摘要
根据分组话音业务的特点 ,结合分组话音复接器主要性能指标的要求 ,研究无比特丢弃的AAL2分组话音复接器的数学模型 .得出结论 ,对于无比特丢弃的AAL2分组话音复接器 ,可用UAS模型准确研究其分组丢弃概率 ;而平均分组排队时延可用M/D/1/K模型来近似描述 ,但存在一定的误差 .
This paper investigates the model for the analysis of the AAL2 packet voice multiplexer without bit dropping which takes into consideration the features of packet voice calls and the packet voice multiplexer. A conclusion is drawn that for the AAL2 packet voice multiplexer without bit dropping, the UAS model can be used to analyze the probability of packet loss due to buffer overflow with great accuracy. But the mean packet queuing delay can just be approximated by the M/D/1/K model. Computer simulation results obtained are in good agreement with the conclusion.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2002年第4期499-503,共5页
Journal of Xidian University
基金
国家部委预研基金资助项目 (DJ4 2 2 3 )
