2016 VI Brazilian Symposium on Computing Systems Engineering (SBESC)最新文献_第3页

Design Space Exploration Using UTNoCs and Genetic Algorithm 利用utnoc和遗传算法设计空间探索

2016 VI Brazilian Symposium on Computing Systems Engineering (SBESC) Pub Date : 2016-11-01 DOI: 10.1109/SBESC.2016.038

J. Mesquita, Marcos Oliveira da Cruz, M. Pereira, M. Kreutz

引用次数: 3

Mobile Nodes as a Dynamic Management Strategy to Improve Coverage in Wireless Sensor Networks 移动节点作为一种提高无线传感器网络覆盖的动态管理策略

2016 VI Brazilian Symposium on Computing Systems Engineering (SBESC) Pub Date : 2016-11-01 DOI: 10.1109/SBESC.2016.035

A. Gonzalez, P. Ferreira, L. Brisolara

引用次数: 2

Characterizing Interoperability in Context-Aware Software Systems 上下文感知软件系统的互操作性特征

2016 VI Brazilian Symposium on Computing Systems Engineering (SBESC) Pub Date : 2016-11-01 DOI: 10.1109/SBESC.2016.039

R. Motta, K. Oliveira, G. Travassos

引用次数: 11

The Integration of GPU-based and Heterogeneous Devices Using HLA 基于gpu和异构器件的HLA集成

2016 VI Brazilian Symposium on Computing Systems Engineering (SBESC) Pub Date : 2016-11-01 DOI: 10.1109/SBESC.2016.032

Halamo G. R. Andrade, Daniel C. Morais, T. W. Silva, T. Nascimento, A. Brito

引用次数: 1

An Embedded Nonlinear Model Predictive Formation Controller for Low-Cost Architectures 一种用于低成本结构的嵌入式非线性模型预测编队控制器

2016 VI Brazilian Symposium on Computing Systems Engineering (SBESC) Pub Date : 2016-11-01 DOI: 10.1109/SBESC.2016.041

Diego Sousa, T. Nascimento, A. Brito

引用次数: 0

On the Impact of Dynamic Routing Metrics on a Geographic Protocol for WSNs 动态路由度量对无线传感器网络地理协议的影响

2016 VI Brazilian Symposium on Computing Systems Engineering (SBESC) Pub Date : 2016-11-01 DOI: 10.1109/SBESC.2016.024

Davi Resner, G. Araújo, A. A. Fröhlich

{"title":"On the Impact of Dynamic Routing Metrics on a Geographic Protocol for WSNs","authors":"Davi Resner, G. Araújo, A. A. Fröhlich","doi":"10.1109/SBESC.2016.024","DOIUrl":"https://doi.org/10.1109/SBESC.2016.024","url":null,"abstract":"Message routing is a keystone of Wireless Sensor Networks (WSN). In many routing algorithms, sensor nodes forward data in a multicast fashion and a specific routing metric defines which of the receiving nodes is the next forwarder. If this metric is static, optimal routes tend to be overused and nodes in that route die quickly. The Trustful Space-Time Protocol (TSTP) is a cross-layer protocol designed to deliver authenticated, encrypted, timed, and georeferenced messages containing SI-compliant data in a resource-efficient way. It defines a novel, data-centric paradigm for programming WSNs and the IoT. In this paper, we discuss and evaluate dynamic routing in TSTP, which can explore routing metrics naturally given by the protocol's cross-layer, geo-oriented design, such as distance to the destination and message TTL (Time-to-Live). We introduce the idea of spatial distortion to map virtually any metric into a time-to-transmit offset, and evaluate the impact of different combinations of metrics. We assess the spatial distortion metrics on a TSTP implementation over IEEE 802.15.4 on the OMNET++ simulator, comparing their impact on the network in terms of end-to-end delay, fairness index, and delivery ratio.","PeriodicalId":336703,"journal":{"name":"2016 VI Brazilian Symposium on Computing Systems Engineering (SBESC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123528619","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

Towards a Metamodel for a Requirements Engineering Process of Embedded Systems 嵌入式系统需求工程过程的元模型研究

