BibTeX
@MISC{_usingc-to-hardware,
author = {},
title = {USING C-TO-HARDWARE ACCELERATION IN FPGAS FOR WAVEFORM BASEBAND PROCESSING},
year = {}
}
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Abstract
Software-defined radio (SDR) architectures typically include general-purpose CPUs (GPPs), digital signal processing (DSP) ASSPs and FPGAs that process different waveforms, functions, and algorithms. GPPs typically handle network protocol processing and management functions. Historically, DSPs handled transceiver baseband processing and encoding, while FPGAs provided highperformance IF up/down conversion and preconditioning functions. Now FPGAs, when used with embedded softcore processors, have absorbed the DSP baseband processing and some GPP functionality as well, providing a smaller, lower power solution. However, meeting the baseband performance requirements requires aggressive use of hardware acceleration. In this paper, we discuss an efficient methodology for hardware acceleration of SDR waveforms, the creation and use of hardware acceleration units, and a tool that automates the flow. The Altera ® Nios ® II C-to-Hardware (C2H) Acceleration Compiler is a coprocessor generation tool that converts performancecritical ANSI C functions into hardware accelerator modules with direct memory access. Results are presented showing performance gains of 13–73X over software only, offering a promising solution for rapid development of high-performance SDR systems. 1.
Keyphrases
hardware acceleration network protocol processing hardware accelerator module acceleration compiler dsp baseband processing efficient methodology process different waveform digital signal processing aggressive use power solution management function high-performance sdr system altera nios ii c-to-hardware direct memory access baseband processing sdr waveform rapid development promising solution gpp functionality include general-purpose cpu performance gain embedded softcore processor hardware acceleration unit preconditioning function performancecritical ansi function coprocessor generation tool software-defined radio baseband performance requirement
