n this paper, we propose an analytical framework for analysis and design of cooperative spectrum sensing methods over correlated Log-Normal shadow-fading environments, when each cooperative user makes use of a simple Amplify and Forward (AF) relaying mechanism to send the detected signal to a sink node. We will show that the framework requires efficient and accurate methods for modeling the power-sum of correlated Log-Normal Random Variables (RVs), which well describe shadowing phenomena, and propose novel approximation methods to efficiently solve this problem. Numerical results will be shown to substantiate the proposed framework.

Cooperative Spectrum Sensing for Cognitive Radios: Performance Analysis for realistic System Setups and Channel Conditions

GRAZIOSI, FABIO;SANTUCCI, FORTUNATO;
2009-01-01

Abstract

n this paper, we propose an analytical framework for analysis and design of cooperative spectrum sensing methods over correlated Log-Normal shadow-fading environments, when each cooperative user makes use of a simple Amplify and Forward (AF) relaying mechanism to send the detected signal to a sink node. We will show that the framework requires efficient and accurate methods for modeling the power-sum of correlated Log-Normal Random Variables (RVs), which well describe shadowing phenomena, and propose novel approximation methods to efficiently solve this problem. Numerical results will be shown to substantiate the proposed framework.
2009
3-642-03818-2
978-3-642-03818-1
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11697/27219
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