Title :
Improvement technique of channel estimation in OFDM-MIMO systems
Author :
Mlayeh, Y. ; Rouissi, F. ; Tlili, F. ; Ghazel, A.
Author_Institution :
CIRTACOM Lab., Ecole Super. des Commun. de Tunis (SUP´´COM), Tunis, Tunisia
Abstract :
This paper presents an extra processing added to conventional LS estimation to improve its performances in OFDM-MIMO systems. The new technique is based on the knowledge of the power delay profile. The application of the improved estimator is useful when employing advanced MIMO adaptation techniques such switching algorithms and leads to significant improvement in decision criterion precision and consequently in terms of BER.
Keywords :
MIMO communication; OFDM modulation; channel estimation; error statistics; LS estimation; OFDM-MIMO systems; advanced MIMO adaptation; channel estimation; decision criterion precision; power delay profile; switching algorithms; AWGN; Additive white noise; Bit error rate; Channel estimation; Diversity reception; MIMO; OFDM; Receiving antennas; Transmitters; WiMAX; LS Channel estimation; OFDM; Switching algorithm; power delay profile;
Conference_Titel :
Electronics, Circuits, and Systems, 2009. ICECS 2009. 16th IEEE International Conference on
Conference_Location :
Yasmine Hammamet
Print_ISBN :
978-1-4244-5090-9
Electronic_ISBN :
978-1-4244-5091-6
DOI :
10.1109/ICECS.2009.5410891
