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Blind channel estimator for MIMO-OFDM systems based on linear non-redundant precoding

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4 Author(s)
Jianxin Guo ; Inst. of Telecommun. Eng., Air Force Eng. Univ., Xi''an, China ; Lei Jiang ; Yanxin Gou ; Xiangru Meng

In this paper, a blind channel estimator, which is based on linear non-redundant precoding and second-order statistics, is proposed for space time block (STBC) coded MIMO-OFDM systems. According to the complex orthogonal properties of the STBCs, the channel estimate with a scalar ambiguity can be obtained through a series of simple linear transformation. Simulation results show that the proposed scheme can track the time-varying channel state well and thus improve the system performance when the number of the statistical data is properly chosen.

Published in:

Wireless Communications, Networking and Mobile Computing, 2005. Proceedings. 2005 International Conference on  (Volume:1 )

Date of Conference:

23-26 Sept. 2005