收稿日期: 2010-07-15
修回日期: 2010-10-09
网络出版日期: 2010-11-25
基金资助
国家自然科学基金(No.60972053)资助
Decoder with Low Resource Overhead for Multi-edge Type LDPC Codes Based on Cache
Received date: 2010-07-15
Revised date: 2010-10-09
Online published: 2010-11-25
谢东福1, 王琳2, 陈平平1 . 低资源消耗多边类型LDPC码译码器的FPGA实现[J]. 应用科学学报, 2010 , 28(6) : 633 -638 . DOI: 10.3969/j.issn.0255-8297.2010.06.013
To study low cost and low power applications, we propose a decoding architecture with low resource overhead for multi-edge-type low density parity check (LDPC) codes. The architecture links the check node computed unit and variable node computed unit by cache. The analysis and experiments show that, compared with the traditional partial parallel decoding architecture, the decoding architecture described in this paper cuts about 50% RAM for storing iterative information when the check matrix is random, about 90% MUX for transmitting iterative information, and about 80% variable node computation unit for generating iterative information transmitted form variable nodes to check nodes.
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