DocumentCode
1537800
Title
Towards a bandwidth efficient cognitive positioning system
Author
Thomas, Robin ; Maharaj, B.T.
Author_Institution
Dept. of Electr., Electron. & Comput. Eng., Univ. of Pretoria, Pretoria, South Africa
Volume
48
Issue
12
fYear
2012
Firstpage
736
Lastpage
737
Abstract
Presented is an efficient bandwidth determination model for the cognitive positioning system by utilising multiple receive antennas. The performance evaluations of the proposed multiple receive antenna positioning system were carried out using the linear least squares and maximum-likelihood location estimation techniques. Simulated results reveal that in a rural scenario, the 1×2 and 1×3 single-input-multiple-output (SIMO) cases display an average bandwidth efficiency with respect to positional accuracy, of 49 and 58×, respectively, over the single-input-single-output (SISO) case. For an urban scenario, the 1×2 and 1×3 SIMO cases display a higher average bandwidth efficiency of 53 and 62×, respectively, over the SISO case.
Keywords
antenna arrays; cognitive radio; least squares approximations; maximum likelihood estimation; receiving antennas; bandwidth determination model; bandwidth efficiency; cognitive positioning system; linear least squares; maximum likelihood location estimation techniques; multiple receive antennas; single-input-multiple-output case;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2011.3820
Filename
6215332
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