The Open Mechanical Engineering Journal

2014, 8 : 14-18
Published online 2014 March 21. DOI: 10.2174/1874155X01408010014
Publisher ID: TOMEJ-8-14

Optimization of Collaborative Spectrum Sensing Mechanism for Cognitive Radio

Zhigang Wen and Mingjun Mu
School of Electronic Engineering Beijing, University of Posts and Telecommunications, 100876, Beijing, P.R. China.

ABSTRACT

Cognitive radio (CR) is an emerging technology that helps efficiently use spectrum. In this paper, a collaborative spectrum sensing mechanism is proposed which combines passive detection and sensing service compensation. Theoretical analysis and simulations show that this method not only reduces the energy cost and the passive sensing time, but also maintains fairness in the CR communication systems.

Keywords:

Cognitive radio, Collaborative spectrum sensing, Detection time, Sensing mechanism.