Adaptive Blind Channel Estimation for MIMO-OFDM Systems Based on PARAFAC
Joint Authors
Zhang, Wei-Tao
Lou, Shun-Tian
Yang, Ruo-Nan
Source
Wireless Communications and Mobile Computing
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-17, 17 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-10-24
Country of Publication
Egypt
No. of Pages
17
Main Subjects
Information Technology and Computer Science
Abstract EN
In order to track the changing channel in multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) systems, it is prior to estimate channel impulse response adaptively.
In this paper, we proposed an adaptive blind channel estimation method based on parallel factor analysis (PARAFAC).
We used an exponential window to weight the past observations; thus, the cost function can be constructed via a weighted least squares criterion.
The minimization of the cost function is equivalent to the decomposition of third-order tensor which consists of the weighted OFDM data symbols.
To reduce the computational load, we adopt a recursive singular value decomposition method for tensor decomposition; then, the channel parameters can be estimated adaptively.
Simulation results validate the effectiveness of the proposed algorithm under diverse signalling conditions.
American Psychological Association (APA)
Yang, Ruo-Nan& Zhang, Wei-Tao& Lou, Shun-Tian. 2020. Adaptive Blind Channel Estimation for MIMO-OFDM Systems Based on PARAFAC. Wireless Communications and Mobile Computing،Vol. 2020, no. 2020, pp.1-17.
https://search.emarefa.net/detail/BIM-1214528
Modern Language Association (MLA)
Yang, Ruo-Nan…[et al.]. Adaptive Blind Channel Estimation for MIMO-OFDM Systems Based on PARAFAC. Wireless Communications and Mobile Computing No. 2020 (2020), pp.1-17.
https://search.emarefa.net/detail/BIM-1214528
American Medical Association (AMA)
Yang, Ruo-Nan& Zhang, Wei-Tao& Lou, Shun-Tian. Adaptive Blind Channel Estimation for MIMO-OFDM Systems Based on PARAFAC. Wireless Communications and Mobile Computing. 2020. Vol. 2020, no. 2020, pp.1-17.
https://search.emarefa.net/detail/BIM-1214528
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1214528