Cognitive radio (CR) is a rising technology that unlocks the doors for radio spectrum scarcity
problem, which is of great concern nowadays among the researchers at various levels. CR …

The inherent scarcity of frequency spectrum, along with the fixed spectrum allocation
adopted policy, has led to a dire shortage of this indispensable resource. Furthermore, with …

Traditional cognitive radio (CR) spectrum access techniques have been primitive and
inefficient due to being blind to the occupancy conditions of the spectrum bands to be …

The rising number and capacity requirements of wireless systems bring increasing demand
for RF spectrum. Cognitive radio (CR) system is an emerging concept to increase the …

The massively increasing number of wireless communication devices has led to
considerable growths in radio traffic density, resulting in a predictable shortage of the …

In order for the unlicensed or secondary users to use the licensed spectrum cognitive radio
has been proposed. The licensed frequencies can be made use of by unlicensed users …

Cognitive radio being a key factor to fulfill demand of high data transmission and has
improved the utilization of available frequency spectrum for next generation technology. For …

Recently, cognitive radio technology has gained worldwide attention due to its potential to
overcome spectrum scarcity. The technology allows unlicensed users to use licensed …

Cognitive radio (CR) technology is a potential solution to the spectrum scarcity problem. In
CR systems, the availability of the licensed spectrum portion is monitored by the spectrum …

Cognitive radio (CR) provides a better way for utilization of spectrum resource by introducing
an opportunistic usage of the frequency bands that are not heavily occupied by a licensed …