Dynamic spectrum access and cognitive radio (CR) are emerging technologies to utilize the
scarce frequency spectrum in an efficient and opportunistic manner. They have been …

Rapidly advancing technological advancements in the recent past has made the life of
consumers at ease through innovation of sophisticated and state of the art gadgets. The …

Owing to the opportunistic nature of its operation principle, the performance of Dynamic
Spectrum Access/Cognitive Radio (DSA/CR) systems depends on the spectrum occupancy …

This paper presents a novel pattern recognition approach to spectrum sensing in
collaborative cognitive radio systems. In the proposed scheme, discriminative features from …

CR (cognitive radio) is the key technology for unlicensed SUs (secondary users) to exploit
the unused spectrum of PUs (primary users) via opportunistic spectrum access. In this paper …

This paper explores the concept for dynamic spectrum allocation and investigates different
aspects of spectrum sensing in cognitive radio (CR) technology. CR systems are radios with …

Cognitive radio (CR) is an attractive approach to face the shortage in the electromagnetic
spectrum resources and improve the overall spectrum utilization. In this paper, two spectrum …

Due to the under-utilization problem of the allocated radio spectrum, cognitive radio (CR)
communications have recently emerged as a reliable and effective solution. Among various …

Spectrum sensing is a key aspect of Cognitive Radio (CR). The main requirement in CR
systems is the ability to sense the primary signal accurately and rapidly. In this paper, a …

Spectrum sensing is one of the most challenging issues in cognitive radio networks. It
provides protection to primary users (PUs) from interference and also creates opportunities …