Memory efficient LDPC code design for high throughput software defined radio (SDR) systems

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

1 Scopus citations

Abstract

Low-Density Parity-Check (LDPC) codes have been adopted in the physical layer protocol of many communication systems because of their superior performance. A direct implementation of the LDPC decoder on an existing platform, such as a software defined radio (SDR), is likely to be inefficient. Our approach is to design the LDPC code in a way that takes into account the constraints imposed by the existing architecture, without compromising the communication performance. In this paper, a procedure for architecture-aware LDPC code design which minimize the number of global memory accesses in a memory constrained system is derived. The procedure is built on top of existing super-code based LDPC code design. The proposed code construction procedure also results in reduction in the number of iterations and thereby increases the throughput significantly.

Original languageEnglish (US)
Title of host publication2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07
PagesII9-II12
DOIs
StatePublished - Aug 6 2007
Event2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07 - Honolulu, HI, United States
Duration: Apr 15 2007Apr 20 2007

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume2
ISSN (Print)1520-6149

Other

Other2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07
CountryUnited States
CityHonolulu, HI
Period4/15/074/20/07

Keywords

  • Channel coding
  • Computer architecture
  • Memory access
  • Throughput (communication systems)

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Electrical and Electronic Engineering

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    Zhu, Y., & Chakrabarti, C. (2007). Memory efficient LDPC code design for high throughput software defined radio (SDR) systems. In 2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07 (pp. II9-II12). [4217332] (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings; Vol. 2). https://doi.org/10.1109/ICASSP.2007.366159