摘要
阐述了HFC网络中3种QoS业务调度方式的优劣,并对基于业务类调度方式的语音业务和数据业务性能模型的平均时延和吞吐量进行了计算和仿真,最终得出此调度方式是以牺牲数据业务性能为代价来保证实时业务实时性的结论。
The advantages and disadvantages of three QoS service dispatching methods in hybrid fiber and coaxial （HFC） network are expatiated. Then, the average time delay and the throughput of voice services and data services performance model that is based on the classified service dispatching method are calculated and simulated. Finally, the paper comes to a conclusion that this method insures the real-time services against delay at the cost of the data services performances.
出处
《重庆邮电大学学报（自然科学版）》
2007年第4期495-498,共4页
Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)
基金
重庆市光纤通信技术重点实验室资助基金(24038)
关键词
HFC
QOS
调度方式
MAP
时延估计
吞吐量
hybrid fiber and coaxial （HFC）
quality of service （QoS）
dispatching me thod
maximum posterior probability （MAP）
delay estimation
throughput
