High parallel variation banyan network based permutation network for reconfigurable LDPC decoder

Xiao Peng, Zhixiang Chen, Xiongxin Zhao, Fumiaki Maehara, Satoshi Goto

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

6 Citations (Scopus)

Abstract

Permutation network plays an important role in the reconfigurable QC-LDPC decoder for most modern wireless communication systems with multiple code rates and various code lengths. In this paper, we propose the variation Banyan network (VBN) based permutation network architecture for the reconfigurable QC-LDPC decoders and give the control signal generating algorithm for cyclic shift. Through introducing the bypass network, we put forward the nonblocking scheme for any input number and shift number. In addition, the optimized VBN is proposed for WiMAX and WiFi standard, which can shift at most 4 groups of input data, and greatly reduce the hardware complexity. The synthesis results using the 90nm technology demonstrate that the proposed permutation network can be implemented with the gate count of 18.3k and the frequency of 600 MHz.

Original languageEnglish
Title of host publicationASAP 10 - 21st IEEE International Conference on Application-Specific Systems, Architectures and Processors, Conference Proceedings
Pages233-238
Number of pages6
DOIs
Publication statusPublished - 2010 Aug 27
Event21st IEEE International Conference on Application-specific Systems, Architectures and Processors, ASAP 2010 - Rennes, France
Duration: 2010 Jul 72010 Jul 9

Publication series

NameProceedings of the International Conference on Application-Specific Systems, Architectures and Processors
ISSN (Print)1063-6862

Conference

Conference21st IEEE International Conference on Application-specific Systems, Architectures and Processors, ASAP 2010
CountryFrance
CityRennes
Period10/7/710/7/9

Keywords

  • Banyan network
  • LDPC decoder
  • Permutation
  • Reconfigurable

ASJC Scopus subject areas

  • Hardware and Architecture
  • Computer Networks and Communications

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  • Cite this

    Peng, X., Chen, Z., Zhao, X., Maehara, F., & Goto, S. (2010). High parallel variation banyan network based permutation network for reconfigurable LDPC decoder. In ASAP 10 - 21st IEEE International Conference on Application-Specific Systems, Architectures and Processors, Conference Proceedings (pp. 233-238). [5540964] (Proceedings of the International Conference on Application-Specific Systems, Architectures and Processors). https://doi.org/10.1109/ASAP.2010.5540964