2012 Second Symposium on Network Cloud Computing and Applications最新文献

Distributed Architectures for Intelligent Transport Systems: A Survey 智能交通系统的分布式架构:综述

2012 Second Symposium on Network Cloud Computing and Applications Pub Date : 2012-12-03 DOI: 10.1109/NCCA.2012.15

Robayet Nasim, A. Kassler

引用次数: 17

Flexible Integration of Eventually Consistent Distributed Storage with Strongly Consistent Databases 最终一致性分布式存储与强一致性数据库的灵活集成

2012 Second Symposium on Network Cloud Computing and Applications Pub Date : 2012-12-03 DOI: 10.1109/NCCA.2012.23

O. Parisot, Antoine Schlechter, Pascal Bauler, F. Feltz

{"title":"Flexible Integration of Eventually Consistent Distributed Storage with Strongly Consistent Databases","authors":"O. Parisot, Antoine Schlechter, Pascal Bauler, F. Feltz","doi":"10.1109/NCCA.2012.23","DOIUrl":"https://doi.org/10.1109/NCCA.2012.23","url":null,"abstract":"In order to design distributed business applications or services, the common practice consists in setting up a multi-tier architecture on top of a relational database. Due to the recent evolution of the needs in terms of scalability and availability in cloud environments, the design of the data access layer got significantly more complicated because of the trade-off decisions between consistency, scalability and availability that have to be taken into account in accordance with the CAP theorem. An interesting compromise in this context consists in offering some flexibility at the consistency level, in order to allow multi-tier architectures to support partition tolerance flexibility while guaranteeing availability. This paper introduces a flexible data layer that guarantees availability and gives the ability to the developers to easily select the required execution context, by integrating eventually consistent storage with strongly consistent databases. A given query can either be executed in an eventually consistent but very scalable context or in a strongly consistent context with limited scalability. The benefits of the proposed framework are validated in a real-world use case.","PeriodicalId":393661,"journal":{"name":"2012 Second Symposium on Network Cloud Computing and Applications","volume":"132 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125260136","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

Dynamic Topology Orchestration for Distributed Cloud-Based Applications 分布式云应用的动态拓扑编排

2012 Second Symposium on Network Cloud Computing and Applications Pub Date : 2012-12-03 DOI: 10.1109/NCCA.2012.14

Alexandru-Florian Antonescu, P. Robinson, T. Braun

引用次数: 27

A Scalable Architecture for Real-Time Monitoring of Large Information Systems 大型信息系统实时监控的可扩展体系结构

2012 Second Symposium on Network Cloud Computing and Applications Pub Date : 2012-12-03 DOI: 10.1109/NCCA.2012.24

M. Andreolini, M. Colajanni, M. Pietri

引用次数: 28

Supporting Apps in the Personal Cloud: Using WebSockets within Hybrid Apps 支持个人云中的应用:在混合应用中使用WebSockets

2012 Second Symposium on Network Cloud Computing and Applications Pub Date : 2012-12-03 DOI: 10.1109/NCCA.2012.28

R. Kazi, Xiaobo Zhang, R. Deters

引用次数: 8

Design and Architecture of Cloud-Based Mobile Phone Sensing Middleware 基于云的手机感知中间件设计与体系结构

2012 Second Symposium on Network Cloud Computing and Applications Pub Date : 2012-12-03 DOI: 10.1109/NCCA.2012.12

Shunsuke Mori, Yu-Chih Wang, T. Umedu, Akihito Hiromori, H. Yamaguchi, T. Higashino

引用次数: 4

Distributed Ontology Cloud Storage System 分布式本体云存储系统

2012 Second Symposium on Network Cloud Computing and Applications Pub Date : 2012-12-03 DOI: 10.1109/NCCA.2012.13

M. Khafagy, Haytham Tawfeek al Feel

引用次数: 4

An Android-Enabled Mobile Framework for Ubiquitous Access to Cloud Emergency Medical Services 一个支持android的移动框架，用于无处不在地访问云紧急医疗服务

