Title :
Optimally combining decision-directed and pilot-symbol-aided channel estimators
Author_Institution :
Dept. of Inf. & Commun. Eng., Dongguk Univ., Seoul, South Korea
fDate :
3/20/2003 12:00:00 AM
Abstract :
There are two different types of channel estimation methods: decision-directed channel estimation (DDCE) and pilot-symbol-aided channel estimation (PSACE). A new type of channel estimation method is proposed in which DDCE and PSACE are optimally combined based on estimated symbol error rate and signal-to-noise ratio.
Keywords :
AWGN; OFDM modulation; channel estimation; code division multiple access; error statistics; fading channels; multipath channels; CDMA systems; DDCE; OFDM systems; PSACE; SNR estimation; code division multiple access; combined channel estimation method; decision directed channel estimation; multipath fading channels; optimally combined methods; orthogonal frequency division multiplexing; pilot-symbol-aided channel estimation; signal-to-noise ratio estimation; symbol error rate estimation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030363
