Arquitecturas de radio cognitiva: una revisión actual

Abstract

In recent years in telecommunications technology has evolved allowing offering more services to users, such as mobile telephony. However due to the increase of these services, the telecommunications sector has been faced with a growing problem that must be addressed concerning the saturation of the spectrum. Cognitive radio has presented like the best way to solve this problem, focusing their efforts on making more efficient use of the available spectrum. This paper presents then a description of the state of the art on Cognitive radio architectures, the proposed solutions and spectral dimensions where Cognitive Radio can find opportunities for transmission.

Keywords

• network architecture
• cognitive radio
• wireless network
• telecommunicatios