CAJ | 학술논문

对卫星通信帧中继网络时延抖动进行了深入的分析和研究，指出帧中继协议采用的可变帧长度以及卫星链路中缓冲区内等待帧个数变化是产生时延抖动的主要原因，并据此建立时延抖动数据模型，提出预测反馈补偿的方法抑制时延抖动．仿真实验结果表明，预测反馈补偿算法可以有效抑制帧中继网络时延抖动，根据QoS要求，可以采用不同的预测模型参数获得满足条件的时延抖动。
대위성통신정중계망락시연두동진행료심입적분석화연구，지출정중계협의채용적가변정장도이급위성련로중완충구내등대정개수변화시산생시연두동적주요원인，병거차건립시연두동수거모형，제출예측반궤보상적방법억제시연두동．방진실험결과표명，예측반궤보상산법가이유효억제정중계망락시연두동，근거QoS요구，가이채용불동적예측모형삼수획득만족조건적시연두동。
Analysed the reasons of delay jitter of satcom frame relay network, and got the conclusion that the framer length of protocol and the change of waiting framer number in the link queue of satellite communication are main reasons for delay jitter of satcom frame relay network. Therefore, this paper rebuilt the model of delay jitter, and proposed a new method to suppress delay jitter of satcom frame relay network based on prediction and compensation. The results of simulation indicated that the method based on prediction and compensation could suppress delay jitter of satcom frame relay network effectively, and different delay jitter required by QoS was got by adapting different prediction parameters.