Title :
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
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;
Conference_Titel :
Electrical and Computer Engineering (CCECE), 2013 26th Annual IEEE Canadian Conference on
Conference_Location :
Regina, SK
Print_ISBN :
978-1-4799-0031-2
Electronic_ISBN :
0840-7789
DOI :
10.1109/CCECE.2013.6567763
