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On the Throughput and Energy Consumption in External Sensing Cognitive Radio

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In recent year energy efficiency has become reproachful area for cognitive radio networks, as network become more and more energy-challenging. By considering the current issues like rising energy cost and environmental hazards, cognitive radio parameter is under the foreground of the analyst. The concept of Cognitive radio has encouraged the idea of vacant spectrum sharing. This requires reliable sensing so that it doesn’t create interference to primary users. However the process of sensing is difficult in fading environments. Thus cooperative sensing embarks upon the impact of fading and improves probability of detection. Though cooperatively sensed detection probability gets degraded in such low SNR environments. Earlier work suggested that by using external sensing the energy efficiency is improved. This paper investigates the influence of fading channels on external sensing in cooperative cognitive radio. Finally, we have presented the simulation results which outperforms in terms of probability of detection, Throughput and energy efficiency compared to internal sensing.
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Keywords: Cognitive Radio; Cooperative Spectrum Sensing; Energy Efficient; External Sensing

Document Type: Research Article

Affiliations: 1: Ramrao Adik Institute of Technology, Mumbai University, India 2: SGDCOE, North Maharashtra University, India 3: VJTI, Mumbai, India

Publication date: November 1, 2017

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  • ADVANCED SCIENCE LETTERS is an international peer-reviewed journal with a very wide-ranging coverage, consolidates research activities in all areas of (1) Physical Sciences, (2) Biological Sciences, (3) Mathematical Sciences, (4) Engineering, (5) Computer and Information Sciences, and (6) Geosciences to publish original short communications, full research papers and timely brief (mini) reviews with authors photo and biography encompassing the basic and applied research and current developments in educational aspects of these scientific areas.
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