Generic Permutation Network for QC-LDPC Decoder

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概要

• 論文の詳細を見る

• 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 90nm technology demonstrate that this architecture can be implemented with the gate count of 18.3k for WiMAX standard at the frequency of 600MHz and 10.9k for WiFi standard at the frequency of 800MHz.

• 2010-12-01

著者

• CHEN Zhixiang

  Graduate School of Information, Production and Systems, Waseda University

• MAEHARA Fumiaki

  Department of Science and Engineering, Waseda University

• GOTO Satoshi

  Graduate School of Information, Production and Systems, Waseda University

• GOTO Satoshi

  Waseda University

• Goto Satoshi

  Waseda Univ. Jpn

• Peng Xiao

  Waseda Univ. Kitakyushu‐shi Jpn

• Zhao Xiongxin

  Waseda Univ. Kitakyushu‐shi Jpn

• Chen Zhixiang

  Waseda Univ. Kitakyushu‐shi Jpn

• Zhao Xiongxin

  Graduate School Of Information Production And Systems Waseda University

• Chen Zhixiang

  Graduate School Of Information Production And Systems Waseda University

• Peng Xiao

  Graduate School Of Information Production And Systems Waseda University

• Maehara Fumiaki

  Waseda Univ. Tokyo Jpn

• Maehara Fumiaki

  Department Of Radiology School Of Medicine Fukuoka University

• Maehara Fumiaki

  Department Of Science And Engineering Waseda University

• Goto Satoshi

  Graduate School Of Information Production And System Waseda University

• Xiongxin Zhao

  School of Information, Production and Systems, Waseda University

• Goto Satoshi

  Graduate School of Infomlation Production and Systems Waseda University

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