In this work, we proposed a new artificial bee colony–based spectrum handoff algorithm for
wireless cognitive radio systems. In our wireless cognitive radio system, primary users …

This paper proposes and analyses a set of novel and optimum multi-streaming techniques
for mmWave multi-input multi-output systems. It formulates an optimization problem that …

Cognitive radio technology can be utilized to make optimal use of spectrum. Spectrum
allocation is a critical operation for assigning appropriate idle-free frequency bands to the …

Cognitive radio networks are a promising technology for the improvement of the spectrum
utilisation. The basic idea is to maximise the utilisation of the available spectrum by …

Cognitive Radio is a promising technology to improve the spectrum utilization and ease the
shortage of spectrum resources, and the quality of spectrum allocation directly determines …

In the existing literature the forced termination probability is analyzed after the completion of
spectrum allocation (SA) process. Since the forced termination probability depends on the …

In this work, the spectrum handoff process carried out by secondary users according to
priority classes in cognitive radio networks is proposed. The network structure design of …

Cognitive radio has been regarded as a technology that guarantees a significant increase in
spectrum utilization efficiency. Depending on this technology; spectrum management …

With the rapid growth of wireless services and technologies, and as a result, increasing
demand for the spectrum, cognitive network (CN) has been proposed as a promising …

This paper addresses the problem of channel allocation in Cognitive Radio (CR) networks.
CR has been considered as a technology which improves spectrum utilization significantly …