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Multi-mode message passing switch networks applied for QC-LDPC decoder

8 years 9 months ago
Multi-mode message passing switch networks applied for QC-LDPC decoder
—The multi-mode message passing switch networks for multi-standard QC-LDPC decoder are presented. An enhanced self-routing switch network with only one barrel shifter permutation structure and a shifter-based two-way duplicated switch network are proposed to support 19 and 3 different submatrices defined in IEEE 802.16e and IEEE 802.11n. These proposed switch networks can route the decoding message in parallel by different sizes without signal congestion. The enhanced self-routing switch network can switch the messages at different expansion factors with the lowest hardware complexity. Under the condition of a smaller expansion factor, the decoder throughput can be enhanced from the two-way duplicated switch network by increasing the parallelism. In the 130nm CMOS synthesis result, the proposed enhanced self-routing and
Chih-Hao Liu, Chien-Ching Lin, Hsie-Chia Chang, Ch
Added 31 May 2010
Updated 31 May 2010
Type Conference
Year 2008
Where ISCAS
Authors Chih-Hao Liu, Chien-Ching Lin, Hsie-Chia Chang, Chen-Yi Lee, Yarsun Hsua
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