Title :
An OFDM channel estimation based on a simultaneous use of liner interpolation and feedback channel estimation
Author :
Iwamatsu, Takanori ; Kobayashi, Takaharu ; Wakasugi, Koichiro
Author_Institution :
Platform Technol. Labs., Fujitsu Labs. Ltd., Kawasaki, Japan
Abstract :
In Orthogonal Frequency Division Multiplexing (OFDM), multiple pilot subcarriers are dispersed for propagation channel estimation. Our study suggests a method to reduce the number of pilot subcarriers to 1/15 while maintaining fading tolerance. This can be realized by estimating the propagation channel parameters with combined implementation of sequential feedback estimation for the time direction and linear interpolation for the frequency direction.
Keywords :
OFDM modulation; channel estimation; fading channels; feedback; interpolation; OFDM channel estimation; feedback channel estimation; frequency direction; linear interpolation; liner interpolation; maintaining fading tolerance; multiple pilot subcarriers; orthogonal frequency division multiplexing; propagation channel estimation; propagation channel parameters; sequential feedback estimation; OFDM; component; decision feedback; delay profile; linear interpolation; propagation channel estimation;
Conference_Titel :
Communications and Electronics (ICCE), 2010 Third International Conference on
Conference_Location :
Nha Trang
Print_ISBN :
978-1-4244-7055-6
DOI :
10.1109/ICCE.2010.5670792
