Title :
A New OFDM Channel Estimation Method Based on Pilot and MWLS-SVR
Author :
Dingxue, Wu ; Wenping, Fan
Author_Institution :
Comput. Dept., Huanggang Normal Univ., Huanggang, China
Abstract :
In order to increase the transmission efficiency of OFDM system, this paper present a local adaptive multi-scale wavelet least squares support vector regression (MWLS-SVR) formulation specifically adapted to a pilots-based OFDM signal, and proposes a new method for channel estimation with pilot assisted symbol modulation expectation. The simulation result shows that the new method can reduce the complexity, and it has also still lower BER compared to traditional method.
Keywords :
OFDM modulation; channel estimation; error statistics; least squares approximations; regression analysis; BER; MWLS-SVR; OFDM channel estimation; OFDM signal; multiscale wavelet least squares; pilot assisted symbol modulation expectation; support vector regression; Bit error rate; Channel estimation; Chirp modulation; Cities and towns; Demodulation; Digital modulation; Fading; Frequency domain analysis; Least squares approximation; OFDM modulation; MWLS-SVR; OFDM system; channel estimation; pilot;
Conference_Titel :
Natural Computation, 2009. ICNC '09. Fifth International Conference on
Conference_Location :
Tianjin
Print_ISBN :
978-0-7695-3736-8
DOI :
10.1109/ICNC.2009.236
