Cognitive radio ad hoc networks (CRAHNs) are a class of cognitive radio networks. In recent
years, they have gained popularity, and routing protocols have been proposed. Above all …

Cognitive radio has become a promising technology in recent times as it facilitates the
opportunistic use of the frequency spectrum, a precious resource in the communications …

Although more than a decade has passed from the proposal of the Cognitive Radio
paradigm, in these years the research has mainly focused on physical and medium access …

This paper deals with the routing in cognitive mobile ad hoc networks. We propose to modify
the widely adopted Ad-hoc On-demand Distance Vector (AODV) protocol in order to assure …

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 ad hoc networks (CRAHNs) are active, self-organized, and dynamic
networks, in which cognitive users can communicate with each other in an ad hoc fashion …

A cognitive radio is designed for the utilisation of unused frequency. The transmission
opportunity of a cognitive node is not guaranteed due to the presence of primary users …

Cognitive radio ad hoc networks (CRAHNs) are multi-hop, dynamic and self-configurable
networks, which can communicate without any infrastructure support. Most of the research in …

Cognitive radio (CR) is viewed as the empowering innovation of the dynamic spectrum
access (DSA) model which is imagined to take care of the present spectrum scarcity issue by …

Two main issues affect the existing routing metrics for cognitive radio ad hoc networks: i)
they are often based on heuristics, and thus they have not been proved to be optimal; ii) they …