Spectrum Sensing with Multiple Primary Users over Fading Channels

TL;DR

This paper derives new formulas for energy detector performance in spectrum sensing with multiple primary users over Nakagami-m fading channels, highlighting the importance of environmental factors in detection accuracy.

Contribution

It provides novel closed-form expressions for false-alarm and detection probabilities considering multiple PUs and fading, enhancing spectrum sensing analysis.

Findings

Closed-form expressions for detection probabilities

Impact of fading on spectrum sensing performance

Guidelines for ED threshold selection

Abstract

We investigate the impact of multiple primary users (PUs) and fading on the spectrum sensing of a classical energy detector (ED). Specifically, we present novel closed-form expressions for the false-alarm and detection probabilities in a multiple PUs environment, assuming Nakagami-m fading and complex Gaussian PUs transmitted signals. The results reveal the importance of taking into consideration the wireless environment, when evaluating the ED spectrum sensing performance and selecting the ED threshold.