Time-critical and delay-sensitive multimedia applications require more spectrum and
transmission resources. With the provision of cognitive radios (CRs), the underutilized …

The stringent requirements of wireless multimedia transmission lead to very high radio
spectrum solicitation. Although the radio spectrum is considered as a scarce resource, the …

Cognitive radio (CR) is a communication that enables better utilization of radio spectrum.
Multi-hop CR network is an emerging area of interest for many researchers in recent years …

Cognitive radio (CR) with dynamic spectrum allocation (DSA) allows new or secondary
devices to opportunistically access a portion of spectrum, which belongs to primary …

OFDM has been the core technology of the fourth generation mobile communication due to
its strong ability to resist channel fading and high spectral efficiency. However, phase noise …

The increased usage of wireless communication has created a wireless frequency shortage
problem. Cognitive Radio (CR) has attracted public attention, as one of the solutions that …

In this paper we study and implement real-time adaptation schemes for video encoding and
channel selection that work in tandem to facilitate HD and 360° video streaming for …

The stringent requirements of wireless multimedia transmission lead to very high radio
spectrum solicitation. Although the radio spectrum is considered as a scarce resource, the …

In this paper, a system of centralized cooperative spectrum sensing is designed. Energy
detection and cyclostationary feature detection are used by Secondary User. The stepping …

Résumé Le nombre croissant d'applications des Réseaux de Capteurs Sans Fils (RCSFs) a
conduit les industriels à concevoir ces réseaux avec une couche Physique (PHY) suivant le …