In the context of wireless communication, Cognitive Radio has been proposed to ensure an
optimal use of the spectrum. It divides the communication transceivers into two categories …

Nowadays, cognitive radio is one of the most promising paradigms in the arena of wireless
communications, as it aims at the proficient use of radio resources. Proper utilization of the …

Spectrum sensing has been identified as a key enabling cognitive radio (CR) to not interfere
with primary users, by reliability detecting primary users' signals. Based on the …

In order to avoid packet collisions in wireless communications, cognitive radio users require
spectrum sensing to increase their awareness. Spectrum sensing methods must show good …

The spectrum sensing problem has gained new aspects with cognitive radio and
opportunistic spectrum access concepts. It is one of the most challenging issues in cognitive …

Spectrum sensing is one of the most important and challenging tasks in cognitive radio. To
develop methods of dynamic spectrum access, robust and efficient spectrum sensors are …

Spectrum sensing has been identified as a key enabling functionality to ensure that
cognitive radios would not interfere with primary users, by reliably detecting primary user …

Spectrum scarcity is impeding practical implementations of emerging wireless multimedia
applications requiring significantly more frequency spectrum. Cognitive radio (CR) has …

Cognitive radios represent a promising technique to address the problem of efficient
spectrum utilisation. However, their performance is limited by their capability to sense the …

Radio spectrum is not efficiently used, mainly due to the prevailing rigid frequency allocation
policy. Only some bands of the spectrum-such as those bands used by cellular base stations …