发布求助
文献互助 智能选刊 最新文献

2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC)最新文献

筛选
英文 中文
Evaluating the Correctness and Effectiveness of a Middleware QoS Configuration Process in Distributed Real-Time and Embedded Systems 评估分布式实时和嵌入式系统中中间件QoS配置过程的正确性和有效性
2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC) Pub Date : 2008-05-05 DOI: 10.1109/ISORC.2008.24
A. Kavimandan, A. Narayanan, A. Gokhale, G. Karsai
{"title":"Evaluating the Correctness and Effectiveness of a Middleware QoS Configuration Process in Distributed Real-Time and Embedded Systems","authors":"A. Kavimandan, A. Narayanan, A. Gokhale, G. Karsai","doi":"10.1109/ISORC.2008.24","DOIUrl":"https://doi.org/10.1109/ISORC.2008.24","url":null,"abstract":"Recent advances in software processes and artifacts for automating middleware configurations in distributed realtime and embedded (DRE) systems are starting to address the complexities faced by system developers in dealing with the flexibility and configurability provided by contemporary middleware. Despite the benefits of these new processes, there remain significant challenges in verifying their correctness, and validating their effectiveness in meeting the end-to-end quality of service (QoS) requirements of DRE systems. This paper addresses this problem by describing how model-checking and structural correspondence can be used to verify the correctness of a middleware QoS configuration process that uses model-based graph transformations at its core. Next, it provides empirical proof to validate the effectiveness of our technique to meet the end-to-end QoS requirements in the context of a representative DRE system.","PeriodicalId":378715,"journal":{"name":"2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121164670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
First Person Shooter Multiplayer Game Traffic Analysis 第一人称射击多人游戏流量分析
2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC) Pub Date : 2008-05-05 DOI: 10.1109/ISORC.2008.28
Qili Zhou, Colin J. Miller, V. Bassilious
{"title":"First Person Shooter Multiplayer Game Traffic Analysis","authors":"Qili Zhou, Colin J. Miller, V. Bassilious","doi":"10.1109/ISORC.2008.28","DOIUrl":"https://doi.org/10.1109/ISORC.2008.28","url":null,"abstract":"Internet delay is important for FPS games because it can determine who wins or loses a game. Network traffic for such games has been analysed using packet size and inter-packet time metrics fitting a statistical model. However, the effect of other network traffic on game traffic was not investigated or considered. This paper explores the traffic generated by an FPS game, taking into account the effects of other Internet traffic. Experiments were conducted in an isolated local network, repeated across the Internet and in a simulator with varying degrees of background traffic. FPS game packet inter-arrival time distribution was observed to spread with the decrease of bandwidth due to other traffic along network paths. The twin peak characteristic of packet inter-arrival time observed in the isolated local network experiment flattens and spreads to a bell-shape as bandwidth decreases due to the increased and non-unique delay of packet arrivals.","PeriodicalId":378715,"journal":{"name":"2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130369771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
Fast Fault-Tolerant Time Synchronization for Wireless Sensor Networks 无线传感器网络快速容错时间同步
2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC) Pub Date : 2008-05-05 DOI: 10.1109/ISORC.2008.37
Sunggu Lee, Ungjin Jang, Junyoung Park
{"title":"Fast Fault-Tolerant Time Synchronization for Wireless Sensor Networks","authors":"Sunggu Lee, Ungjin Jang, Junyoung Park","doi":"10.1109/ISORC.2008.37","DOIUrl":"https://doi.org/10.1109/ISORC.2008.37","url":null,"abstract":"A wireless sensor network (WSN) typically consists of a large number of small-sized devices that have very low computational capability, small amounts of memory and the need to conserve energy as much as possible (most commonly by entering suspended mode for extended periods of time). Previous approaches for WSN time synchronization do not satisfactorily address all of the requirements of WSN environments. Thus, this paper proposes a new fault-tolerant WSN time sychronization algorithm that is extremely fast (when compared to previous algorithms), achieves a guaranteed level of time synchronization for all non-faulty nodes, can accommodate nodes that enter suspended mode and then wake up, utilizes very little communication and computation resources (thereby leaving those resources available for use by other applications), operates in a completely decentralized manner and tolerates up to f faulty nodes. The efficacy of the proposed algorithm is shown using analysis and experimental results.","PeriodicalId":378715,"journal":{"name":"2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129368630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Simplifying the Dualized Threading Model of RTSJ 简化RTSJ的二元线程模型
