%0 Journal Article %1 ghoshcognitive %A Ghosh, Goutam %A Das, Prasun %A Chatterjee, Subhajit %D 2014 %J International Journal of Next-Generation Networks (IJNGN) %K (CR) (DSA) Wireless access and chain cognitive communication dynamic fuzzy logic management. markovian policies radio sharing spectrum system threshold %N 1 %P 43 - 60 %T Cognitive Radio And Dynamic Spectrum Access – A Study %U http://airccse.org/journal/ijngn/papers/6114ijngn04.pdf %V 6 %X A basic problem facing the future in wireless systems is where to find suitable spectrum bands to fulfill the demand of future services. While all of the radio spectrum is allocated to different services, applications and users, observation show that usage of the spectrum is actually quite low. To overcome this problem and improve the spectrum utilization, cognitive radio concept has been evolved. Wireless communication, in which a transmitter and receiver can detect intelligently communication channels that are in use and those which are not in use are known as Cognitive Radio, and it can move to unused channels. This makes possible the use of available radio frequency spectrum while minimizing interference with other users. CRs must have the capability to learn and adapt their wireless transmission according to the surrounding radio environment. The application of Artificial Intelligence approaches in the Cognitive Radio is very promising since they have a great importance for the implementation of Cognitive Radio networks architecture. Dynamic spectrum access is a promising approach to make less severe the spectrum scarcity that wireless communications face now. It aims at reusing sparsely occupied frequency bands and does not interfere to the actual licensees. This paper is a review and comparison of different DSA models and methods.

@article{ghoshcognitive, abstract = {A basic problem facing the future in wireless systems is where to find suitable spectrum bands to fulfill the demand of future services. While all of the radio spectrum is allocated to different services, applications and users, observation show that usage of the spectrum is actually quite low. To overcome this problem and improve the spectrum utilization, cognitive radio concept has been evolved. Wireless communication, in which a transmitter and receiver can detect intelligently communication channels that are in use and those which are not in use are known as Cognitive Radio, and it can move to unused channels. This makes possible the use of available radio frequency spectrum while minimizing interference with other users. CRs must have the capability to learn and adapt their wireless transmission according to the surrounding radio environment. The application of Artificial Intelligence approaches in the Cognitive Radio is very promising since they have a great importance for the implementation of Cognitive Radio networks architecture. Dynamic spectrum access is a promising approach to make less severe the spectrum scarcity that wireless communications face now. It aims at reusing sparsely occupied frequency bands and does not interfere to the actual licensees. This paper is a review and comparison of different DSA models and methods. }, added-at = {2018-03-17T08:06:46.000+0100}, author = {Ghosh, Goutam and Das, Prasun and Chatterjee, Subhajit}, biburl = {https://www.bibsonomy.org/bibtex/217acb6f900b3f08c930900db71ca8bc3/ijfls}, interhash = {728982a8494671f9e60c5edd958b6ac6}, intrahash = {17acb6f900b3f08c930900db71ca8bc3}, journal = {International Journal of Next-Generation Networks (IJNGN) }, keywords = {(CR) (DSA) Wireless access and chain cognitive communication dynamic fuzzy logic management. markovian policies radio sharing spectrum system threshold}, month = {March}, number = 1, pages = {43 - 60}, timestamp = {2018-03-17T08:06:46.000+0100}, title = {Cognitive Radio And Dynamic Spectrum Access – A Study}, url = {http://airccse.org/journal/ijngn/papers/6114ijngn04.pdf}, volume = 6, year = 2014 }