CAJ | 학술논문

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。
UEP분천마불부가이유효감소망락통신중적ACK포，이차괄용우불동중요등급적수거。유우결구적차이、도분포적삼수불동，저삼충결구UEP분천마적성능흔난재도균치일치적정황하진행성능대비이판정삼충결구재성능상적우렬。본문대삼충불동결구적UEP분천마진행분석화비교，이론분석화방진결과표명，확전창－UEP분천마경괄합용우대다급중요등급적수거진행분천편마。
UEP fountain can be used to encode the data with different importance as well as reduce the num -ber 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 disad -vantages 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 pa-per, 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 .