Node Addition Method of Removing Rings for Fountain Code

被引：0

作者：

Lv, Xiafu ^{[1
]}

Zheng, Yanpeng ^{[1
]}

机构：

[1] Sch Chongqing Univ Posts & Telecommun, Chongqing 400065, Peoples R China

来源：

MATERIALS SCIENCE, ENERGY TECHNOLOGY, AND POWER ENGINEERING I | 2017年 / 1839卷

关键词：

space communication; fountain code; short ring; node;

D O I：

10.1063/1.4982569

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Traditional communication coding method is difficult to solve the deep space communication exists in the distance, time delay and asymmetry of up-link and down-link and other issues, so choose the fountain code as a deep space communication system channel coding. The paper analyzes the generation principle of LT codes and the factors that affect the performance of LT codes, in which the small loops in the generated matrix are the main factors. A method of adding nodes in Tanner graphs is proposed to remove small loops. The simulation results show that the performance of the LT code is improved and the system reliability is improved.

引用

页数：6

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