2016 VI Brazilian Symposium on Computing Systems Engineering (SBESC) Pub Date : 2016-11-01 DOI: 10.1109/SBESC.2016.022

Tarcísio Pereira, Deivson Albuquerque, Aêda Sousa, F. Alencar, J. Castro

引用次数: 7

Cryptographic API for Embedded Applications 嵌入式应用的加密API

2016 VI Brazilian Symposium on Computing Systems Engineering (SBESC) Pub Date : 2016-11-01 DOI: 10.1109/SBESC.2016.034

Felipe Michels Fontoura, C. Maziero, M. A. Wehrmeister

{"title":"Cryptographic API for Embedded Applications","authors":"Felipe Michels Fontoura, C. Maziero, M. A. Wehrmeister","doi":"10.1109/SBESC.2016.034","DOIUrl":"https://doi.org/10.1109/SBESC.2016.034","url":null,"abstract":"This paper presents GEmSysC, an unified cryptographic API for embedded systems. Software layers implementing this API can be built over existing libraries, allowing embedded software to access cryptographic functions in a consistent way that does not depend on the underlying library. The API complies to good practices for API design and good practices for embedded software development and took its inspiration from other cryptographic libraries and standards. The main inspiration for creating GEmSysC was the CMSIS-RTOS standard, which defines an unified API for embedded software in a implementation-independent way, but targets operating systems instead of cryptographic functions. GEmSysC is made of a generic core and attachable modules, one for each cryptographic algorithm. Until now, three modules were been fully specified: AES, RSA, and SHA-256. As a proof of concept, two implementations of GEmSysC were made. One of them was built over wolfSSL, which is an open source library for embedded systems. The other was built over OpenSSL, which is open source and a de facto standard. Unlike wolfSSL, OpenSSL does not specifically target embedded systems. This paper displays test results showing GEmSysC to be simpler than other libraries in some aspects. These results have shown that both implementations incur in little overhead in computation time compared to the cryptographic libraries themselves. The overhead of the implementation has been measured for each cryptographic algorithm and is between around 0% and 0.17% for the implementation over wolfSSL and between 0.03% and 1.40% for the one over OpenSSL. This document also presents the memory costs for each implementation.","PeriodicalId":336703,"journal":{"name":"2016 VI Brazilian Symposium on Computing Systems Engineering (SBESC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121977829","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

Mutant Components: Efficiently Managing Multiple Implementations 突变组件:有效管理多个实现

2016 VI Brazilian Symposium on Computing Systems Engineering (SBESC) Pub Date : 2016-11-01 DOI: 10.1109/SBESC.2016.023

João Gabriel Reis, A. A. Fröhlich

{"title":"Mutant Components: Efficiently Managing Multiple Implementations","authors":"João Gabriel Reis, A. A. Fröhlich","doi":"10.1109/SBESC.2016.023","DOIUrl":"https://doi.org/10.1109/SBESC.2016.023","url":null,"abstract":"The development of embedded system applications is driven by the usage of models of computation and their interaction with the underlying programming language and the interfaces of system components. Behind each interface there is a series of software and hardware operations with different shapes according to the availability of implementations, hardware accelerators, or processor cores, and the environmental conditions faced by the embedded system such as the power consumption or even the chip's temperature. For example, when running out of battery, a mobile device can decide to reconfigure the implementation of critical components for one that consumes less energy by delivering a functionality with a lower quality-of-service without depleting the battery. To cope with such adaptive systems without breaking the interface each component provide to the application, we propose a framework for mutant components whose implementation can be reconfigured during runtime. The system synthesis delivers a tailored wrapper for each component according to the number of implementations it has. We evaluate our proposal by profiling the execution time of methods from three components (AES, ADPCM, and DTMF) with a hardware and a software implementation to evaluate the overhead incurred to the resulting architecture regarding its the execution time.","PeriodicalId":336703,"journal":{"name":"2016 VI Brazilian Symposium on Computing Systems Engineering (SBESC)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130707613","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

Evaluation of TDMA Robustness in WirelessHART Networks 无线shart网络中TDMA鲁棒性的评估

2016 VI Brazilian Symposium on Computing Systems Engineering (SBESC) Pub Date : 2016-11-01 DOI: 10.1109/SBESC.2016.040

J. Winter, C. Pereira, J. Netto, Fernando A. Souza, C. M. D. Costa, I. Müller

引用次数: 0