SIGBED Rev.最新文献_第4页

Traffic-aware reconfigurable architecture for fault-tolerant 2D mesh NoCs 容错二维网格noc的流量感知可重构架构

SIGBED Rev. Pub Date : 2018-08-15 DOI: 10.1145/3267419.3267423

Poona Bahrebar, D. Stroobandt

引用次数: 3

Impact of time-triggered transmission window placement on rate-constrained traffic in TTEthernet networks 时间触发传输窗口放置对以太网中速率受限流量的影响

SIGBED Rev. Pub Date : 2018-08-15 DOI: 10.1145/3267419.3267420

Florian Heilmann, G. Fohler

{"title":"Impact of time-triggered transmission window placement on rate-constrained traffic in TTEthernet networks","authors":"Florian Heilmann, G. Fohler","doi":"10.1145/3267419.3267420","DOIUrl":"https://doi.org/10.1145/3267419.3267420","url":null,"abstract":"Safety-critical Ethernet-based networks are receiving significant attention in avionics, automotive and industrial domains. Time-Triggered Ethernet (TTEthernet AS6802) provides safety-critical transmission guarantees via a high priority, time-triggered (TT) traffic class and a lower priority, rate-constrained (RC) traffic class. TT traffic is transmitted between synchronized nodes of a TTEthernet network in offline scheduled TT transmission windows. In this work, we analyze the impact of different placement strategies for these TT transmission windows on end-to-end delay and jitter of RC messages on the same path segment. We show that, depending on the placement of TT transmission windows in a schedule, the end-to-end delay and jitter of RC messages can vary significantly. We further introduce link-based offsets, a new placement strategy for TT transmission windows which allows to reduce the impact of TT transmission windows on RC traffic. In this strategy offsets are applied to all TT transmission windows in a physical link schedule to reduce the amount of time that an RC message on the same physical link is delayed by TT traffic. The link-based offsets strategy can be implemented in the TTEthernet scheduler and does not require hardware modifications. We show that the link-based offset strategy can reduce the end-to-end delay and jitter of RC traffic, and evaluate our claims using an OMNET++ simulation.","PeriodicalId":447904,"journal":{"name":"SIGBED Rev.","volume":"330 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115970040","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: 2

Routing algorithms for IEEE802.1Qbv networks IEEE802.1Qbv网络的路由算法

SIGBED Rev. Pub Date : 2018-08-15 DOI: 10.1145/3267419.3267421

N. Nayak, Frank Dürr, K. Rothermel

{"title":"Routing algorithms for IEEE802.1Qbv networks","authors":"N. Nayak, Frank Dürr, K. Rothermel","doi":"10.1145/3267419.3267421","DOIUrl":"https://doi.org/10.1145/3267419.3267421","url":null,"abstract":"The recently published IEEE 802.1Qbv standard specifies enhancements for providing real-time communication guarantees for time-triggered flows while also handling best-effort traffic in a converged Ethernet network. The enhancements include a programmable time-based gating mechanism for stipulating which of the queues of an egress port are available for transmission at any given point of time. By appropriately programming (opening and closing) these gates, the traversal of packets through the network can be controlled to precisely follow a precomputed schedule that satisfies the timing constraints of the time-triggered flows. Computing such transmission schedules requires routing of the flows in the first step, followed by the computation of gate schedules for the flows along their respective routes. So far off-the-shelf algorithms like shortest path routing, which optimize the number of hops over which flows are routed, have been used for computing routes for the time-triggered traffic. In this paper, we explore how the routing of time-triggered flows affects their schedulability. Moreover, we identify additional parameters that must be considered while routing time-triggered traffic and propose ILP-based algorithms for the purpose. Our evaluations show that the proposed routing algorithms could improve the slack in the computed schedules by upto 60 % and 30 % compared to shortest path routing and equal cost multi-pathing (ECMP), respectively, and, thus, increase the capacity of the network to accommodate more time-triggered traffic.","PeriodicalId":447904,"journal":{"name":"SIGBED Rev.","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128081225","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: 40

