Artificial intelligence based cognitive routing for cognitive radio networks

Cooperation-based Routing in Cognitive Radio Networks

Primary user activity is a major bottleneck for existing routing protocols in cognitive radio networks. Typical routing protocols avoid areas that are highly congested with primary users, leaving only a small fragment of available links for secondary route construction. In addition, wireless links are prone to channel impairments such as multipath fading; which renders the quality of the availa...

A Fuzzy-based Routing Strategy for Multihop Cognitive Radio Networks

Cognitive radio networks represent a new class of wireless networks where the channels are not permanently available, depending on the traffic activity of licensed users who have the priority to use these channels. We design a novel routing procedure for multihop cognitive radio networks composed of adequate metrics and a strategy to combine these metrics. The objective is then to increase chan...

Routing Protocols in Cognitive Radio Networks

Routing in Cognitive Radio Ad-Hoc Networks

Cognitive Radio (CR) mitigates the problem of inefficient spectrum usage. Cognitive radio is based on Dynamic Spectrum Access (DSA), through which unlicensed users can use the licensed spectrum band without causing harmful interference to the licensed users. However, this dynamic spectrum access increases designing of communication protocols in different layers. In this paper, I have presented ...

Routing in Cognitive Radio Networks - A Survey

Cognitive Radio Networks (CRNs) have been emerged as a revolutionary solution to migrate the spectrum scarcity problem in wireless networks. Due to increasing demand for additional spectrum resources, CRNs have been receiving significant research to solve issues related with spectrum underutilization. This technology brings efficient spectrum usage and effective interference avoidance, and also...