摘要
LT码是一种实用的喷泉码编码方式,影响其性能的一个重要因素是译码算法.通过分析已有LT码的MP译码算法和GE译码算法的性能.提出了MPGE联合译码算法,通过对小规模数据传输和大规模数据传输进行仿真分析可知,新的译码算法结合了MP算法译码运算量少和GE算法误码率低的优点,提高了译码效率.
LT code is a kind of practical fountain code encoding, and the decoding algorithm is an important factor affecting the performance. By analyzing the performance of existing MP decoding algorithm of LT codes and GE decoding algorithm, MPGE joint decoding algorithm is proposed. Based on the simulation analysis on small-scale and large-scale data transmission, new decoding algorithm combines with the advantages of less computational amount of MP decoding algorithm and low bit error rate of GE decoding algorithm, so that the coding efficiency is improved.
出处
《河南科学》
2013年第10期1643-1646,共4页
Henan Science
