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Efficient Iterative Massive MIMO Detectors Based on Iterative Matrix Inversion Methods
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Author(s): Mahmoud Albreem (A'Sharqiyah University, Oman)
Copyright: 2021
Pages: 21
Source title:
Design Methodologies and Tools for 5G Network Development and Application
Source Author(s)/Editor(s): P. Suresh (Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, India), G. Vairavel (Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, India)and U. Saravanakumar (Muthayammal Engineering College, India)
DOI: 10.4018/978-1-7998-4610-9.ch009
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Abstract
Massive multiple-input multiple-output (MIMO) is a key technology in fifth generation (5G) communication systems. Although the maximum likelihood (ML) obtains an optimal performance, it is prohibited in realization because of its high computational complexity. Linear detectors are an alternative solution, but they contain a matrix inversion which is not hardware friendly. Several methods have been proposed to approximate or to avoid the computation of exact matrix inversion. This chapter garners those methods and study their applicability in massive MIMO system so that a generalist in communication systems can differentiate between different algorithms from a wide range of solutions. This chapter presents the performance-complexity profile of a detector based on the Neuamnn-series (NS), Newton iteration (NI), successive over relaxation (SOR), Gauss-Seidel (GS), Jacobi (JA), Richardson (RI), optimized coordinate descent (OCD), and conjugate-gradient (CG) methods in 8×64, 16×64, and 32×64 MIMO sizes, and modulation scheme is 64QAM.
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