Analyzing the weights and its variation of the three delays in EPA network

Three delay factors of EPA micro segment:queuing delay,node information processing delay and transmission and propagation delay was analied,and the weight influence of the three major factors of delay on the real-time performance was discussed,through the analysis of the number of nodes in the N and...

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Bibliographic Details
Main Authors: Xiu-zhu JIANG, De-jiu DENG, Dong-qin FENG
Format: Article
Language:zho
Published: Editorial Department of Journal on Communications 2012-11-01
Series:Tongxin xuebao
Subjects:
Online Access:http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2012.z2.027/
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Summary:Three delay factors of EPA micro segment:queuing delay,node information processing delay and transmission and propagation delay was analied,and the weight influence of the three major factors of delay on the real-time performance was discussed,through the analysis of the number of nodes in the N and scheduling algorithm factor α on the effects of delay variation,reached two conclusions:1) N=8 is the inflection point of phenomenon of "two eight"between queue delay and node information processing delay;2)when α□0.32,queuing delay will be reduced to be the secondary factors for the influence of the delay.The conclusions provide EPA network reference directions for measures to improve the real-time performance.
ISSN:1000-436X