ABSTRACT Cognitive Radio Networks (CRNs) are being studied intensively. The major
motivation for this is the heavily underutilized frequency spectrum. CRN has the capability to …

Cognitive radio networks (CRNs) have emerged as a promising solution to the ever-growing
demand for additional spectrum resources and more efficient spectrum utilization. A large …

Cognitive Radio Networks (CRNs) have been receiving significant research attention due to
their ability to address the problems related with the usage ofprecious' spectrum. Majority of …

Advancement of Cognitive Radio technology can remedy the problems encountered from
bandwidth and spectrum access limitations. In Cognitive Radio Ad Hoc Networks routing is …

Cognitive radio networks (CRNs) are composed of cognitive, spectrum-agile devices
capable of changing their configurations on the fly based on the spectral environment. This …

Abstract Cognitive Radio Networks (CRNs) have been receiving significant research
attention recently due to their ability to solve issues associated with spectrum congestion …

Cognitive radio (CR) technology is introduced to solve the problem of spectrum under-
utilization in wireless networks by opportunistically exploiting portions of the spectrum …

Cognitive Radio is a technology that has emerged to solve the problem of frequency
resources underutilization caused by the non-use of a large part of radio spectrum …

Routing in cognitive radio networks (CRNs) necessitates a cross-layering approach.
However, according to [1], CRN routing protocols proposed in literature are partially cross …

The majority of work in cognitive radio networks have focused on single-hop networks with
mainly challenges at the physical and MAC layers. Recently, multi-hop secondary networks …