NDLI: Low-complexity signal detection for large-scale MIMO systems with second-order Richardson method

Content Provider	IET Digital Library
Author	Khoso, Imran A. Zhang, Xiaofei Shaikh, Abdul Hayee
Abstract	Linear minimum mean-square error (MMSE) detection achieves near-optimal performance in large-scale multiple-input multiple-output (LS-MIMO) systems but entails high computational complexity due to large matrix inversion operations. In this Letter, a novel computationally efficient algorithm based on second-order Richardson method is proposed to solve the LS-MIMO detection problem. While no a priori information for the first iteration of the second-order Richardson method is available, the conjugate gradient scheme is exploited that greatly reduces the number of iterations to achieve the desired performance. Moreover, the eigenvalue-based acceleration parameters are proposed to further accelerate the convergence rate. Numerical results demonstrate that the proposed detector outperforms the existing methods and approaches the performance of MMSE with a small number of iterations.
Starting Page	467
Ending Page	469
Page Count	3
ISSN	00135194
Volume Number	56
e-ISSN	1350911X
Issue Number	Issue 9, Apr (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/56/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2020.0208
Journal	Electronics Letters
Publisher Date	2020-02-24
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Computational Complexity Computationally Efficient Algorithm Eigen Values And Eigen Function Eigenvalue-based Acceleration Parameter High Computational Complexity Interpolation And Function Approximation Iterative Method Large-scale MIMO System Least Mean Squares Method Linear Minimum Mean-square Error Detection Achieves Near-optimal Performance Low-complexity Signal Detection LS-MIMO Detection Problem Matrix Inversion Matrix Inversion Operation Mean Square Error Method MIMO Communication Multiple-input Multiple-output System Numerical Analysis Radio Link And Equipment Second-order Richardson Method Signal Detection Statistics
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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