三种UEP喷泉码的比较分析  

A Comparative Analysis on Three Types of UEP Fountain Codes

作　　者：赵海军[1] 陈国泰[1] 潘美莺[1] 

机构地区：[1]福建师范大学福清分校电子与信息工程学院,福建福州350300

出　　处：《洛阳师范学院学报》2015年第8期30-34,共5页Journal of Luoyang Normal University

基　　金：福建省教育厅A类项目(JA12350)

摘　　要：UEP喷泉码不仅可以有效减少网络通信中的ACK包,而且适用于不同重要等级的数据.由于结构的差异、度分布的参数不同,这三种结构UEP喷泉码的性能很难在度均值一致的情况下进行性能对比以判定三种结构在性能上的优劣.本文对三种不同结构的UEP喷泉码进行分析和比较,理论分析和仿真结果表明,扩展窗-UEP喷泉码更适合用于对多级重要等级的数据进行喷泉编码.UEP fountain can be used to encode the data with different importance as well as reduce the number of ACK packets in network communication. Due to the differences in structure and various distributions of the parameters,these three types of UEP fountain codes are hardly to be compared to show their advantages and disadvantages in functions based on the same level of samples＇ average value. By theoretical analysis and results from the simulation experiment,three UEP fountain codes with different structure are analyzed and compared in this paper,which shows that expanding window UEP fountain code is a better choice to encode the data with the number of importance rate greater than the other two ones.

关 键 词：无码率码 喷泉码 不平等保护技术 

分 类 号：TN911.2[电子电信—通信与信息系统]