TITLE

Study on Energy Detection-based Cooperative Sensing in Cognitive Radio Networks

AUTHOR(S)
Mokhtar, Rania; Saeed, Rashid; Alsaqour, Raed; Abdallah, Yahia
PUB. DATE
June 2013
SOURCE
Journal of Networks;Jun2013, Vol. 8 Issue 6, p1255
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Cognitive radio (CR) technology aims to achieve efficient radio spectrum utilization based on overlay spectrum sharing. Therefore, one of the main requirements of CR systems is the capability to detect and sense the presence of primary transmissions. However, sensing is affected by the behavior of the wireless channel, i.e., hidden node, interference, shadowing, and fading, which may result in wrong detection decisions. Consequently, CRs may introduce harmful interference to primary radios. Cooperative spectrum sensing can improve detection decisions by obtaining sensing information from different sources, which has been recently proposed to overcome this problem. This paper reviews cooperative sensing aspects, approaches, architecture, as well as problematic aspect and drawbacks of the control channel and associated fusion methods.
ACCESSION #
88421271

 

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