Despite its practical performance limitations, energy detection has gained popularity during
the last years as a spectrum sensing technique for dynamic spectrum access in cognitive …

State of the art spectrum sensing methods evaluate sensing performance only based on
correct detection of the presence of the primary user's signal. As a first step, we propose a …

Cognitive radios grant opportunistic access to underutilized frequency bands for secondary
users and assure minimum interference for primary users' transmissions through a series of …

The radio spectrum is the most vital resource that needs to be efficiently utilized. The
cognitive radio technology has been proposed to overcome the problem of spectrum under …

For its simplicity and ease of implementation, Energy detection (ED) is attractive for spectrum
sensing in cognitive radio (CR) systems. In ED, the energy captured is compared against a …

Spectrum sensing is an important functionality of cognitive radio as a means to detect the
presence or absence of an existing user (EU), including the primary user or other secondary …

Cognitive radio is a promising solution to current problem of spectrum scarcity. It relies on
efficient spectrum sensing. Energy detection is the most dominantly used spectrum sensing …

The performance of a cognitive radio system depends on how well it can maximize the
usage of a free frequency band without causing any interference to the primary user. Thus …

As required in the IEEE 802.22 proposal, spectrum sensing techniques should be capable
enough to sense the primary signal with very low receiver sensitivity such as at-116 dBm. In …

In this paper we compare several popular and top performing spectrum sensing algorithms
for cognitive radio under low signal to noise ratio scenario, namely the Energy Detection, the …