Performance enhancement of extended AFDX via bandwidth reservation for TSN/BLS shapers 通过TSN/BLS整形器的带宽保留来增强扩展AFDX的性能

SIGBED Rev. Pub Date : 2018-07-03 DOI: 10.1145/3314206.3314209

A. Finzi, A. Mifdaoui, F. Frances, E. Lochin

引用次数: 4

Device microagent for IoT home gateway: a lightweight plug-n-play architecture 物联网家庭网关的设备微代理:轻量级即插即用架构

SIGBED Rev. Pub Date : 2018-06-05 DOI: 10.1145/3231535.3231537

D. Chattopadhyay, Abinash Samantaray, Anupam Datta

引用次数: 3

Where is PELE?: pervasive localization using wearable and handheld devices 贝利在哪里?:使用可穿戴和手持设备的普遍定位

SIGBED Rev. Pub Date : 2018-06-05 DOI: 10.1145/3231535.3231536

L. H. John, Chayan Sarkar, R. V. Prasad

引用次数: 2

Zero energy visible light communication receiver for embedded applications 用于嵌入式应用的零能量可见光通信接收器

SIGBED Rev. Pub Date : 2018-06-05 DOI: 10.1145/3231535.3231540

T. V. Prabhakar, V. Shashidhar, G. Meghana, R. V. Prasad, Garani Vittal Pranavendra

引用次数: 0

Lightweight IO virtualization on MPU enabled microcontrollers 支持MPU的微控制器上的轻量级IO虚拟化

SIGBED Rev. Pub Date : 2018-03-20 DOI: 10.1145/3199610.3199617

F. Paci, D. Brunelli, L. Benini

{"title":"Lightweight IO virtualization on MPU enabled microcontrollers","authors":"F. Paci, D. Brunelli, L. Benini","doi":"10.1145/3199610.3199617","DOIUrl":"https://doi.org/10.1145/3199610.3199617","url":null,"abstract":"In the era of the Internet of Things (IoT), millions of devices and embedded platforms based on low-cost and limited resources microcontroller units (MCUs) will be used in continuous operation. Even if over-the-air firmware update is today a common feature, many applications might require not to reboot or to support hardware resource sharing. In such a context stop, update and reboot the platform is unpractical and dynamic loading of new user code is required. This in turn requires mechanisms to protect the MCU hardware resources and the continuously executing system tasks from uncontrolled perturbation caused by new user code being dynamically loaded. In this paper, we present a framework which provides a lightweight virtualization of the IO and platform peripherals and permits the dynamic loading of new user code. The aim of this work is to support critical isolation features typical of virtualization-ready CPUs on low-cost low-power microcontrollers with no MMU (Memory Management Unit), IOMMU or dedicated instruction extensions. Our approach only leverages the Memory Protection Unit (MPU), which is generally available in all ARM Cortex-M3 and Cortex-M4 microcontrollers. Experimental evaluations demonstrate not only the feasibility, but also the really low impact of the proposed framework in terms of memory requirements and runtime overhead.","PeriodicalId":447904,"journal":{"name":"SIGBED Rev.","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126237795","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: 7

Aligning Deos and RTEMS with the FACE safety base operating system profile 使Deos和RTEMS符合FACE安全基础操作系统配置文件

SIGBED Rev. Pub Date : 2018-03-20 DOI: 10.1145/3199610.3199612

Gedare Bloom, J. Sherrill, G. Gilliland

引用次数: 1

A runtime controller for openCL applications on heterogeneous system architectures 异构系统架构上的openCL应用程序的运行时控制器

SIGBED Rev. Pub Date : 2018-03-20 DOI: 10.1145/3199610.3199614

C. Bolchini, Stefano Cherubin, Gianluca Durelli, Simone Libutti, A. Miele, M. Santambrogio

引用次数: 15