摘要
分析了ATM网络中恒定比特率(CBR)业务的排队性能,根据CBR业务源周期发送信元的特点,采用无限容量缓冲区排队系统和有限容量缓冲区排队系统的离散时间排队模型,利用有限容量缓冲区排队系统信元丢失率和无限容量缓冲区排队系统信元逗留时间之间的关系,给出了一种简单的计算有限容量缓冲区排队系统 CBR 业务信元丢失率上界和信元平均时延的解析表达式.并对仿真结果进行了分析.
The order performance of CBR service in ATM network is analysed.Based on the period working speciality of CBR service source,the discrete time model for infinite and finite butter order system is used.According to the relationship of cell lost rate for finite butter order system and the delay time for infinite butter order system,a simple function of computing the lost factor and the time delay of the system is presented.The simulation result is also analysed.
出处
《兰州交通大学学报》
CAS
2005年第1期1-4,共4页
Journal of Lanzhou Jiaotong University
基金
甘肃省自然科学基金资助项目(ZS011 A25 023 G)
关键词
ATM网络
CBR业务
排队性能
信元丢失率
ATM network
constant bit rate service
order performance
cell lost rate
