Title :
Hopping pilots for estimation of frequency-offset and multiantenna channels in MIMO OFDM
Author :
Oh, Mi-Kyung ; Ma, Xiaoli ; Giannakis, Georgios B. ; Park, Dong-Jo
Author_Institution :
Dept. of EECS, Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
Abstract :
We design pilot symbol assisted modulation for carrier frequency offset (CFO) and channel estimation in orthogonal frequency division multiplexing (OFDM) transmissions over multiinput multioutput (MIMO) frequency-selective fading channels. By separating CFO and channel estimation from symbol detection, the novel training patterns lead to low-complexity CFO and channel estimators. The performance of our algorithms is investigated analytically, and then compared with an existing approach by simulations.
Keywords :
MIMO systems; OFDM modulation; antenna arrays; channel estimation; frequency estimation; CFO; MIMO; OFDM; carrier frequency offset; channel estimation; frequency-offset estimation; hopping pilot; multiantenna channel; multiinput multioutput; orthogonal frequency division multiplexing; Channel estimation; Decoding; Frequency estimation; Frequency modulation; Frequency-selective fading channels; MIMO; OFDM modulation; Performance analysis; Transmitters; Transmitting antennas;
Conference_Titel :
Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE
Print_ISBN :
0-7803-7974-8
DOI :
10.1109/GLOCOM.2003.1258405
