Energy efficiency in cellular networks is a growing concern for cellular operators to not only
maintain profitability, but also to reduce the overall environment effects. This emerging trend …

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 …

When secondary users (SUs) in a cognitive radio network (CRN) are battery-powered
wireless devices, energy resources become very precious. Therefore, it is important that …

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 …

In order to perform reliable communications, a system needs to have sufficient information
about its operational environment, such as spectral resources and propagation …

Collaborative sensing also known as cooperative spectrum sensing (CSS) is an efficient
spectrum sensing technique to improve the sensing accuracy in cognitive radio (CR) …

Cooperative spectrum sensing (CSS) can resolve the hidden terminal problem in cognitive
radio (CR) networks. In CSS, the unlicensed users also known as secondary users (SUs) …

Non-cooperative scenarios in cognitive wireless sensor network (CWSN) are often
encountered with shadowing and hidden terminal issues. Cooperative spectrum sensing …

In order to improve the throughput of cognitive radio (CR), optimization of sensing time and
cooperative user allocation for OR-rule cooperative spectrum sensing was investigated in a …

The main challenge of Cognitive Radio (CR) is to identify the occurrence of primary users
(PU) effectively to mitigate interference with licenced communications. The occurrence of PU …