Title :
On Improved DCT Based Channel Estimation with Very Low Complexity for MIMO-OFDM Systems
Author :
Diallo, Moussa ; Rabineau, Rodrigue ; Cariou, Laurent ; Hélard, Maryline
Author_Institution :
France Telecom R&D Div., 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. After the description of the conventional DCT based method, a channel estimation scheme improved in terms of both performance and complexity using small DCT blocks is proposed. Finally the efficiency of this estimator is evaluated within IEEE802.11n and 3GPP/LTE system contexts.
Keywords :
MIMO communication; OFDM modulation; channel estimation; discrete cosine transforms; DCT; MIMO-OFDM system; discrete cosine transform; multiple input multiple output system; orthogonal frequency division multiplexing; transform domain channel estimation; Channel estimation; Delay; Discrete cosine transforms; Frequency estimation; Intersymbol interference; MIMO; Noise reduction; OFDM modulation; Receiving antennas; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference, 2009. VTC Spring 2009. IEEE 69th
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-2517-4
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2009.5073721
