一种适用于嵌入式平台的Raptor码算法  

A Raptor Code Algorithm for Embedded Platform

作　　者：梁斌[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电工程》2015年第10期77-80,共4页Radio Engineering

摘　　要：针对Raptor编/译码器在卫星通信工程应用中运算量过大的不足,提出一种新的稀疏矩阵方程求解算法。采用该算法求解Raptor编/译码方程,可简化求解步骤。与3GPP描述的Raptor码求解算法相比,该算法可有效降低基于嵌入式平台的Raptor编/译码器的运算时间,满足了实际工程中对时延限制和设备小型化的需求。To solve the problem that the calculations of Raptor encoder/decoder is too complex to apply in satellite communication project,a novel sparse matrix rank reduction method is proposed.The method used to solve Raptor encoding/decoding equation can simplify the process of solution.Compared with the algorithm recommended by 3GPP,the method can effectively reduce the running time of Raptor encoder/decoder based on embedded platform, and can meet the requirements of time delay and equipment miniaturization in practical engineering.

关 键 词：喷泉码 RAPTOR码 前向纠错 嵌入式 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]