2011 IEEE Nineteenth IEEE International Workshop on Quality of Service最新文献_第2页

DynaQoS: Model-free self-tuning fuzzy control of virtualized resources for QoS provisioning DynaQoS:对虚拟化资源进行无模型自调优模糊控制，提供QoS服务

2011 IEEE Nineteenth IEEE International Workshop on Quality of Service Pub Date : 2011-06-06 DOI: 10.1109/IWQOS.2011.5931341

J. Rao, Yudi Wei, Jiayu Gong, Chengzhong Xu

{"title":"DynaQoS: Model-free self-tuning fuzzy control of virtualized resources for QoS provisioning","authors":"J. Rao, Yudi Wei, Jiayu Gong, Chengzhong Xu","doi":"10.1109/IWQOS.2011.5931341","DOIUrl":"https://doi.org/10.1109/IWQOS.2011.5931341","url":null,"abstract":"Cloud elasticity allows dynamic resource provisioning in concert with actual application demands. Feedback control approaches have been applied with success to resource allocation in physical servers. However, cloud dynamics make the design of an accurate and stable resource controller more challenging, especially when response time is considered as the measured output. Response time is highly dependent on the characteristics of workload and sensitive to cloud dynamics. To address the challenges, we extend a self-tuning fuzzy control (STFC) approach, originally developed for response time assurance in web servers to resource allocation in virtualized environments. We introduce mechanisms for adaptive output amplification and flexible rule selection in the STFC approach for better adaptability and stability. Based on the STFC, we further design a two-layer QoS provisioning framework, DynaQoS, that supports adaptive multi-objective resource allocation and service differentiation. We implement a prototype of DynaQoS on a Xen-based cloud testbed. Experimental results on an E-Commerce benchmark show that STFC outperforms popular controllers such as Kalman filter, ARMA and adaptive PI by at least 16% and 37% under both static and dynamic workloads, respectively. Further results with multiple control objectives and service classes demonstrate the effectiveness of DynaQoS in performance-power control and service differentiation.","PeriodicalId":127279,"journal":{"name":"2011 IEEE Nineteenth IEEE International Workshop on Quality of Service","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129253966","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: 60

Thwarting Spam over Internet Telephony (SPIT) attacks on VoIP networks 阻止垃圾邮件通过互联网电话(吐)攻击VoIP网络

2011 IEEE Nineteenth IEEE International Workshop on Quality of Service Pub Date : 2011-06-06 DOI: 10.1109/IWQOS.2011.5931335

Hemant Sengar, Xinyuan Wang, Arthur Nichols

引用次数: 17

Adaptive data-driven service integrity attestation for multi-tenant cloud systems 多租户云系统的自适应数据驱动服务完整性认证

2011 IEEE Nineteenth IEEE International Workshop on Quality of Service Pub Date : 2011-06-06 DOI: 10.1109/IWQOS.2011.5931339

Juan Du, Xiaohui Gu, Nidhi Shah

{"title":"Adaptive data-driven service integrity attestation for multi-tenant cloud systems","authors":"Juan Du, Xiaohui Gu, Nidhi Shah","doi":"10.1109/IWQOS.2011.5931339","DOIUrl":"https://doi.org/10.1109/IWQOS.2011.5931339","url":null,"abstract":"Cloud systems provide a cost-effective service hosting infrastructure for application service providers (ASPs). However, cloud systems are often shared by multiple tenants from different security domains, which makes them vulnerable to various malicious attacks. Moreover, cloud systems often host long-running applications such as massive data processing, which provides more opportunities for attackers to exploit the system vulnerability and perform strategic attacks. In this paper, we present AdapTest, a novel adaptive data-driven runtime service integrity attestation framework for multi-tenant cloud systems. AdapTest can significantly reduce attestation overhead and shorten detection delay by adaptively selecting attested nodes based on dynamically derived trust scores. Our scheme treats attested services as black-boxes and does not impose any special hardware or software requirements on the cloud system or ASPs. We have implemented AdapTest on top of the IBM System S stream processing system and tested it within a virtualized computing cluster. Our experimental results show that AdapTest can reduce attestation overhead by up to 60% and shorten the detection delay by up to 40% compared to previous approaches.","PeriodicalId":127279,"journal":{"name":"2011 IEEE Nineteenth IEEE International Workshop on Quality of Service","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116701138","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: 32

An MDP-based admission control for a QoS-aware service-oriented system 用于qos感知的面向服务系统的基于mdp的准入控制

2011 IEEE Nineteenth IEEE International Workshop on Quality of Service Pub Date : 2011-06-06 DOI: 10.1109/IWQOS.2011.5931324

Marco Abundo, V. Cardellini, F. L. Presti

引用次数: 8

Initial CWND determination method for fast startup TCP algorithms 快速启动TCP算法的初始CWND确定方法

