Cognitive radio (CR) is the next-generation communication system with high spectrum
utilization and efficiency. It is very crucial for CR to sense the environment spectrum holes …

The past decades witnessed the fast development of the wireless communication
technologies and its applications. However, the upgrading demand is contradictory to the …

Spectrum sensing is a fundamental problem in cognitive radio systems. Its main objective is
to reliably detect signals from licensed primary users to avoid harmful interference. As a first …

Spectrum sensing is a key task in any cognitive radio network. On the other hand, a literature
survey in this topic shows a lack of implementation and testbeds for spectrum sensing …

Cognitive radios (CR) are proposed to alleviate the spectrum scarcity problems facing
wireless service providers. In US, the FCC is considering spectrum regulation changes by …

Spectrum sensing plays an important role in cognitive radios because the secondary users
need to continuously monitor the spectrum for the presence of primary user. In this paper, we …

The problem in the process of spectrum sensing that the detection rate of the the primary
user (PU) signal is low in the environment of low signal-to-noise (SNR) is present, a novel …

With the rapid growth in wireless communication, the available spectrum is being congested
day by day. There has been increasing demand for proper utilization of the limited and …

The revolution in radio technology causes a lack of radio spectrum. Radio spectrum is a
limited is a limited source which is becoming denser day by day. Some of the radio …

As the mobile communication environments grow rapidly, much attention has been paid on
the use of spectrum resources. Recently, a new technology called Cognitive Radio (CR) was …