Spectrum sensing is an essential function that enables cognitive radio technology to explore
spectral holes and resourcefully access them without any harmful interference to the …

In this paper we investigate the problem of cooperative spectrum sensing (CSS) in cognitive
radio networks (CRNs) in the presence of malicious attacks from secondary users (SUs). We …

Cognitive radio networks can improve the efficient use of spectrum through opportunistic
access to the licensed bands without interfering with the primary users. Spectrum sensing …

Spectrum sensing is an important issue in cognitive radio networks. But due to noise and
shadowing effects, the sensing results of sensors may be erroneous. This will degrade the …

Spectrum sensing is a key component of cognitive radio networks. Compared with the single
user spectrum sensing, cooperative spectrum sensing can detect the existence of the …

This letter proposes an enhanced scheme for cooperative spectrum sensing which utilizes
the signal to noise ratios to evaluate the degree of reliability of each local spectrum sensing …

We consider cooperative spectrum sensing in which multiple cognitive radios collaboratively
detect the spectrum holes through energy detection and investigate the optimality of …

The aim of cognitive radio is to obtain the best available spectrum through cognitive
capability and reconfigurability. Spectrum sensing is the key function of cognitive cycle. In …

Spectrum sensing is a fundamental function for cognitive radio network to protect
transmission of primary system. Cooperative spectrum sensing, which can help increasing …

Spectrum sensing is the key technology in cognitive radio systems. Generally, matched filter
detection, energy detection and feature detection are traditional scheme of spectrum …