1, Francisco Narváez2, Juan Ochoa-Aldeán3
1Andy Vega-León. Engineer in Electronics and Telecommunications, National University of Loja, Loja, Ecuador.
2Francisco Narváez, Engineer in Electronics and Telecommunications, Loja, Ecuador.
3Juan Ochoa-Aldeán, Engineer in Electronics and Telecommunications, National University of Loja, Loja, Ecuador.
Manuscript received on December 03, 2018. | Revised Manuscript received on December 12, 2018. | Manuscript published on December 15, 2018. | PP: 12-17 | Volume-5, Issue-9, December 2018. | Retrieval Number: I1093015919/19©BEIESP
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The present work shows the design of an energy detector, which is intended to measure the energy contained in FM radio frequency signals in the city of Loja generating prior information for the possible action of a Cognitive Radio transmission system (RC ) in that band. The computer tool used to achieve the proposed design is MATLAB. For its operation and interaction with the FM electromagnetic environment, previous data derived from the spectral evaluation carried out in preliminary studies executed within the reference city are included. At the end of the work, a view of the behavior of the detector with real signals is obtained, allowing to obtain detailed data that evidences the spectral underutilization in this communication band opening possibilities of spectral optimization through RC.
Keywords: Spectrum, Energy, Radio, Cognitive, Frequency.