Generic permutation network for QC-LDPC decoder

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

*この研究の対応する著者

研究成果: Article査読

1 被引用数 (Scopus)

抄録

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. This paper presents the generic permutation network (GPN) for the reconfigurable QC-LDPC decoder. Compared with conventional permutation networks, this proposal could break through the input number restriction, such as power of 2 and other limited number, and optimize the network for any application in demand. Moreover, the proposed scheme could greatly reduce the latency because of less stages and efficient control signal generating algorithm. In addition, the proposed network processes the nature of high parallelism which could enable several groups of data to be cyclically shifted simultaneously. The synthesis results using the 90 nm technology demonstrate that this architecture can be implemented with the gate count of 18.3k for WiMAX standard at the frequency of 600 MHz and 10.9k for WiFi standard at the frequency of 800 MHz.

本文言語English
ページ(範囲)2551-2559
ページ数9
ジャーナルIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
E93-A
12
DOI
出版ステータスPublished - 2010 12

ASJC Scopus subject areas

  • 信号処理
  • コンピュータ グラフィックスおよびコンピュータ支援設計
  • 電子工学および電気工学
  • 応用数学

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