As cognitive radio networks are being used as a method which helps in determining the
spectrum vacancy and utilize the spectrum efficiently, spectrum sensing is one of the key …

Cognitive radio is a modern wireless communication methodology that deals with the issue
of spectrum untapped. Cognitive users can continually perceive the licensed spectrum to …

针对现有频谱感知算法检测概率较低导致的感知性能较差的问题, 提出了协方差矩阵机会协作(
covariance matrix opportunity cooperation, CMOC) 频谱感知算法. 该算法在传统协方差矩阵 …

An essential element and one of the challenging tasks in cognitive radio is spectrum
sensing. In this paper, a new method to enhance the sensing is presented and implemented …

Due to the lack of spectrum resources required for information transmission, Spectrum
perception is one of the key technologies in cognitive radio that can solve this problem. The …

Cognitive radio is a new technology that aims to make the most of the limited spectrum
available. The main component of cognitive radio is spectrum sensing. The Two Thresholds …

A new technique called cognitive radio seeks to utilize the available spectrum.. Spectrum
sensing is the fundamental cognitive radio component. There are many types of sensing …

A new wireless communication technique called cognitive radio deals with the issue of the
unutilized spectrum. Cognitive users can continuously scan the permitted spectrum to look …

The problem of the spectrum is scarcity, and to solve it, cognitive radio was used. The main
component of cognitive radio is the sensing of the spectrum. There are several ways to know …

This paper presents the design, implementation, and results from a dynamic wireless
spectrum access system built using GNU Radio and software‐defined radios (SDRs) as part …