Title :
MIMO-OFDM channel estimation in the presence of carrier frequency-offset
Author :
Li, Jun ; Liao, Guisheng ; Guo, Qinghua ; Wu, Yuntao
Author_Institution :
Inst. of Electron. Eng., Xidian Univ., Xi´´an, China
fDate :
31 May-2 June 2004
Abstract :
An algorithm for joint channel and carrier frequency-offset (CFO) estimation in MIMO-OFDM using a training sequence is proposed. This algorithm is developed based on a maximum likelihood (ML) criterion, and jointly estimates the CFO and all frequency-selective channel parameters in time domain. To evaluate the performance of the algorithm, the Cramer-Rao bound (CRB) for the problem is calculated computer simulations show that the proposed algorithm can meet the CRB in certain signal-noise ratio (SNR).
Keywords :
MIMO systems; OFDM modulation; channel estimation; frequency estimation; maximum likelihood estimation; radiocommunication; time-domain analysis; Cramer-Rao bound; MIMO-OFDM channel estimation; carrier frequency-offset; frequency-selective channel parameters; maximum likelihood criterion; signal-noise ratio; time domain; training sequence; Channel estimation; Computer simulation; Fading; Frequency estimation; MIMO; Maximum likelihood estimation; OFDM; Receiving antennas; Transmitters; Transmitting antennas;
Conference_Titel :
Emerging Technologies: Frontiers of Mobile and Wireless Communication, 2004. Proceedings of the IEEE 6th Circuits and Systems Symposium on
Print_ISBN :
0-7803-7938-1
DOI :
10.1109/CASSET.2004.1321980
