Received signal interpolation for context discovery in Cognitive Radio

Author

Bolea, Liliana ; Pérez-Romero, Jordi ; Agustí, Ramon

Author_Institution

Dept. of Signal Theor. & Commun. (TSC), Univ. Politec. de Catalunya (UPC), Barcelona, Spain

fYear

2011

fDate

3-7 Oct. 2011

Firstpage

1

Lastpage

5

Abstract

This paper addresses the context acquisition to characterize different features of a primary network based on the power measurements obtained by a sensor network. In particular, it presents a comparative study of the impact of natural neighbor, linear, and nearest neighbor interpolation techniques carried out over the measurements at different geographical positions. Extracted features include transmitter position, antenna pattern or propagation model. An evaluation is carried out in scenarios including the effect of both correlated and non-correlated shadowing.

Keywords

antenna radiation patterns; cognitive radio; feature extraction; power measurement; radio transmitters; wireless sensor networks; antenna pattern; cognitive radio; context acquisition; context discovery; correlated shadowing; feature extraction; linear interpolation; natural neighbor; nearest neighbor interpolation; noncorrelated shadowing; power measurement; primary network; propagation model; received signal interpolation; sensor network; transmitter position; Antenna radiation patterns; Context; Estimation; Feature extraction; Interpolation; Shadow mapping; dynamic spectrum access; interpolation; natural neighbor; nearest neighbor; radio environment map;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Personal Multimedia Communications (WPMC), 2011 14th International Symposium on

Conference_Location

Brest

ISSN

1347-6890

Print_ISBN

978-1-4577-1786-4

Electronic_ISBN

1347-6890

Type

conf

Filename

6081519