2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC) Pub Date : 2008-05-05 DOI: 10.1109/ISORC.2008.18
P. Basanta-Val, M. García-Valls, I. Estévez-Ayres
{"title":"Simplifying the Dualized Threading Model of RTSJ","authors":"P. Basanta-Val, M. García-Valls, I. Estévez-Ayres","doi":"10.1109/ISORC.2008.18","DOIUrl":"https://doi.org/10.1109/ISORC.2008.18","url":null,"abstract":"Current RTSJ (the real-time specification for Java) threading model is dualized: programmers have to decide between the high predictability offered by its region-based model and the flexibility offered by its garbage-collected model. Up to now, there is not a unique type of thread that offers, in a single entity, the highest predictability, and flexibility together. This lack has serious consequences on the programmer who has to deal with new and sometimes non-trivial mechanisms, such as queues of objects or the no-heap real-time threads, to avoid the priority inversion caused by the garbage collector, hi order to tackle these issues and provide an improved and more generalized programming model, the authors propose an extension to the current threading model that unifies the RTSJ threading model: the RealtimeThread++ extension.","PeriodicalId":378715,"journal":{"name":"2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130134582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Hardware Objects for Java Java硬件对象
2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC) Pub Date : 2008-05-05 DOI: 10.1109/ISORC.2008.63
Martin Schoeberl, Christian Thalinger, Stephan Korsholm, A. Ravn
{"title":"Hardware Objects for Java","authors":"Martin Schoeberl, Christian Thalinger, Stephan Korsholm, A. Ravn","doi":"10.1109/ISORC.2008.63","DOIUrl":"https://doi.org/10.1109/ISORC.2008.63","url":null,"abstract":"Java, as a safe and platform independent language, avoids access to low-level I/O devices or direct memory access. In standard Java, low-level I/O it not a concern; it is handled by the operating system. However, in the embedded domain resources are scarce and a Java virtual machine (JVM) without an underlying middleware is an attractive architecture. When running the JVM on bare metal, we need access to I/O devices from Java; therefore we investigate a safe and efficient mechanism to represent I/O devices as first class Java objects, where device registers are represented by object fields. Access to those registers is safe as Java's type system regulates it. The access is also fast as it is directly performed by the bytecodes getfield and putfield. Hardware objects thus provide an object-oriented abstraction of low-level hardware devices. As a proof of concept, we have implemented hardware objects in three quite different JVMs: in the Java processor JOP, the JIT compiler CACAO, and in the interpreting embedded JVM SimpleRTJ.","PeriodicalId":378715,"journal":{"name":"2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117347901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 35
Multiprocessors and the Real-Time Specification for Java Java的多处理器和实时规范
2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC) Pub Date : 2008-05-05 DOI: 10.1109/ISORC.2008.22
A. Wellings
{"title":"Multiprocessors and the Real-Time Specification for Java","authors":"A. Wellings","doi":"10.1109/ISORC.2008.22","DOIUrl":"https://doi.org/10.1109/ISORC.2008.22","url":null,"abstract":"Currently, the Real-Time Specification for Java (RTSJ) is silent on multiprocessor issues It attempts not to preclude multiprocessor implementations but provides no direct support. This paper discusses the issues that need to be addressed if the RTSJ is to be better defined for execution on a multiprocessor system. It proposes new dispatching and allocation models. Issues of cost enforcement, interrupts affinity and processor failure are covered.","PeriodicalId":378715,"journal":{"name":"2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120964276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 18
Memory Management for Real-Time Java: State of the Art 实时Java的内存管理:最新进展
2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC) Pub Date : 2008-05-05 DOI: 10.1109/ISORC.2008.40
F. Pizlo, J. Vitek
