基于统计网络演算的融合网络网关节点时延性能研究  

Research on the delay properties of the converged network gateway node based on statistical network calculus

作　　者：赵一A 张中荃[1] 

机构地区：[1]西安通信学院,陕西西安710106

出　　处：《微型机与应用》2011年第19期47-50,53,共5页Microcomputer & Its Applications

摘　　要：为分析融合网络网关节点统计时延性能,根据最小加代数理论中的统计网络演算的相关知识,提出了一种基于改进的GPS调度系统模型,然后利用网络演算理论求解出网关节点统计时延上界。数值结果分析表明,改进的调度模型有效地改善了自相似特性对网关延迟上界所造成的影响,与未改进的模型相比,网关统计延迟上界更具有良好的紧致性,为下一步由单节点扩展到端到端节点延迟上界研究提供了参考。In order to analyse the statistical delay performance for gateway node of converged network, according to the knowledge of the statistical network calculus in minimum plus algebra theory, this paper proposes a scheduling system based on improved model of GPS, and then uses the network calculus to solve the upper bound of statistical delay in gateway nodes. Numerical results show that the improved scheduling model improves the impact from self-similar processes on the delay. Compared with the model without improved, it not only has a better compactness on the upper bound of delay, but also provides a reference value for the next extension from a single node to the end-to-end nodes of the upper bound.

关 键 词：融合网络 统计网络演算 GPS调度系统 自相似过程 

分 类 号：TN923[电子电信—通信与信息系统]