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Algorithm for Sensor Exclusion and Dynamic Cluster Head Selection in Cognitive Radio Networks

Authors:
Alcides Mário Joaquim Tomás
José Marcos Camara Brito

Keywords: Cognitive radio network; cooperative spectrum sensing; energy detector; k-means clustering; network lifespan.

Abstract:
Cognitive Radio (CR) is a promising technology for optimizing spectrum utilization in wireless communication networks, particularly in fifth (5G) and sixth (6G) generationscenarios. In massive Internet of Things (IoT) environments, where numerous devices share network resources, reducing energy consumption is essential to extend the lifespan of both devices and the secondary network (CR network). This article proposes an algorithm that combines temporary and permanent sensor exclusion with the dynamic selection of Cluster Heads (CHs). The goal is to reduce energy consumption without compromising the system's detection capability, thereby ensuring greater network longevity. The simulations conducted prove that the proposed algorithm ensures robust and efficient detection, while significantly increasing the lifespan of the secondary network.

Pages: 5 to 10

Copyright: Copyright (c) IARIA, 2025

Publication date: May 18, 2025

Published in: conference

ISSN: 2308-3964

ISBN: 978-1-68558-275-3

Location: Nice, France

Dates: from May 18, 2025 to May 22, 2025