作者
Vicente Osa, Carlos Herranz, Jose F Monserrat, Xavier Gelabert
发表日期
2012/12
期刊
EURASIP Journal on Wireless Communications and Networking
卷号
2012
页码范围
1-17
出版商
Springer International Publishing
简介
Long term evolution advanced (LTE-A) has emerged as a promising mobile broadband access technology aiming to cope with the increasing traffic demand in wireless networks. However, the enhanced spectral efficiency offered by LTE-A may become futile without a better management of scarce and overcrowded electromagnetic spectrum. In this sense, cognitive radio (CR) has been proposed as a potential solution to the problem of spectrum scarcity. Among all the mechanisms provided by CR, opportunistic spectrum access (OSA) aims at a dynamic and seamless use of certain licensed bands provided the licensee is not harmfully affected. This operation requires spectral awareness in order to avoid interferences with licensed systems. In spite of implementing some spectrum sensing mechanisms, LTE-A technology lacks other tools that are needed in order to improve the knowledge of the radio …
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V Osa, C Herranz, JF Monserrat, X Gelabert - EURASIP Journal on Wireless Communications and …, 2012