Cognitive radio is a form of wireless communication that makes decisions about allocating
and managing radio resources after detecting its environment and analyzing the parameters …

Internet of things (IoT) aims to shift intelligence to things and tends to increase the spectrum
utilization efficiency. However, in doing so, it might generate high interference to the primary …

In this article, a multiple relay selection (MRS) scheme for signal-to-noise ratio (SNR)
enhancement is proposed for underlay relay-assisted cognitive radio networks (RCRNs). A …

In wireless networks, field resources in terms of frequency and bandwidth availability are
increasingly scarce. Consequently, new solutions are required to minimize the energy …

In this paper, a transmit power-saving scheme incorporated with multiple relay-selection for
performance enhancement of underlay relay-assisted cognitive radio networks (RCRNs) is …

In cognitive radio networks, the real-time setting of the transmission parameters required by
the cognitive engine according to the quality of service requested by the cognitive users has …

Cognitive radio (CR) is a field which is gaining a lot of interest of researchers in around the
whole world. It is also termed as nextgen technology as it aims to solve the problem of …

Actuellement et dans le domaine des réseaux sans-fil, les ressources en termes de
disponibilité de fréquences et de bande passante sont de plus en plus rares. Par …

Application of wireless devices and their services are growing at fast speed in few years,
and because of this the demand of frequency resources has increased in a dramatic way …