-种改进的Reed-Muller码软判决大数逻辑译码算法

Modified Soft-decision Majority-logic Decoding of Reed-Muller Codes

研究了Reed-Muller码的大数逻辑译码算法,针对RM码大数逻辑译码算法对最高阶信息比特的糾错性能不足的缺点,提出了一种改进的软判决大数逻辑译码算法。对最高阶信息比特使用和积算法,对其它低阶信息比特使用软判决大数逻辑译码算法。仿真结果表明,提出的算法有效提高了RM码的糾错能力。

This paper analyzed the majority-logic decoding of Reed-Muller codes and proposed a modified soft—decision majority—logic decoding of Reed-Muller codes to overcome the errors on the highest—order information bits when using the majority—logic decoding of Reed—Muller codes.A sum—product algorithm is used to decoding the highest—order information bits,Numerical results show that the modified soft—decision majority—logic decoding method proposed in this study can improve the error correction ability of Reed-Muller Codes.