International Journal of Embedded and Real-Time Communication Systems (IJERTCS)最新文献_第6页

TIME SYNCHRONIZATION MECHANISMS FOR SPACEFIBRE NETWORKS AND THEIR IMPLEMENTATIONS 空间光纤网络的时间同步机制及其实现

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International Journal of Embedded and Real-Time Communication Systems (IJERTCS) Pub Date : 2022-01-01 DOI: 10.4018/ijertcs.302109

引用次数: 0

An architecture of the semantic meta mining assistant for adaptive domain-oriented data processing 面向自适应领域数据处理的语义元挖掘助手体系结构

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International Journal of Embedded and Real-Time Communication Systems (IJERTCS) Pub Date : 2022-01-01 DOI: 10.4018/ijertcs.302111

引用次数: 0

An Improved Unified AES Implementation using FPGA 基于FPGA的改进AES统一实现

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International Journal of Embedded and Real-Time Communication Systems (IJERTCS) Pub Date : 2022-01-01 DOI: 10.4018/ijertcs.302110

引用次数: 0

Real-Time Performance Analysis and Tuning of Embedded System Virtualization Architecture based on KVM 基于KVM的嵌入式系统虚拟化架构实时性能分析与调优

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International Journal of Embedded and Real-Time Communication Systems (IJERTCS) Pub Date : 2022-01-01 DOI: 10.4018/ijertcs.302113

引用次数: 0

Forecasting Telecommunication Network States on the Basis of Log Patterns Analysis and Knowledge Graphs Modeling 基于日志模式分析和知识图建模的电信网络状态预测

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International Journal of Embedded and Real-Time Communication Systems (IJERTCS) Pub Date : 2022-01-01 DOI: 10.4018/ijertcs.311464

K. Krinkin, A. Vodyaho, I. Kulikov, N. Zhukova

{"title":"Forecasting Telecommunication Network States on the Basis of Log Patterns Analysis and Knowledge Graphs Modeling","authors":"K. Krinkin, A. Vodyaho, I. Kulikov, N. Zhukova","doi":"10.4018/ijertcs.311464","DOIUrl":"https://doi.org/10.4018/ijertcs.311464","url":null,"abstract":"The article proposes a state forecasting method for telecommunications networks (TN) that is based on the analysis of behavioral models observed on users' network devices. The method applies user behavior that makes it possible to forecast with more accuracy both the network parameters and the load at various back-ends. Suggested forecasts facilitate implementing reasonable reconfiguration of the TN. The new method proposed as a further development of TN states the forecasting method presented by the authors before. In this new version, forecasting algorithm users' behavioral models are involved. The models refer to a class of time diagrams of device transitions between different states. The novelty of the proposed method is that resulting TN models enable forecasting device state transitions represented in a device state diagram in the form of knowledge graph, in particular changes in loads of different back-ends. The provided case study for a subgroup of network devices demonstrated how their states can be forecasted using behavioral models obtained from log files.","PeriodicalId":38446,"journal":{"name":"International Journal of Embedded and Real-Time Communication Systems (IJERTCS)","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46404162","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

One Approach to Improving Smart Environment Communication via the Security Parameter 通过安全参数改进智能环境通信的一种方法

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International Journal of Embedded and Real-Time Communication Systems (IJERTCS) Pub Date : 2022-01-01 DOI: 10.4018/ijertcs.313042

Narves Behlilovic

{"title":"One Approach to Improving Smart Environment Communication via the Security Parameter","authors":"Narves Behlilovic","doi":"10.4018/ijertcs.313042","DOIUrl":"https://doi.org/10.4018/ijertcs.313042","url":null,"abstract":"Improving smart environment communication remains a final unachievable destination. Continuous optimization in smart environment communication is mandatory because of an emerging number of connected devices. Carefully observing its parameters and demands leads to acknowledging existing challenges and boundaries regarding areas covered with signal and possibilities of approaching network architecture, limited battery resources in certain nodes of network architecture, privacy, and security of existing data transfer. One approach to dealing with these communication challenges and boundaries is focusing on important technical parameters respectively, signal processing speed, communication nodes distance, and communication channel security. The aim of this article is to point out these most important communication parameters in smart environments and how changing those can affect communication. Its original contribution is represented in establishing principles for governing security parameters by using permanent magnets in order to produce Faraday's rotation and thus manipulate the whole process of communication in a smart environment.","PeriodicalId":38446,"journal":{"name":"International Journal of Embedded and Real-Time Communication Systems (IJERTCS)","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46500734","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: 0

Building Time-Triggered Schedules for Typed-DAG Tasks with Alternative Implementations 为具有可选实现的类型dag任务构建时间触发计划

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International Journal of Embedded and Real-Time Communication Systems (IJERTCS) Pub Date : 2021-08-31 DOI: 10.1109/RTCSA55878.2022.00017