2012 Second Symposium on Network Cloud Computing and Applications Pub Date : 2012-12-03 DOI: 10.1109/NCCA.2012.30

Vassiliki Koufi, F. Malamateniou, G. Vassilacopoulos, A. Prentza

{"title":"An Android-Enabled Mobile Framework for Ubiquitous Access to Cloud Emergency Medical Services","authors":"Vassiliki Koufi, F. Malamateniou, G. Vassilacopoulos, A. Prentza","doi":"10.1109/NCCA.2012.30","DOIUrl":"https://doi.org/10.1109/NCCA.2012.30","url":null,"abstract":"Recently, there has been a remarkable upsurge in activity surrounding the adoption of Personal Health Records (PHRs). Since PHRs contain global patient information and not certain pieces collected by individual healthcare providers, they can be used as basic infrastructures for building and operating several important systems for both healthcare and the tax payers. Emergency medical systems (EMS) are among the most crucial ones as they involve a variety of activities which are performed from the time of a call to an ambulance service till the time of patient's discharge from the emergency department of a hospital and are closely interrelated so that collaboration and coordination becomes a vital issue for patients and for emergency healthcare service performance. The integration of leading-edge technologies, such as cloud-based services and mobile technology, with Personal Health Records (PHRs) can prove important in emergency care delivery as it can facilitate authorized access to comprehensive and unified health information at any point of care or decision making through familiar environments such as Google's Android. This paper is concerned with the development of a PHR-based EMS in a cloud computing environment. The proposed EMS is accessible by Android-enabled mobile devices and incorporates a customized asynchronous notification feature whereby caregivers are notified on critical data updates in a way that efficient utilization of mobile device resources is achieved. This feature draws upon a cloud-based push messaging mechanism, namely Google Cloud Messaging, a lightweight mechanism which enables servers to communicate asynchronously with mobile applications running on Android Operating System.","PeriodicalId":393661,"journal":{"name":"2012 Second Symposium on Network Cloud Computing and Applications","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127688090","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: 28

vNFC: A Virtual Networking Function Container for SDN-Enabled Virtual Networks vNFC:用于支持sdn的虚拟网络的虚拟网络功能容器

2012 Second Symposium on Network Cloud Computing and Applications Pub Date : 2012-12-03 DOI: 10.1109/NCCA.2012.18

Ryota Kawashima

{"title":"vNFC: A Virtual Networking Function Container for SDN-Enabled Virtual Networks","authors":"Ryota Kawashima","doi":"10.1109/NCCA.2012.18","DOIUrl":"https://doi.org/10.1109/NCCA.2012.18","url":null,"abstract":"Software-defined networks (SDN) has gradually been deployed on commercial networks such as datacenter networks. Current SDN is based on OpenFlow technology that is a set ofnetwork flow control API for switch devices. For instance, network reachability between end-hosts (or virtual machines), packet filtering mechanisms, and status management of switches are enabled by the API. In practice, however, current OpenFlow-based SDN has following problems: no application-layer protocol support and switch-oriented flow control. Since OpenFlow targets L2-L4 flow handling, users have to arrange additional mechanism for upper-layer flow control. Furthermore, executing a lot of flow matching on a single switch (or virtual switch) can cause difficulty in network trace and overall performance degradation.This paper proposes a virtual networking function container (vNFC) that is a set of software implemented networking functions for VM-to-VM communications, and it is located between a virtual machine and a virtual network device of the host machine. vNFC enables not only lower-layer functions OpenFlow providing, but also upper-layer functions like application firewall in the same manner. That is, vNFC is a virtual machine dedicated flow handling function set. In addition, OpenFlow-compatible vNFC configuration protocol named OpenNF and vNFC controller are also presented. OpenNF provides communication path between each networking function and the controller for configuration and decision making.In this paper, architectural design and implementation of vNFC are presented, and also performance evaluation of using vNFC. The evaluation result shows that a lightweight networking function does not impact on the performance, but a function that frequently communicates with the controller incurs millisecond order cost per frame transmission.","PeriodicalId":393661,"journal":{"name":"2012 Second Symposium on Network Cloud Computing and Applications","volume":"304 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116795259","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

Dynamic Data Replication Scheme in the Cloud Computing Environment 云计算环境下的动态数据复制方案

2012 Second Symposium on Network Cloud Computing and Applications Pub Date : 2012-12-03 DOI: 10.1109/NCCA.2012.10

Myunghoon Jeon, Kwang-Ho Lim, Hyun Ahn, Byoung-Dai Lee

引用次数: 15