Title :
Channel identification in MIMO-OFDM systems
Author :
Bai, Wei ; Bu, Zhiyong
Author_Institution :
Shangai Res. Center for Wireless Commun., China
fDate :
31 May-2 June 2004
Abstract :
A blind channel identification problem based on exploiting the virtual carrier is investigated for MIMO-OFDM systems. Sufficient identifiability conditions are established for MIMO-OFDM channel to be identifiable up to a unitary matrix. And the subspace blind channel identification method is proposed. The method is attractive for its potential to increase the system´s channel utilization due to no restriction on length of the cyclic prefix. Computer simulation results are finally provided to illustrate the effectiveness of the proposed blind channel identification method.
Keywords :
MIMO systems; OFDM modulation; blind equalisers; mobile radio; radio links; telecommunication channels; MIMO-OFDM system; channel utilization; cyclic prefix length; subspace blind channel identification method; unitary matrix; AWGN; Computational modeling; Computer simulation; MIMO; Multimedia systems; OFDM; Receiving antennas; Virtual colonoscopy; Web and internet services; Wireless communication;
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.2004.1321962
