Title :
Subspace based blind channel estimation for space time block coded OFDM system
Author :
Xu, Daofeng ; Yang, Luxi ; He, Zhenya
Author_Institution :
Dept. of Radio, Southeast Univ., Nanjing
Abstract :
We propose a subspace-based blind channel estimation method for space-time coded OFDM system. Using only the redundancy induced by OFDM modulation and space-time block coding (STBC), channel state information (CSI) can be blindly estimated up to two scalar ambiguities, even with single receiving antenna. Compared with other blind channel estimation method for space time OFDM systems, this method needs neither pre-coding nor over-sampling, and thus has higher system data rate and lower complexity
Keywords :
OFDM modulation; block codes; channel coding; channel estimation; space-time codes; CSI; OFDM modulation; OFDM system; STBC; channel state information; receiving antenna; space time block coding; subspace based blind channel estimation; Algorithm design and analysis; Blind equalizers; Block codes; Channel estimation; Equations; Filter bank; MIMO; OFDM modulation; Receiving antennas; Transmitting antennas; OFDM; blind estimation; space-time coding; subspace;
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1693496
