Design and implementation of turbo decoders for software defined radio

Yuan Lin, Scott Mahlke, Trevor Mudge, Chaitali Chakrabarti, Alastair Reid, Krisztián Flautner

Research output: Chapter in Book/Report/Conference proceedingConference contribution

26 Scopus citations

Abstract

Software Defined Radio(SDR) is an emerging paradigm for wireless terminals, in which the physical layer of communication protocols is implemented in software rather than by ASICs. Many of the current and next generation wireless protocols include Turbo coding because of its superior performance. However, Turbo decoding is computationally intensive, and its low power implementations have typically been in ASICs. This paper presents a case study of algorithm-architecture co-design of Turbo decoder for SDR. We present a programmable DSP architecture for SDR that includes a set of architectural features to accelerate Turbo decoder computations. We then present a parallel window scheduling for MAX-Log-MAP component decoder that matches well with the DSP architecture. Finally, we present a software implementation of Turbo decoder for W-CDMA on the DSP architecture and show that it achieves 2Mbps decoding throughput.

Original languageEnglish (US)
Title of host publication2006 IEEE Workshop on Signal Processing Systems Design and Implementation, SIPS
PublisherIEEE Computer Society
Pages22-27
Number of pages6
ISBN (Print)1424403820, 9781424403820
DOIs
StatePublished - 2006
EventIEEE Workshop on Signal Processing Systems, SIPS 2006 - Banff, AB, Canada
Duration: Oct 2 2006Oct 4 2006

Publication series

Name2006 IEEE Workshop on Signal Processing Systems Design and Implementation, SIPS

Other

OtherIEEE Workshop on Signal Processing Systems, SIPS 2006
CountryCanada
CityBanff, AB
Period10/2/0610/4/06

ASJC Scopus subject areas

  • Signal Processing
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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