{"title":"Memory Management for Real-Time Java: State of the Art","authors":"F. Pizlo, J. Vitek","doi":"10.1109/ISORC.2008.40","DOIUrl":"https://doi.org/10.1109/ISORC.2008.40","url":null,"abstract":"The real-time specification for Java extends the Java platform to support real-time processing and introduces a region-based memory model, called scoped memory, which side-steps the Java garbage collector. While scoped memory succeeds in protecting real-time tasks from execution time jitter, practical experience points to shortcomings. This paper takes stock of the state of the art in memory management for RTSJ programs.","PeriodicalId":378715,"journal":{"name":"2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134388562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 25
Wrong Assumptions and Neglected Areas in Embedded Systems Research 嵌入式系统研究中的错误假设与忽视领域
2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC) Pub Date : 2008-05-05 DOI: 10.1109/ISORC.2008.15
H. Kopetz
{"title":"Wrong Assumptions and Neglected Areas in Embedded Systems Research","authors":"H. Kopetz","doi":"10.1109/ISORC.2008.15","DOIUrl":"https://doi.org/10.1109/ISORC.2008.15","url":null,"abstract":"Today many embedded computer applications are developed under the assumptions that the hardware works always as described in the documentation, the operating system is free of design errors and the clients use the system as specified. These assumptions lead to systems that are fragile - they break if even a single transistor out of a billion transistors chip occasionally malfunctions or a sporadic Heisenbug [J. Gray, 1986] occurs in the operating system.","PeriodicalId":378715,"journal":{"name":"2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC)","volume":"2011 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128202418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Middleware Architectures for Distributed Embedded Systems 分布式嵌入式系统的中间件体系结构
2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC) Pub Date : 2008-05-05 DOI: 10.1109/ISORC.2008.31
W. Wolf
{"title":"Middleware Architectures for Distributed Embedded Systems","authors":"W. Wolf","doi":"10.1109/ISORC.2008.31","DOIUrl":"https://doi.org/10.1109/ISORC.2008.31","url":null,"abstract":"A wide range of high-performance distributed embedded systems have been designed and deployed. Physically distributed embedded systems are used for manufacturing and control, traffic analysis, and other problems. Interestingly, today's systems-on-chips are sufficiently complex that they must be treated as distributed embedded systems. At all scales of physical extent, middleware is required to manage the computations. This paper looks at distributed embedded systems at several physical scales and considers the types of middleware that are needed to operate these systems.","PeriodicalId":378715,"journal":{"name":"2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127356294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Realization of an Adaptive Distributed Sound System Based on Global-Time-Based Coordination and Listener Localization 基于全局时间协调和听者定位的自适应分布式音响系统的实现
2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC) Pub Date : 2008-05-05 DOI: 10.1109/ISORC.2008.87
Emmanuel Henrich, Juan A. Colmenares, Keizo Fujiwara, C. Im, K. Kim, L. Zheng
{"title":"Realization of an Adaptive Distributed Sound System Based on Global-Time-Based Coordination and Listener Localization","authors":"Emmanuel Henrich, Juan A. Colmenares, Keizo Fujiwara, C. Im, K. Kim, L. Zheng","doi":"10.1109/ISORC.2008.87","DOIUrl":"https://doi.org/10.1109/ISORC.2008.87","url":null,"abstract":"This paper discusses the benefits of exploiting 1) the principle of global-time-based coordination of distributed computing actions (TCoDA) and 2) a high-level component-/object-based programming approach in developing real-time embedded computing software. The benefits are discussed in the context of a concrete case study. A new major type of distributed multimedia processing applications, called Adaptive Distributed Sound Systems (ADSSs), is presented here to show the compelling nature of the TCoDA exploitation. High-quality ADSSs impose stringent real-time distributed computing requirements. They require a global-time base with precision better than 100 mus. For efficient implementation, the TMO programming scheme and associated tools are shown to be highly useful. In addition, a prototype TMO-based ADSS has been developed and its most important quality attributes have been empirically evaluated. The prototype ADSS has also turned out to be a cost-effective tool for assessing the quality of service of a TMO execution engine.","PeriodicalId":378715,"journal":{"name":"2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115767292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信