Title :
Robust DCT Based Channel Estimation for MIMO-OFDM System
Author :
Diallo, Moussa ; Rabineau, Rodrigue ; Cariou, Laurent
Author_Institution :
R&D Div., France Telecom, Cesson-Sevigne
Abstract :
This paper deals with a novel transform domain channel estimation (TD-CE) based on discrete cosine transform (DCT) for the MIMO-OFDM system when null carriers are placed at the edges of the spectrum. After the description of the conventional DCT based method, an improved channel estimation scheme using truncated singular value decomposition is proposed. Finally the efficiency of this estimator is evaluated within 3GPP/LTE system context.
Keywords :
MIMO communication; OFDM modulation; channel estimation; discrete cosine transforms; singular value decomposition; MIMO-OFDM system; null carriers; orthogonal frequency division multiplexing; robust discrete cosine transform; transform domain channel estimation; truncated singular value decomposition; Channel estimation; Discrete Fourier transforms; Discrete cosine transforms; Frequency estimation; MIMO; OFDM modulation; Receiving antennas; Robustness; Singular value decomposition; Transmitting antennas;
Conference_Titel :
Wireless Communications and Networking Conference, 2009. WCNC 2009. IEEE
Conference_Location :
Budapest
Print_ISBN :
978-1-4244-2947-9
Electronic_ISBN :
1525-3511
DOI :
10.1109/WCNC.2009.4917953
