大气相干光通信中的LDPC低密度奇偶校验码的应用实现
n application of LDPC code for wireless coherent-light commutation in atmospheric channel
LDPC低密度奇偶校验码在高速数据通信系统中越来越受到重视。本文根据IEEE802.16e规范下的LDPC低密度奇偶校验码的编码和解码算法实现了基于Virtex-5 FPGA上的硬件LDPC码的编码器和解码器。并且在大气相干光通信信道中做了相应的传输实验，对传输系统的离线数据进行了相应的数据处理和分析。主要分析和比较LDPC编码器在不同码长下对编码性能的影响以及LDPC解码器不同迭代次数对解码的误码率（BER）性能的影响。
Low Density Parity Check code is more and more taken seriously in high-speed transmission. In this article we represent a LDPC coder and decoder which based on IEEE802.16e and realize the coder and decoder with Virtex-5 FPGA. By using Matlab to make an off-line system simulation, we analyzed and compared the LDPC performance under the different length of code for LDPC coder then analyzed the influence of different iteration to the LDPC BER performance of decoder.
郝宁、张阳安
通信无线通信电子技术应用
信道编码LDPC码IEEE802.16e规范比特翻转算法（BF）奇偶校验矩阵
hannel codingLow Density Parity Check code(LDPC)IEEE802.16eBit-Flipping algorithm (BF)parity check matrix
郝宁,张阳安.大气相干光通信中的LDPC低密度奇偶校验码的应用实现[EB/OL].(2012-12-27)[2025-08-16].http://www.paper.edu.cn/releasepaper/content/201212-1029.点此复制
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