JOURNAL ARTICLE
Design of WIMAX LDPC codec based on FPGA(基于FPGA的WIMAX LDPC码编译码器的设计)
WANGXiu-min(王秀敏)SHENJian-ming(沈建明)ZHANGYang(张洋)FUJuan(付娟)
Year: 2012 Journal: DOAJ (DOAJ: Directory of Open Access Journals)
Abstract
提出了一种适合于WIMAX标准的所有码长和码率LDPC码的编码器结构，充分利用了校验矩阵的特点降低硬件实现复杂度.设计了一种基于TDMP-NMS算法的码长码率均可配置的支持连续译码的LDPC码译码器，支持该标准中所有码长和码率LDPC码的译码，通过仿真得出了在保证译码器误码率性能前提下的最优量化比特位宽和各码率的最优归一化因子.采用一种新的适合于TDMP算法的动态迭代停止准则，结果表明，所采用的方案有效降低了译码器的资源消耗，提高了吞吐率.
Keywords:
Codec WiMAX Encoding (memory) Key (lock) Transmission (telecommunications) Decoding methods
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Topics
Error Correcting Code Techniques
Physical Sciences → Computer Science → Computer Networks and Communications
Wireless Signal Modulation Classification
Physical Sciences → Computer Science → Artificial Intelligence
Telecommunications and Broadcasting Technologies
Physical Sciences → Engineering → Media Technology