Effect of Spread Spectrum Pilot on an SVD Based Adaptive Duplexer

Author

Williamson, Matthew ; Faulkner, Michael

Author_Institution

Centre for Telecommun. & Micro-Electron., Victoria Univ., Melbourne, Vic.

Volume

6

fYear

2006

fDate

7-10 May 2006

Firstpage

2762

Lastpage

2766

Abstract

The accurate detection of leakage signals is of vital importance for their cancellation in an adaptive duplexer. This paper presents a solution for detecting and correcting the leakage in the receive band from a local transmitter. It is shown that this method has minimal effect on the desired received signal while providing an accurate error measure for the correction technique. A one dimension search algorithm eliminates the error in 250 iterations, while a more complex singular value decomposition (SVD) method requires only 10 iterations. The disadvantage of the SVD is the need for secondary adjustment loops. The (W)CDMA simulation model uses a spread spectrum pilot

Keywords

code division multiple access; interference suppression; search problems; signal detection; singular value decomposition; spread spectrum communication; SVD based adaptive duplexer; WCDMA simulation model; accurate error measure; correction technique; leakage signal detection; one dimension search algorithm; receive band; secondary adjustment loops; singular value decomposition method; spread spectrum pilot; Adaptive signal detection; Band pass filters; Integrated circuit noise; Leak detection; Noise cancellation; Noise measurement; Radio frequency; Radio transmitters; Spread spectrum communication; Transceivers; Adaptive Duplexer; Duplexer; SVD Control; Spread Spectrum; component;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2006. VTC 2006-Spring. IEEE 63rd

Conference_Location

Melbourne, Vic.

ISSN

1550-2252

Print_ISBN

0-7803-9391-0

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2006.1683371

Filename

1683371