Smart grid (SG) communication requires multilevel communication among multiple layers.
To handle this paramount spectrum requirement, cognitive radio network (CRN) is one of the …

Aiming at the problems of slow teaching resource sharing rate, long platform response time,
and low student learning efficiency in traditional ideological and political learning platforms …

Cognitive radio networks (CRNs) have allowed efficient spectrum sharing while also
presenting new challenges to the conventional problems of resource allocation and wireless …

The growing demand of radio spectrum to facilitate the primary/secondary users in a cellular
network is a challenging task. Many channel allocation models, applying cognition, have …

In this research paper, a cognitive radio network is proposed in order to deal with the
absence of spectrum resources. Spectrum sensing is an essential procedure in cognitive …