Cognitive radio is a promising paradigm to achieve efficient utilization of spectrum resource
by allowing the unlicensed users (ie, secondary users, SUs) to access the licensed …

In a cognitive radio network, frequency spectrum can be shared between primary (or
licensed) users and secondary (or unlicensed) users, where the secondary users pay the …

Cognitive radio has emerged as a new design paradigm for the next-generation wireless
networks. Cognitive radio networks are designed based on the concept of dynamic spectrum …

We address the problem of spectrum pricing in a cognitive radio network where multiple
primary service providers compete with each other to offer spectrum access opportunities to …

Cognitive radio is emerging as a promising technique to improve the utilization of the radio
frequency spectrum. In this paper, we consider the problem of spectrum sharing among …

" Cognitive radio" is an emerging technique to improve the utilization of radio frequency
spectrum in wireless networks. In this paper, we consider the problem of spectrum sharing …

We consider the problem of spectrum trading with multiple licensed users (ie, primary users)
selling spectrum opportunities to multiple unlicensed users (ie, secondary users). The …

Dynamic spectrum leasing (DSL) was proposed recently as a new paradigm for dynamic
spectrum sharing (DSS) in cognitive radio networks (CRN's). In this paper, we propose a …

Extensive research in recent years has shown the benefits of cognitive radio technologies to
improve the flexibility and efficiency of spectrum utilization. This new communication …

Cognitive radio (CR) technology is considered to be an effective solution to enhance overall
spectrum efficiency, whereas a primary radio network (PRN) typically does not fully utilize an …