For the last few decades, wireless communication has been facing a technological
revolution. High data rate and continuous connectivity are the necessities because the …

The collaboration of users in communication systems is defined as cooperative
communication. The cognitive radio, ie dynamic spectrum access technique, is a wireless …

Cognitive radio (CR) is proposed to solve the spectrum scarcity problem. One of the
significant issues which arises recently in CR networks is security threats. Most of the …

Security and privacy are crucial for cognitive sensor radio networks (CSRNs) due to the
possible eavesdropping between secondary sensors and the secondary fusion center …

We, the Editor and Publisher of the International Journal of Computers and Applications,
have retracted the following article which was part of the Special Issue on Advanced …

In cognitive wireless networks, secondary users gain access to the spectrum by identifying
and occupying primary users' frequency resources. However, Primary User Emulation Attack …

This paper illustrates the conception of networks, their primary goals (from day one to the
present), the changes it had to endure to get to its present form and the developments which …