A cognitive radio wireless sensor network is one of the candidate areas where cognitive
techniques can be used for opportunistic spectrum access. Research in this area is still in its …

The massive growth in mobile users and wireless technologies has resulted in increased
data traffic and created demand for additional radio spectrum. This growing demand for …

方便地从互联网获取信息和服务, 移动互联网应运而生并迅猛发展. 然而,
移动互联网在移动终端, 接入网络, 应用服务, 安全与隐私保护等方面还面临着一系列的挑战 …

Energy detection constitutes a preferred approach for spectrum sensing in cognitive radio
owing to its simplicity and applicability (it works irrespective of the signal format to be …

The growing demand of wireless applications has put a lot of constraints on the usage of
available radio spectrum which is limited and precious resource. However, a fixed spectrum …

In this paper, we consider the problem of locating multiple active spectrum subbands in a
wide range of frequency bands. A major challenge associated with such wideband spectrum …

In this article, we present a mixed analog-digital spectrum sensing method that is especially
suited to the typical wideband setting of CRs. The next section briefly summarizes existing …

Spectrum sensing is a key aspect of Cognitive Radio (CR). The main requirement in CR
systems is the ability to sense the primary signal accurately and rapidly. In this paper, a …

With the rapid expansion of wireless technologies, monitoring and regulating the Radio
Frequency (RF) spectrum usage becomes more important than ever. In this paper, we …

Cognitive radio has recently emerged as a promising solution to conciliate the existing
conflicts between spectrum demand growth and spectrum underutilisation. The basic …