Title :
Channel estimation for OFDM system with two training symbols aided and polynomial fitting
Author :
Lee, Huang Chang ; Chen, Chao-Wei ; Wei, Shyue-Win
Author_Institution :
Grad. Inst. of Commun. Eng., Nat. Chi Nan Univ., Nantou, Taiwan
fDate :
3/1/2010 12:00:00 AM
Abstract :
A time-varying channel estimation method for orthogonal frequency division multiplexing (OFDM) systems is presented. The presented channel estimation method employs two training symbols in combination with polynomial fitting, thus obtaining accurate estimation results under a large normalized Doppler frequency.
Keywords :
OFDM modulation; channel estimation; polynomials; OFDM system; channel estimation; large normalized Doppler frequency; orthogonal frequency division multiplexing; polynomial fitting; time-varying channel estimation method; training symbols; Channel estimation; Chaotic communication; Delay; Fading; Frequency division multiplexing; Frequency estimation; Matrix converters; OFDM; Polynomials; Time-varying channels; OFDM, channel estimation, time-varying channel, large normalized Doppler frequency, two training symbols;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2010.03.080053
