Emerging wireless applications needs more spectrums space to tackle the rapid growth of
users. Outside of radio band in spectrum will be hard to utilize for data transmissions in …

In the future, the wireless network environment may suffer due to the unavailability of new
spectrum bands. Cognitive radio research considers the current spectrum underutilization …

In this paper, a novel multi-criteria channel decision model is developed by using the
Enhanced Technique for Order Preference by Similarity to Ideal Solution (E-TOPSIS). The …

Cognitive radio networks with cooperative communications can effectively improve spectrum
efficiency and data rate. Under this network scenario, there are three possible transmission …

Cognitive Radio (CR) is a communication technology developed to solve the problem of
spectrum scarcity. One way to improve the throughput of CR is the use of efficient decision …

In cooperative cognitive radio networks (CCRNs), resource allocation can be viewed as a
multi-objective optimization issue in terms of channel capacity as well as, among numerous …

We consider the problem of distributed channel selection in cognitive radio (CR) ad hoc
networks (CRAHNs) in which CRs have the capability of estimating the primary channel …

Cognitive radio (CR) is an emergent communication platform that offers solutions for
spectrum scarcity issues. Cognitive radio networks (CRNs) will offer increased bandwidth to …

Cognitive Radio Ad Hoc Networks (CRAHNs) constitute a viable solution to solve the current
problems of inefficiency in the spectrum allocation, and to deploy highly reconfigurable and …

Spectrum scarcity is one of the primary bottlenecks for the future wireless communication
systems, for better spectrum utilization cognitive radio plays a vital role. Cognitive radio is a …