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

页码：184 / 191

页数：8

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