Aiming at the problem that the location of the secondary base station affects the interference
between the primary and secondary systems directly and the reasonable allocation of …

The Internet of Things (IoT) is the interconnection of different objects through the internet
using different communication technologies. The objects are equipped with sensors and …

Cognitive radio networks will play an important role in the future wireless networks. In this
paper, an improved ant colony optimization algorithm is proposed to increase the spectrum …

Cognitive radio is a next generation technology of wireless communication system and the
limitations of conventional wireless networks are overcome by cognitive techniques. The …

Considering the interference power threshold of the primary users (PUs) in the cognitive
radio network, the transmission rate limitation of the secondary users (SUs) and the signal to …

With the rapid growth of wireless terminal access demand, the spectrum resources are
becoming more and more scarce. However, the spectrum utilization is at a low level, using …

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 …

Both the internet-connected devices, ie IoT and Cognitive Radio Network (CRN) are
considered to be the future technologies for the fifth generation of cellular wireless standards …

Cognitive radio network (CRN) is considered to be the future technology for the fifth
generation of cellular wireless standards (5G). CRN is based on a complex spectrum …

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 …