The article analyzes the problem of energy efficient techniques in cooperative spectrum
sensing (CSS). Although it was proven that single-device sensing is not sufficient for reliable …

Energy harvesting (EH) and spectrum harvesting (SH) are two promising and useful green
communication and networking mechanisms for the next-generation wireless networks …

Cognitive radio sensor network (CRSN) is a combination of wireless sensor network (WSN)
and opportunistic spectrum access technology. It involves the issues related to energy and …

Practical cognitive radio networks (CRNs) would have users with different capabilities and
access levels to prior information about the primary users (PUs). For instance, some users …

Clustering organizes nodes into groups in order to enhance the connectivity and stability of
cognitive radio sensor networks. Mainly depending on the channel availability, many …

Cooperative spectrum sensing (CSS) adopted by spectrum-sensing providers (SSPs) plays
a key role for dynamic spectrum access and is essential for avoiding interference with …

Due to the fast-growing usage of wireless devices, cognitive radio networks have been
proposed to address the spectrum scarcity problem. As the foundation of their practical …

The frequent movement of nodes in cognitive radio mobile ad hoc networks (CRAHNs)
causes challenges in scalability, stability, channel sensing and channel access problems …

Cognitive radio enables secondary users (SUs) to explore and exploit the underutilized
licensed channels (or white spaces) owned by the primary users. To improve the network …

Spectrum sensing in a cognitive radio network involves detecting when a primary user
vacates their licensed spectrum, to enable secondary users to broadcast on the same band …