La Radio Cognitiva y su Impacto en el Uso Eficiente del Espectro de Radio

Ingeniería Electrónica, Automática y Comunicaciones

López, Raikel Bordón¹  Montejo Sánchez, Samuel¹ 

关键词: dynamic spectrum access;    spectrum sensing;    cognitive radio.;   

DOI  :  

来源: Instituto Superior Politecnico "Jose Antonio Echeverria"

【 摘 要 】

Cognitive radio emerges as a new technology for wireless communication with the potential to solve the actual spectrum scarcity issue resulting from the inefficiency in the spectrum usage. Dynamic spectrum access techniques are a key element in the implementation of cognitive radio technology. In this paper we analyze the four main features that are part of the cognitive cycle to ensure dynamic spectrum access: (1) identification of opportunities for spectrum access, (2) selection of frequency bands for transmission; (3) coordination between users to access the spectrum, (4) spectral mobility. In addition, we provide a summary of the most popular testbed used in cognitive radio research and discuss the recent efforts made by various institutions in order to establish regulations for opportunistic spectrum usage.

【 授权许可】

Unknown