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Cooperative Spectrum Sensing Over Rayleigh Fading Channel

  • Chilakala SudhamaniEmail author
  • M. Satya Sai Ram
Conference paper
Part of the Lecture Notes in Networks and Systems book series (LNNS, volume 33)

Abstract

Cooperation among secondary users improves the spectrum sensing performance by allowing local decisions measured over independent sensing channels. This reduces the miss detection and false alarm probabilities. Most of the works in cooperative spectrum sensing techniques assume perfect channels between the cooperating secondary users. In this paper, we considered the effect of imperfect channels. Total error rate and success probabilities are calculated for an additive white Gaussian noise channel and a Rayleigh fading channel. The optimal number of cooperative secondary users is estimated over nonfading and fading channels. Simulation results show the variation of success probability with respect to channel imperfection for different number of secondary users. This is useful for identifying the unutilized spectrum.

Keywords

Cognitive radio Cooperative spectrum sensing Rayleigh fading channel Channel imperfection 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.Department of Electronics and Communication EngineeringCMR Technical CampusHyderabadIndia
  2. 2.Department of Electronics and Communication EngineeringChalapathi Institute of Engineering and TechnologyGunturIndia

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