Blind MIMO channel estimation with an upper bound for channel orders

Many known second-order statistics based blind algorithms for MIMO channel estimation are sensitive to channel order overestimations. To overcome this problem, an algorithm is proposed in Gazzah, H et al. (2002) for SIMO system only, and then a simple generalization of it to MIMO system is presented...

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Bibliographic Details
Published inIEEE International Conference on Communications, 2005. ICC 2005. 2005 Vol. 3; pp. 1996 - 2000 Vol. 3
Main Authors Yonghong Zeng, Tung Sang Ng, Shaodan Ma
Format Conference Proceeding
LanguageEnglish
Published IEEE 2005
Subjects
Channel estimation
Councils
Estimation error
Matrix decomposition
MIMO
Noise robustness
Polynomials
Roundoff errors
Statistics
Upper bound
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ISBN0780389387
9780780389380
ISSN1550-3607
DOI10.1109/ICC.2005.1494688

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Summary:Many known second-order statistics based blind algorithms for MIMO channel estimation are sensitive to channel order overestimations. To overcome this problem, an algorithm is proposed in Gazzah, H et al. (2002) for SIMO system only, and then a simple generalization of it to MIMO system is presented. In this paper, improvements and refinements on the algorithm are given, which makes the method robust to noise and round-off error. The method can give estimations of all channel impulse responses subject to a scalar matrix ambiguity when only an upper bound for all MIMO channel orders is known.
ISBN:0780389387
9780780389380
ISSN:1550-3607
DOI:10.1109/ICC.2005.1494688