Joint Adaptive Blind Channel Estimation and Data Detection for MIMO-OFDM Systems
Joint Authors
Yang, Ruo-Nan
Zhang, Wei-Tao
Lou, Shun-Tian
Source
Wireless Communications and Mobile Computing
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-07-02
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Information Technology and Computer Science
Abstract EN
In order to track a changing channel in multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) systems, it is a priority to estimate channel impulse response adaptively.
In this paper, we propose an adaptive blind channel estimation method based on parallel factor analysis (PARAFAC).
We used an exponential window to weigh 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 a third-order tensor, which consists of the weighted OFDM data symbols.
By preserving the Khatri-Rao product, we used a recursive least squares solution to update the estimated subspace at each time instant, then the channel parameters can be estimated adaptively, and the algorithm achieves superior convergence performance.
Simulation results validate the effectiveness of the proposed algorithm.
American Psychological Association (APA)
Yang, Ruo-Nan& Zhang, Wei-Tao& Lou, Shun-Tian. 2020. Joint Adaptive Blind Channel Estimation and Data Detection for MIMO-OFDM Systems. Wireless Communications and Mobile Computing،Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1214344
Modern Language Association (MLA)
Yang, Ruo-Nan…[et al.]. Joint Adaptive Blind Channel Estimation and Data Detection for MIMO-OFDM Systems. Wireless Communications and Mobile Computing No. 2020 (2020), pp.1-9.
https://search.emarefa.net/detail/BIM-1214344
American Medical Association (AMA)
Yang, Ruo-Nan& Zhang, Wei-Tao& Lou, Shun-Tian. Joint Adaptive Blind Channel Estimation and Data Detection for MIMO-OFDM Systems. Wireless Communications and Mobile Computing. 2020. Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1214344
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1214344