[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.6109/jicce.2019.17.1.1

Low-Complexity Block Diagonalization Precoder Hardware Implementation for MU-MIMO 4×4

Khai, Lam Duc (Department of Computer Engineering, University of Information Technology, VNU-HCM)

Publication Information

Journal of information and communication convergence engineering / v.17, no.1, 2019 , pp. 1-7 More about this Journal

Abstract

In this paper, we present the block diagonalization (BD) algorithm for the multiple-user multiple input multiple output (MU-MIMO) $4{\times}4$ system using specific purpose processor (SPP) hardware. Our objective is to improve the single-user MIMO (SU-MIMO) system using the MU-MIMO technology, which is remarkably fast and allows more users to connect simultaneously. To that end, our MU-MIMO precoder uses the BD algorithm to ensure signal integrity when connecting multiple users; but remains accurate and stable. However, a precoder that uses the BD algorithm is computationally complex; therefore, we use an SPP with special functions designed to compute the BD algorithm. The implementation test results show that our SPP computes the BD algorithm faster than the software solution.

Keywords

MU-MIMO; Block Diagonalization; Hardware; Specific Purpose Processor;

Citations & Related Records

Reference

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