Using Simulations to Study the Efficiency of Update Control Protocols

被引：4

作者：

Pfitzinger, Bernd ^{[1
,2
]}

Baumann, Tommy ^{[3
]}

Macos, Dragan ^{[4
]}

Jestaedt, Thomas ^{[1
]}

机构：

[1] Toll Collect GmbH, Linkstr 4, D-10785 Berlin, Germany

[2] FOM Hochschule Oekonomie & Management, D-90443 Nurnberg, Germany

[3] Andato GmbH & Co KG, D-98693 Ilmenau, Germany

[4] Beuth Hochschule Technik, D-13353 Berlin, Germany

来源：

2014 47TH HAWAII INTERNATIONAL CONFERENCE ON SYSTEM SCIENCES (HICSS) | 2014年

关键词：

GERMAN TOLL SYSTEM; DESIGN;

D O I：

10.1109/HICSS.2014.634

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Taking an existing large-scale realistic discrete event simulation model [1, 2] of a mobile distributed system with more than 700 000 units we investigate the efficiency of control protocols for the software and data updates of on-board-units (OBUs). Adding four different closed-loop control protocols to the existing simulation model we explain and investigate the technical implications of the control protocols: OBUs that allow incoming network connections can be reached at any time (Always-On or Sometimes-On). If the OBU is designed without a TCP/IP server, signaling is implemented either as polling (Sometimes-On with polling) or using a dedicated GSM signaling channel (On-Demand-On). The efficiency is discussed as a combination of metrics gathered during simulation runs and compared with the OBU-controlled update logic. These simulation results are subsequently used as input for the system development process.

引用

页码：5154 / 5161

页数：8

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