SciELO - Scientific Electronic Library Online

vol.15 número1Estimation Uncertainties in the Optical Signal-to-Noise Ratio Network OptimizationReliable Energy-Efficient Multilayer Mechanism with Realistic Battery Model and QoE Support in Wireless MANETs índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados




Links relacionados


Journal of Microwaves, Optoelectronics and Electromagnetic Applications

versão On-line ISSN 2179-1074


CANAVITSAS, A.; SILVA MELLO, L. da  e  GRIVET, M.. Spectral Vacancies Prediction Method for Cognitive Radio Applications. J. Microw. Optoelectron. Electromagn. Appl. [online]. 2016, vol.15, n.1, pp.18-29. ISSN 2179-1074.

Cognitive radio technology is in fast development and is considered a possible solution to improve the efficiency of radio spectrum use . Many studies have been recently carried out in order to improve spectrum-sharing techniques between primary and secondary users. This paper investigates one of the basic decision problems faced by a cognitive radio: given a time window of a specific size, a secondary user (SU) should decide if it will use it or not, minimizing the chances of collision with a primary user (PU). For this purpose, an algorithm is proposed that does not require previous information about PU occupancy behavior. The proposed algorithm shows very good performance when compared to three other methods recently proposed to tackle with this problem.

Palavras-chave : Spectral vacancies; spectrum sharing; cognitive radio.

        · texto em Inglês     · Inglês ( pdf )