Paper Info
Title
Downsampling Techniques Using Notch Filter for Interference Cancellation in Narrowband Wireless Systems.
Abstract
This paper presents novel downsampling techniques using multiple second-order FIR notch filters for interference cancellation in the frequency division multiplexing (FDM) narrowband wireless systems. The purpose of the presented technique is to reduce the computational complexity of signal prosessor in a low-IF receiver. The presented downsampling technique employs some downsamplers and second-order FIR notch filters where its center notch frequency equals to the half of the sampling frequency. Since its filter are composed of a few adder and register instead of ones of a low pass filter (LPF) with the steep characteristic, the reduction of the computational complexity can be expected. In the presented technique, signal components to be overlapped to desired signal when downsampling is carried out are eliminated by the second-order FIR-NF. The presented technique concentrates in-band channel interferences into a narrow frequency range, and these interferences are cancelled by a harf band filter. Numerical example are shown to valid the effectiveness the presented technique.
Year
DOI
Venue
2011
10.1109/VETECF.2011.6093281
VTC Fall
Keywords
Field
DocType
FIR filters,communication complexity,frequency division multiplexing,interference suppression,low-pass filters,notch filters,radio receivers,signal sampling,computational complexity,frequency division multiplexing,half band filter,in-band channel interference,interference cancellation,low IF receiver,low pass filter,multiple second order FIR notch filter,narrowband wireless system,notch frequency,sampling frequency,second order FIR-NF,signal downsampling technique,signal prosessor
Band-stop filter,Baseband,Narrowband,Half-band filter,Computer science,Single antenna interference cancellation,Frequency-division multiplexing,Electronic engineering,Low-pass filter,Finite impulse response
Conference
ISSN
Citations 
PageRank 
1550-2252
1
0.36
References 
Authors
4
1
Name
Order
Citations
PageRank
Shusuke Narieda1199.15