Performance Analysis of Different Types of Sensor Networks for Cognitive Radios
Joint Authors
Ye, Chunxuan
Lin, Zinan
Demir, Alpaslan
Li, Yan
Source
Journal of Electrical and Computer Engineering
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-10-24
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Engineering Sciences and Information Technology
Information Technology and Computer Science
Abstract EN
We consider the problem of using multiple sensors to detect whether a certain spectrum is occupied or not.
Each sensor sends its spectrum sensing result to a data fusion center, which combines all the results for an overall decision.
With the existence of wireless fading on the channels from sensors to data fusion center, we examine three different mechanisms on the transmissions from sensors to data fusion center: (1) direct transmissions; (2) transmissions with the assistance of relays and (3) transmissions with the assistance of an intermediate fusion helper which fuses the sensing results from the sensors and sends the fused result to the data fusion center.
For each mechanism, we analyze the correct probability of the overall decision made by the data fusion center.
Our evaluation establishes that a sensor network with an intermediate fusion helper performs almost as good as a sensor network with relays, but providing energy and spectral advantages.
Both networks significantly outperform the sensor network without relay or intermediate fusion helper.
Such analysis facilitates the design of sensor networks.
Furthermore, we generalize this evaluation to sensor networks with an arbitrary number of sensors and to sensor networks applying various information combining rules.
Our simulations validate the analytical results.
American Psychological Association (APA)
Ye, Chunxuan& Lin, Zinan& Demir, Alpaslan& Li, Yan. 2012. Performance Analysis of Different Types of Sensor Networks for Cognitive Radios. Journal of Electrical and Computer Engineering،Vol. 2012, no. 2012, pp.1-15.
https://search.emarefa.net/detail/BIM-486783
Modern Language Association (MLA)
Ye, Chunxuan…[et al.]. Performance Analysis of Different Types of Sensor Networks for Cognitive Radios. Journal of Electrical and Computer Engineering No. 2012 (2012), pp.1-15.
https://search.emarefa.net/detail/BIM-486783
American Medical Association (AMA)
Ye, Chunxuan& Lin, Zinan& Demir, Alpaslan& Li, Yan. Performance Analysis of Different Types of Sensor Networks for Cognitive Radios. Journal of Electrical and Computer Engineering. 2012. Vol. 2012, no. 2012, pp.1-15.
https://search.emarefa.net/detail/BIM-486783
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-486783