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p ro j e ct 1 3

5 3

as spectrum holes, while protecting the primary

users’ communication. Cognitive radionetworks

have cognitive and reconfigurable properties

and the capability to detect unoccupied

spectrum holes and change frequency for

end-to-end communication. This project is

aiming to design a communication framework

that allows secondary users to communicate

using the licensed spectrum, without

disturbing the primary users’ communication.

To accomplish this, a learning-based network

management approach will be investigated for

network resource management. The proposed

framework will improve spectrum utilization

and prevent against intentional jamming.

The radio spectrum is a finite resource, which is

now in great demand with the proliferation of

new applications and services such as cellular

phones, radio and television broadcast,

Wi-Fi, sensor networks, broadband wireless

Internet access, and so on. Large portions of

the U.S. licensed spectrum are underutilized.

To address the issue of spectrum scarcity,

new communication paradigms have been


Cognitive radio has emerged as a promising

technology to improve the overall spectrum

usage by opportunistically allowing secondary

users toutilizeunused licensedbands, referred to

Communication Framework in

cognitive radio networks

Mihaela Cardei, PI



interested in

this project:

Tecore Networks