2011 IEEE Nineteenth IEEE International Workshop on Quality of Service Pub Date : 2011-06-06 DOI: 10.1109/IWQOS.2011.5931321

Sho Kodama, M. Shimamura, K. Iida

引用次数: 9

Applying stochastic network calculus to 802.11 backlog and delay analysis 随机网络演算在802.11积压和延迟分析中的应用

2011 IEEE Nineteenth IEEE International Workshop on Quality of Service Pub Date : 2011-06-06 DOI: 10.1109/IWQOS.2011.5931337

Yue Wang, Tianmei Wang

引用次数: 8

Evaluating coverage quality through best covered pathes in wireless sensor networks 通过无线传感器网络中最佳覆盖路径评估覆盖质量

2011 IEEE Nineteenth IEEE International Workshop on Quality of Service Pub Date : 2011-06-06 DOI: 10.1109/IWQOS.2011.5931351

Shaojie Tang, Xufei Mao, Xiangyang Li, Guojun Dai

引用次数: 2

Architecture and algorithms for virtual routers as a service 虚拟路由器即服务的体系结构和算法

2011 IEEE Nineteenth IEEE International Workshop on Quality of Service Pub Date : 2011-06-06 DOI: 10.1109/IWQOS.2011.5931325

Z. Bozakov

{"title":"Architecture and algorithms for virtual routers as a service","authors":"Z. Bozakov","doi":"10.1109/IWQOS.2011.5931325","DOIUrl":"https://doi.org/10.1109/IWQOS.2011.5931325","url":null,"abstract":"The deployment of virtualized network resources has the potential to spur new business models and increase flexibility for network customers as well as infrastructure operators. It is worthwhile to re-evaluate how to effectively express traditional network elements in the virtualization domain. In this paper we consider network routers and argue that the representation of routing functionality as a service, rather than an isolated virtual resource is better suited in the virtualization context. We present an architecture enabling physical infrastructure operators to provide routing as a service. To this end, distributed forwarding elements are combined to appear a single virtual router instance which routes traffic between a set of customer points of presence. We provide embedding algorithms for virtual router topologies with minimum allocation cost. We consider the customer's geographical attachment to the network, bandwidth demands as well as capacity constraints in the core substrate. Moreover, we present a live-migration approach for the virtual router data plane which allows network operators to quickly adapt resources to changing network demands.","PeriodicalId":127279,"journal":{"name":"2011 IEEE Nineteenth IEEE International Workshop on Quality of Service","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114867435","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

Distributed learning approach for channel selection in Cognitive Radio Networks 认知无线网络中信道选择的分布式学习方法

2011 IEEE Nineteenth IEEE International Workshop on Quality of Service Pub Date : 2011-06-06 DOI: 10.1109/IWQOS.2011.5931327

Chowdhury Sayeed Hyder, Li Xiao

引用次数: 1

Multi-tiered, burstiness-aware bandwidth estimation and scheduling for VBR video flows VBR视频流的多层、突发感知带宽估计和调度

2011 IEEE Nineteenth IEEE International Workshop on Quality of Service Pub Date : 2011-06-06 DOI: 10.1109/IWQOS.2011.5931315

R. K. Kalle, Umamaheswari Devi, S. Kalyanaraman

{"title":"Multi-tiered, burstiness-aware bandwidth estimation and scheduling for VBR video flows","authors":"R. K. Kalle, Umamaheswari Devi, S. Kalyanaraman","doi":"10.1109/IWQOS.2011.5931315","DOIUrl":"https://doi.org/10.1109/IWQOS.2011.5931315","url":null,"abstract":"The increasing demand for high-quality streaming video delivered to mobile clients necessitates efficient bandwidth utilization and allocation at not only the wireless channel but also the wired backhaul of broadband wireless networks. In this context, we propose techniques for increasing the link utilization and enhancing the quality-of-experience (QoE) for end users while multiplexing video streams over a wired link. For increasing the link utilization, we present a generic multi-tiered bandwidth estimation and scheduling scheme that can guarantee lower bounds on loss for flows at lower tiers. This scheme can be used for supporting heterogeneous loss classes, differentiated losses for different layers of video streams, or per-flow guarantees using lower aggregate bandwidth than schemes proposed in the literature. For enhancing the end-user QoE, we present a scheme for minimizing correlated losses and improving the smoothness of video quality by minimizing the maximum loss suffered by any logical unit of a stream and also the variability in loss across the length of the stream. In simulations performed using MPEG-4 sources, our loss-minimization approach could lower the maximum loss by a factor of five and the loss variance by more than an order of magnitude. Our multi-tiered scheme could lower the estimated bandwidth and improve statistical multiplexing gains by 10–20% with three classes, 5–20% with two classes, and over 30% in the context of providing deterministic per-flow guarantees.","PeriodicalId":127279,"journal":{"name":"2011 IEEE Nineteenth IEEE International Workshop on Quality of Service","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121823271","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: 3