A Review of routing protocols for mobile cognitive radio ad hoc networks

TL;DR

This paper surveys various routing protocols designed for mobile cognitive radio ad hoc networks, highlighting their features and challenges in dynamic, spectrum-aware environments.

Contribution

It provides a comprehensive review of existing routing protocols specific to mobile cognitive radio ad hoc networks, emphasizing their design considerations and performance issues.

Findings

Identifies key challenges in routing for MCRAHNs

Classifies existing routing protocols based on their approaches

Highlights gaps and future research directions

Abstract

Ad hoc network is a collection of wireless mobile nodes that dynamically form a temporary network without the use of any existing network infrastructure or centralized administration. A cognitive radio is a radio that can change its transmitter parameters based on interaction with the environment in which it operates. The basic idea of cognitive radio networks is that the unlicensed devices (cognitive radio users or secondary users) need to vacate the spectrum band once the licensed device (primary user) is detected. Cognitive capability and reconfigurability are the key characteristics of cognitive radio. Routing is an important issue in Mobile Cognitive Radio Ad Hoc Networks (MCRAHNs). In this paper, a survey of routing protocols for mobile cognitive radio ad networks is discussed.