Optimizing a matched filter in the presence of ISI and adjacent channel interference

Author

Gowen, Rory ; Daku, Brian ; Dodds, D.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Saskatchewan, Saskatoon, SK, Canada

fYear

2013

fDate

5-8 May 2013

Firstpage

1

Lastpage

4

Abstract

QAM based communications systems suffer performance loss due to the practical implementation of the matched filter in the receiver. The practical matched filter causes two types of interference: Intersymbol Interference and Adjacent Channel Interference. The combined effect of the interference is minimized by applying a tapered window to the matched filter coefficients. It is shown that proper windowing improves the modulation error ratio by 0.5 to 8 dB depending upon the adjacent channel power.

Keywords

adjacent channel interference; error statistics; intersymbol interference; matched filters; optimisation; quadrature amplitude modulation; radio receivers; telecommunication network reliability; ISI; QAM based communications system; adjacent channel interference; adjacent channel power; intersymbol interference; matched filter coefficient; matched filter optimization; modulation error ratio; performance loss; receiver; tapered window; windowing; Equalizers; Interchannel interference; Intersymbol interference; Quadrature amplitude modulation; Receivers; Shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering (CCECE), 2013 26th Annual IEEE Canadian Conference on

Conference_Location

Regina, SK

ISSN

0840-7789

Print_ISBN

978-1-4799-0031-2

Electronic_ISBN

0840-7789

Type

conf

DOI

10.1109/CCECE.2013.6567763

Filename

6567763