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LordCore: Energy-Efficient OpenCL-Programmable Software-Defined Radio Coprocessor

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Details

Original languageEnglish
Pages (from-to)1029-1042
JournalIEEE Transactions on Very Large Scale Integration (VLSI) Systems
Volume27
Issue number5
DOIs
Publication statusPublished - 26 Feb 2019
Publication typeA1 Journal article-refereed

Abstract

This paper proposes a single instruction multiple data (SIMD) processor, which is programmed with high-level OpenCL language. The low-power processor is customized for executing multiple-input-multiple-output (MIMO) detection algorithms at a high performance while consuming very little power making it suitable for software-defined radio (SDR) applications. The novel combination of SIMD operations on a transport programmed multicore datapath allows saving power on both the execution front end and the back end, leading to very good energy efficiency with a compiler programmable design. We demonstrate the feasibility of the architecture with the layered orthogonal lattice detector and minimum mean-square-error MIMO algorithms, which can be used as a software-defined radio implementation of the 3GPP local thermal equilibrium r11 standard. Compared to other state-of-the-art SDR architectures, the proposed design adds features that improve programmer productivity with an insignificant power and area impact

ASJC Scopus subject areas

Keywords

  • SIMD, OpenCL, MIMO, processor

Publication forum classification

Field of science, Statistics Finland