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Accuracy Analysis of 5-Bit Data and Decision Fusion Strategies in Cognitive Radio Networks

Author Affiliations

  • 1 Department of Electronics and Communication, Acropolis Institute of Technology And Research, Indore, INDIA

Res. J. Engineering Sci., Volume 3, Issue (10), Pages 7-15, October,26 (2014)

Abstract

Cognitive radio allows unlicensed users to access licensed frequency bands through dynamic spectrum access so as to reduce spectrum scarcity. This requires intelligent spectrum sensing techniques like co-operative sensing which makes use of information from number of users. This paper investigates the use of energy detector and its simulation in MATLAB for licensed user detection. Simulation results show that implementing cooperative spectrum sensing help in better performance in terms of detection. Quantized combination scheme provides a better compromise between detection performance and complexity. This paper is further extended to the 5 bit data and decision fusion. Simulation results shows the accuracy of 5-bit decision at variable SNR values.

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