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Linear Precoding Scheme Design for MIMO Two-Way Relay Systems with Imperfect Channel State Information
Joint Authors
Su, Jun-xu
Hu, Xu-jun
Fang, Zhu
Chen, Xiaomin
Zhu, Qiu-Ming
Source
Mathematical Problems in Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-04-12
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
The aim of this paper is to investigate a linear precoding scheme design for a multiple-input multiple-output two-way relay system with imperfect channel state information.
The scheme design is simplified as an optimal problem with precoding matrix variables, which is deduced with the maximum power constraint at the relay station based on the minimum mean square error criterion.
With channel feedback delay at both ends of the channel and the channel estimation errors being taken into account, we propose a matrix decomposition scheme and a joint iterative scheme to minimize the average sum mean square error.
The matrix decomposition method is used to derive the closed form of the relay matrix, and the joint iterative algorithm is used to optimize the precoding matrix and the processing matrix.
According to numerical simulation results, the matrix decomposition scheme reduces the system bit error rate (BER) effectively and the joint iterative scheme achieves the best performance of BER against existing methods.
American Psychological Association (APA)
Chen, Xiaomin& Su, Jun-xu& Zhu, Qiu-Ming& Hu, Xu-jun& Fang, Zhu. 2017. Linear Precoding Scheme Design for MIMO Two-Way Relay Systems with Imperfect Channel State Information. Mathematical Problems in Engineering،Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1190639
Modern Language Association (MLA)
Chen, Xiaomin…[et al.]. Linear Precoding Scheme Design for MIMO Two-Way Relay Systems with Imperfect Channel State Information. Mathematical Problems in Engineering No. 2017 (2017), pp.1-8.
https://search.emarefa.net/detail/BIM-1190639
American Medical Association (AMA)
Chen, Xiaomin& Su, Jun-xu& Zhu, Qiu-Ming& Hu, Xu-jun& Fang, Zhu. Linear Precoding Scheme Design for MIMO Two-Way Relay Systems with Imperfect Channel State Information. Mathematical Problems in Engineering. 2017. Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1190639
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1190639