무선 인지 네트워크에서 독립적인 스펙트럼 탐지 순서를 위한 프레임워크

Abstract

Spectrum sensing is a basic function of cognitive radio systems which detects spectrum holes. The spectrum sensing and spectrum access is a classic exploration vs. exploitation problem for cognitive radio overlay networks, where the unlicensed secondary users access the idle portion of licensed primary users. We propose a simple independent spectrum sensing architecture which can handle cooperative spectrum sensing for either coordinating or non-coordinating secondary users. The output hypotheses from secondary devices are combined by a simple algorithm to achieve better performance.