Physical Layer Security Performance Analysis of IRS-Aided Cognitive Radio Networks

The Security of Physical Layer in Cognitive Radio Networks

—Cognitive Radio (CR) is a novel technology that promises to solve the lack of spectrum by allowing secondary users to use licensed band, so that they can coexist with primary users without causing interference to their communications. With the development of CR, extending to the level of network, cognitive radio networks (CRNs) emerge as the times require. Nowadays the operational aspects of ...

On Physical Layer Security for Cognitive Radio Networks

Security in Cognitive Radio Networks Security in Cognitive Radio Networks

While bringing the potential for solving the spectrum underutilization problem using methods such as dynamic and opportunistic spectrum access, Cognitive Radios (CRs) also bring a set of security issues and potential breaches that have to be addressed. These issues come out mainly from the two important capabilities implemented within CRs: their cognition ability and reconfigurability. This cha...

An intelligent physical layer for cognitive radio networks

In this paper, we present an intelligent physical layer for cognitive mesh networks. It is well recognized that wireless mesh networks suffer from the inherent property of per hop delay attributed to store and forward routing and channel contention. We show that an intelligent physical layer coupled with efficient traffic engineering and channel allocation mechanism will reduce latency. In this...

Countermeasure Against Physical Layer Attack in Cognitive Radio Networks

A “Cognitive radio” is a latest technology aiming to solve the spectrum scarcity problem by allocating the spectrum to secondary users. It aims to improve the utilization of the radio spectrum by reducing the spectrum holes. The existing systems that have been proposed so far provided the solution for some attacks in the Physical layer of Cognitive radio with a limited number of nodes, evaluate...