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2015 17th Asia-Pacific Network Operations and Management Symposium (APNOMS)最新文献

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Traffic offloading under outage QoS constraint in heterogeneous cellular networks 异构蜂窝网络中断QoS约束下的业务分流
Pub Date : 2015-08-01 DOI: 10.1109/APNOMS.2015.7275382
Thant Zin Oo, Nguyen H. Tran, Tuan LeAnh, S. M. Ahsan Kazmi, T. Ho, C. Hong
Heterogeneous cellular networks offload the mobile data traffic to small cell base stations to reduce the workload on the macro base stations. Our objective is to maximize the sum rate of the down-links for the whole network under outage QoS constraint. To achieve the objective, we have to jointly solve the user association problem and resource allocation problem. We formulate the two problems into a joint optimization problem and convert it into an equivalent game theoretic formulation. We employ payoff based log linear learning and propose an algorithm that converges to one of the existing Nash equilibrium. We then provide extensive simulation results to verify the performance of our proposed algorithm.
异构蜂窝网络将移动数据流量分流到小蜂窝基站,以减少宏基站的工作负荷。我们的目标是在中断QoS约束下使整个网络的下行链路和速率最大化。为了实现这一目标,我们必须共同解决用户关联问题和资源分配问题。我们将这两个问题转化为一个联合优化问题,并将其转化为一个等价的博弈论公式。我们采用基于支付的对数线性学习,并提出了一种收敛到现有纳什均衡之一的算法。然后,我们提供了大量的仿真结果来验证我们提出的算法的性能。
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引用次数: 3
A Fog based system model for cooperative IoT node pairing using matching theory 基于匹配理论的基于雾的物联网节点协作系统模型
Pub Date : 2015-08-01 DOI: 10.1109/APNOMS.2015.7275445
S. F. Abedin, Md. Golam Rabiul Alam, Nguyen H. Tran, C. Hong
The revolutionized vision of IoT has united heterogeneous devices to foster the systems of cohesive intelligent things. In addition, Fog computing has also envisioned a new form of cloud computing paradigm. Therefore, Fog provides edge computing to such IoT devices with varied capabilities and resources. However, a balanced and efficient pairing or matching strategy for edge IoT nodes is crucial to achieve the user requisite. Hence, this paper addresses the utility based matching or pairing problem within the same domain of IoT nodes by using Irving's matching algorithm under the node specified preferences to endure a stable IoT node pairing. We studied the performance of the proposed matching algorithm through simulation. The simulation results show the higher utility gain of the node pairs through refined matching algorithm over greedy approach.
物联网的革命性愿景是将异构设备统一起来,以培育具有凝聚力的智能事物系统。此外,雾计算还设想了一种新的云计算范式。因此,Fog为具有不同功能和资源的物联网设备提供边缘计算。然而,平衡和高效的边缘物联网节点配对或匹配策略对于实现用户需求至关重要。因此,本文通过在节点指定偏好下使用Irving匹配算法来解决物联网节点在同一域内基于效用的匹配或配对问题,以实现稳定的物联网节点配对。通过仿真研究了所提出的匹配算法的性能。仿真结果表明,改进的匹配算法比贪心算法具有更高的节点对效用增益。
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引用次数: 72
Load-sharing based on relay-aided cooperative modeling in uplink two-tier cellular networks 上行两层蜂窝网络中基于中继辅助协同建模的负载共享
Pub Date : 2015-08-01 DOI: 10.1109/APNOMS.2015.7275418
Tuan LeAnh, Nguyen H. Tran, S. M. Ahsan Kazmi, Thant Zin Oo, K. Thar, T. Ho, C. Hong
In this paper, we study the relay-aided cooperative modeling that supports the load-sharing in uplink two-tier cellular networks. In our model, users in heavily loaded macrocell are shifted to lightly loaded smallcells with the assistance of relay users to mitigate Signal to Interference plus Noise Ratio (SINR) degradation problem in conventional direct handover. In order to promote relaying data of users which are selfish and rational, a trading exchange model based on Stackelberg game is proposed to optimize strategies of users. Relay users have pricing-based strategies on theirs power unit while shifted heavily loaded macrocell users have strategies to buy power levels of relay users. Optimal strategies are investigated using the backward induction analysis. Specifically, problems of NP-hard combinatorial optimization in relay user selections in the game are solved with a distributed algorithm based on matching theory. We intensively evaluate our proposed model by simulating it in Matlab which shows the efficiency of our proposal.
