Spectrum decision is the ability of a cognitive radio (CR) system to select the best available
spectrum band to satisfy dynamic spectrum access network (DSAN) users' quality of service …

Cognitive Radio (CR) helps to allocate the available Radio Frequency (RF) spectrum of an
essential (authorized) client and an auxiliary client. In the cognitive radio technology also …

In this article, the spectrum trading problem between primary users and secondary networks
is investigated. The secondary network requests multiple channels with the targeted …

Providing adequate and reliable spectrum resources for unlicensed users in spectrum
database-based cognitive radio networks is very challenging, mainly due to the dynamic …

The growing problem of spectrum scarcity and the inefficient spectrum utilization in the
licensed bands, are addressed by the emerging Cognitive Radio (CR) paradigm. It is seen …

Studies showed that the static nature of the traditional spectrum allocation methods,
currently being used to share the radio spectrum, resulted in a plenty of unused spectrum …

There has been an exponential increase in spectrum demands due to new emerging
wireless services and applications, making it harder to find unallocated spectrum bands for …

This paper addresses the resource allocation problem for small cells in the two-tier
heterogeneous networks (HetNets) with non-independent resource blocks (RBs) usability …

Allowing Secondary Users (SUs) to access the licensed spectrum without causing harmful
interference to the Primary Users (PUs) is crucial in enabling the Cognitive Radio (CR) …

Abstract The advent of Cognitive Radio (CR) technology has significantly enhanced the
efficiency and effectiveness of spectrum utilization. In Cognitive Radio Networks (CRNs) …