Reliable Hard Real-Time Communication in Industrial and Embedded Systems

被引：3
|
作者：
Jonsson, Magnus [1 ]
Kunert, Kristina [1 ]
机构：
[1] Halmstad Univ, CERES, Sch Informat Sci Comp & Elect Engn, Halmstad, Sweden
来源：
2008 INTERNATIONAL SYMPOSIUM ON INDUSTRIAL EMBEDDED SYSTEMS | 2008年
关键词：
Real-time communication; reliability; ARQ; delay bound guarantee;
D O I：
10.1109/SIES.2008.4577698
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper presents a framework for how to use ARQ (Automatic Repeat Request) in combination with real-time worst-case scheduling analysis to be able to support reliable hard real-time communication. We show how to handle retransmissions of erroneous data packets, while still not jeopardizing stated delay guarantees of other packets. We demonstrate this by taking a point-to-point link as an example. Through our simulation studies we have shown that a reduction of the message error rate by several orders of magnitude is possible with a reasonable utilization penalty.
引用
收藏
页码：184 / 191
页数：8
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