Multi-User Spectrum Sensing based on Multitaper Method for Cognitive Environments

This paper gives a brief but comprehensive review of the Multitaper spectrum estimation method that uses the data tapers or windows in digital signal processing. Instead of using a single kind of window functions, here a cluster of window functions are mentioned, which is known as Slepian tapers. Th...

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Bibliographic Details
Published in:International journal of computer applications 2011-01, Vol.22 (9)
Main Authors: Prasad, Silpa S, Gandhiraj, R, Soman, K P
Format: Article
Language:English
Subjects:
Algorithms
Blocking
Eigenvalues
Radio
Software radio
Time series
Window functions
Wireless communication
Online Access:Get full text
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Summary:This paper gives a brief but comprehensive review of the Multitaper spectrum estimation method that uses the data tapers or windows in digital signal processing. Instead of using a single kind of window functions, here a cluster of window functions are mentioned, which is known as Slepian tapers. This taper family minimize leakage also, and computing them requires solving eigenvalue problems that are large for long time series. However, the eigenvalue problems have a special structure that makes a fast algorithm possible.Secondly, the enabling of the algorithmic method with Cognitive Radio (CR) Technology, which is an advanced version of Software Defined Radio (SDR) Technology is discussed. SDR Technology is supposed to become a prevailing technology in the field of wireless communication. The Software Radio is an interesting area, in which the GNU Radio explores and then the Universal Software Radio Peripheral (USRP) formulates it. Here the paper also proposes the idea of constructing a block in GNU Radio Companion using the same algorithmic method in GNU Radio.
ISSN:0975-8887
0975-8887
DOI:10.5120/2613-1093