Title :
Subspace-MMSE blind channel estimation for multiuser OFDM with receiver diversity
Author :
Cheng, Yu-Yi ; Lee, Yumin ; Li, Hsueh-Jyh
Author_Institution :
Graduate Inst. of Commun. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
A receiver algorithm for OFDM with receiver diversity is proposed. The proposed receiver uses a new two-step blind channel estimation algorithm referred to as the subspace-MMSE channel estimator. Minimum mean square error linear diversity combining is then performed based on the estimated channel. Simulation results show that performance gain of 1-3 dB is achievable by the proposed approach.
Keywords :
OFDM modulation; channel estimation; data communication; diversity reception; least mean squares methods; multiuser channels; radio receivers; signal processing; MMSE channel estimation; channel estimation; linear diversity combining; minimum mean square error; multiuser OFDM; receiver diversity; signal processing; subspace channel estimation; subspace-MMSE blind channel estimation; wireless data communication; Blind equalizers; Channel estimation; Delay effects; Diversity reception; Fading; Frequency estimation; Interference; OFDM; Performance gain; Receiving antennas;
Conference_Titel :
Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE
Print_ISBN :
0-7803-7974-8
DOI :
10.1109/GLOCOM.2003.1258644