本文研究了支持上行两层蜂窝网络负载分担的中继辅助协同建模。在该模型中,在中继用户的帮助下,重负荷大小区的用户转移到轻负荷小小区,以缓解传统直接切换中的信噪比下降问题。为了促进自私理性的用户中继数据,提出了一种基于Stackelberg博弈的交易交换模型,对用户策略进行优化。中继用户对其功率单元采用基于定价的策略,而转移重负荷的macrocell用户则采用购买中继用户功率级别的策略。利用逆向归纳法研究了最优策略。具体来说,利用基于匹配理论的分布式算法解决了博弈中继用户选择中的NP-hard组合优化问题。我们在Matlab中对所提出的模型进行了深入的仿真,验证了所提出模型的有效性。
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引用次数: 0
IPlug and dSocket: A new network API for decoupling identifier and locator IPlug和dSocket:用于解耦标识符和定位器的新网络API
Pub Date : 2015-08-01 DOI: 10.1109/APNOMS.2015.7275366
Cinyoung Hur, Jeong-hwan Kim, Heeyoung Jung, Woojik Chun
In current Internet, network API acts as a bridge between application and network and the importance of its role is growing. However, it has inherent limitation of tight-coupling which makes almost indivisible all the network environments, such as transport controls and network-specific addresses. This coupling not only makes it difficult to change one without changing another, but also prevents both sides from evolving. This work presents a novel network API, iPlug and dSocket, which not only decouples identifier and locator, but splits application-specific functions from protocol-specific. Our design enables (1) injection of information-centered applications requirements, (2) encapsulated control of underlying network mechanisms, and (3) dynamic coupling between applications and network. The proposed API is implemented as a shared library that can be easily deployed. Our evaluations on mobility environment showed that applications have the benefits of clear abstraction and easy programmability from decoupled iPlug and dSocket API.
在当前的Internet中,网络API作为应用程序与网络之间的桥梁,其作用越来越重要。然而,它具有固有的紧耦合限制,使得所有的网络环境几乎不可分割,例如传输控制和网络特定地址。这种耦合不仅使改变一方而不改变另一方变得困难,而且还阻止了双方的发展。这项工作提出了一种新的网络API, iPlug和dSocket,它不仅解耦了标识符和定位符,而且将特定于应用程序的功能从特定于协议的功能中分离出来。我们的设计支持(1)注入以信息为中心的应用程序需求,(2)封装底层网络机制的控制,以及(3)应用程序和网络之间的动态耦合。建议的API被实现为一个可以轻松部署的共享库。我们对移动环境的评估表明,应用程序从解耦的iPlug和dSocket API中获得了清晰的抽象和易于编程的好处。
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引用次数: 1
Effective resource multiplexing for scientific workflows 科学工作流的有效资源复用
Pub Date : 2015-08-01 DOI: 10.1109/APNOMS.2015.7275432
T. Ryan, Young Choon Lee
Scientific workflows feature complex precedence constraints that are mostly dictated by data dependencies between tasks. The inter-task communication (data staging) in these complex workflow applications incurs significant overheads resulting in a major hindering factor of high performance and effective resource utilization. As the scale of these applications becomes increasingly large due primarily to the recent explosive growth of data, addressing this hindrance is of great practical importance. In this paper, we present a resource multiplexing (RM) technique, which leverages data staging aiming to minimize idle times between execution of tasks due to inter-task communication overheads. In particular, we incorporate RM into our DEWE framework 1 with making a set of extensions to the framework. The rationale behind RM is each slot or core pairs up the actual workflow task and the RM-enabled file loading DEWE extension (File Client) in the way that their resource usage is complementary. We demonstrate the efficacy of our multiplexing technique in a data-intensive computing environment using an astronomy application. Our results from experiments conducted in Amazon EC2 demonstrate that our multiplexing technique is effective with the reduction in resource idle time between jobs by 57% on average and up to 91%.