H. Zahaf, Nicola Capodieci

{"title":"Building Time-Triggered Schedules for Typed-DAG Tasks with Alternative Implementations","authors":"H. Zahaf, Nicola Capodieci","doi":"10.1109/RTCSA55878.2022.00017","DOIUrl":"https://doi.org/10.1109/RTCSA55878.2022.00017","url":null,"abstract":"Real-time and latency sensitive applications such as autonomous driving, feature an increasing need of computational power that traditional multi-core platforms can not provide. For this purpose, many heterogeneous embedded platforms have been released recently. They offer a set of diverse processing elements (e.g. GPUs, DSPs, ASICs, etc...) in order to manage the computational demands of data hungry applications. The system engineer, therefore, can choose the fittest processing element for each specific subtask. In this context, timing constraints and related task models are of paramount importance.The HPC-DAG (Heterogeneous Parallel Directed Acyclic Graph) task model has been recently proposed to capture real-time workload execution on modern heterogeneous platforms. It expresses the Instruction Set Architecture (ISA) heterogeneity across the different compute accelerators, but also their differences in terms of possible scheduling policies such as preemption.In this paper, we propose a time-table scheduling approach to allocate and schedule a set of HPC-DAG tasks onto a set of heterogeneous cores, by the mean of Integer Linear Programming (ILP). Our design allows the system engineer to handle heterogeneity of resources, of on-line execution costs, and of a part of the tasks and sub-tasks allocation to cores. It improves the solving time compared to the state of the art by gradually exploring the design space.","PeriodicalId":38446,"journal":{"name":"International Journal of Embedded and Real-Time Communication Systems (IJERTCS)","volume":"6 1","pages":"103-112"},"PeriodicalIF":0.7,"publicationDate":"2021-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88794766","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: 0

Work-in-Progress Abstract: The impact of the period variation on execution time distributions of programs 摘要:周期变化对程序执行时间分布的影响

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International Journal of Embedded and Real-Time Communication Systems (IJERTCS) Pub Date : 2021-08-01 DOI: 10.1109/RTCSA52859.2021.00033

L. Cucu-Grosjean, A. Bar-Hen, Y. Sorel, Hadrien A. Clarke

{"title":"Work-in-Progress Abstract: The impact of the period variation on execution time distributions of programs","authors":"L. Cucu-Grosjean, A. Bar-Hen, Y. Sorel, Hadrien A. Clarke","doi":"10.1109/RTCSA52859.2021.00033","DOIUrl":"https://doi.org/10.1109/RTCSA52859.2021.00033","url":null,"abstract":"Designers of embedded real-time systems derive, in general, their time parameters such as activation periods from those of sensors or actuators. By designers, we mean the team in charge of conceiving embedded real-time systems. This team includes Control Theory designers and Computer Science designers. Within this paper we present the point of view of Computer Science designers, while the periods proposed by Control Theory designers are supposed robust with respect to the physical behavior of the system. The execution times are, then, estimated by studying statically the programs structure or dynamically the programs execution. In some cases, both activation periods and execution times depend on a sensor information. For instance, they depend on the angular speed of wheels within an automotive embedded real-time system and such systems follow a rate-dependent model. Elastic tasks is another model, where one may consider execution time variation depending on the selected period. Within this paper, we are interested in describing statistically the relationship between activation periods and execution times of programs. More precisely, we study the impact of the period variation on the distributions of the execution times. To illustrate our preliminary results, we consider, as case study, the set of programs executing the autopilot of an open-source PX4 drone.","PeriodicalId":38446,"journal":{"name":"International Journal of Embedded and Real-Time Communication Systems (IJERTCS)","volume":"516 1","pages":"204-206"},"PeriodicalIF":0.7,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77117673","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: 0

Work-in-Progress Abstract: Revealing and Analyzing Architectural Models in Open-source ArduPilot 摘要:揭示和分析开源ArduPilot的架构模型

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International Journal of Embedded and Real-Time Communication Systems (IJERTCS) Pub Date : 2021-08-01 DOI: 10.1109/RTCSA52859.2021.00034

S. Staroletov

{"title":"Work-in-Progress Abstract: Revealing and Analyzing Architectural Models in Open-source ArduPilot","authors":"S. Staroletov","doi":"10.1109/RTCSA52859.2021.00034","DOIUrl":"https://doi.org/10.1109/RTCSA52859.2021.00034","url":null,"abstract":"Building robust software can be considered a major challenge in current software engineering processes. This task is especially relevant for the code of cyber-physical systems (CPS) that interact with tangible data of the environment and make decisions that have an impact on the real world. The study of good practices of the architectural organization of such software systems is suitable to conduct on solutions with open-source code, which are developed by large communities of enthusiasts. Such a code bears a long history and has been tested many times on real devices in a real-world environment. The construction of various models using the program code allows us to understand stable architectural solutions, to present them in a graphical form; these solutions can be used in STEM centers when designing other systems, taking into account all the achievements of the communities. In addition, it is possible to propose methods for analyzing models to prove various properties of cyber-physical systems. In this paper, we analyze ArduPilot Mega (APM), an Arduino-compatible solution for building DIY driving and flying systems. The solution is based on a specially designed board with a controller and necessary peripherals, as well as a firmware code in a C++ -compatible dialect. Since there are many limitations associated with hardware, it is advisable to carry out a so-called co-modeling, taking into account both hardware and software sides. We consider modeling the interaction of equipment on connected pins and data transmission buses, the software part in the form of a class diagram for the solution. We then describe methods for analyzing the interactions between tasks running on the system through shared variables and evaluating the performance of the task scheduler.","PeriodicalId":38446,"journal":{"name":"International Journal of Embedded and Real-Time Communication Systems (IJERTCS)","volume":"29 1","pages":"207-209"},"PeriodicalIF":0.7,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82583185","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

Enhanced Schedulability Tests for Real-Time Regularity-Based Virtualized Systems with Dependent and Self-Suspension Tasks 具有依赖任务和自挂起任务的基于实时规律的虚拟化系统的增强可调度性测试

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International Journal of Embedded and Real-Time Communication Systems (IJERTCS) Pub Date : 2021-08-01 DOI: 10.1007/s11241-022-09391-w

Guangli Dai, Pavan Kumar Paluri, A. Cheng

引用次数: 2