科学工作流具有复杂的优先约束,这些约束主要由任务之间的数据依赖决定。在这些复杂的工作流应用程序中,任务间通信(数据分段)会产生大量开销,从而成为高性能和有效资源利用的主要阻碍因素。由于最近数据的爆炸性增长,这些应用程序的规模变得越来越大,因此解决这一障碍具有重要的实际意义。在本文中,我们提出了一种资源复用(RM)技术,该技术利用数据分段,旨在最大限度地减少由于任务间通信开销而导致的任务执行之间的空闲时间。特别地,我们将RM合并到我们的DEWE框架1中,并对框架进行了一组扩展。RM背后的基本原理是,每个插槽或核心以资源使用互补的方式将实际的工作流任务和RM支持的文件加载DEWE扩展(文件客户端)配对。我们在一个天文学应用程序的数据密集型计算环境中演示了我们的多路复用技术的有效性。我们在Amazon EC2中进行的实验结果表明,我们的多路复用技术是有效的,可以将作业之间的资源空闲时间平均减少57%,最高可减少91%。
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引用次数: 2
Towards consistent software defined networking with logic programming 通过逻辑编程实现一致的软件定义网络
Pub Date : 2015-08-01 DOI: 10.1109/APNOMS.2015.7275411
E. Lui, Yu-Sung Wu, Patrick H. Ngai, Tung-Yueh Lin, Hong-Wei Li, Shih-Yi Huang
Software Defined Networking (SDN) allows the construction of virtual networks on top of a datacenter network infrastructure. However, the flexibility also increases the chance of inconsistencies in the network configurations caused by component failures, software bugs, or human errors. The inconsistencies may result in service outage or security policy violation. We propose a model-based verification system to check the consistency of a virtual network. The system models the requirements as logic constraints and extracts the configuration states of a virtual network. The configuration states are checked against the logic constraints by using a SMT solver[1]. The prototype system successfully detects various inconsistencies injected to the testbed and incurs reasonable amount of overheads.
软件定义网络(SDN)允许在数据中心网络基础设施之上构建虚拟网络。但是,灵活性也增加了由组件故障、软件错误或人为错误引起的网络配置不一致的可能性。不一致可能导致服务中断或违反安全策略。提出了一种基于模型的虚拟网络一致性验证系统。系统将需求建模为逻辑约束,并提取虚拟网络的配置状态。通过使用SMT求解器[1]根据逻辑约束检查配置状态。原型系统成功地检测了注入测试平台的各种不一致,并产生了合理的开销。
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引用次数: 2
Towards a detailed OpenFlow emulator 一个详细的OpenFlow仿真器
Pub Date : 2015-08-01 DOI: 10.1109/APNOMS.2015.7275414
Y. Cheng, D. Huang, Cheng-Lin Lee, Mu-Che Lee, Bo-Wei Chuang, Meng-Chen Tsai, Xin Huang, Cheng-Hsin Hsu
Software-Defined Networking (SDN) is an emerging network architecture that enables network programmability. Recent research activities on SDN make it important to develop an emulator that accurately emulates OpenFlow-enabled SDN networks. However, existing emulators and simulators focus on either data plane performance or software switches. This motivates us to develop a network emulator that provides accurate emulation on both control plane and data plane performance of an OpenFlow network and supports all types of OpenFlow switches. In this paper, we design a configurable emulator that allows users to input configurations and performance characteristics of different OpenFlow switches. Based on the performance measurement results from OpenFlow switches, we derive the configurable parameters and propose an accurate control plane performance model. Our implementation is based on a popular opensource OpenFlow emulator, Mininet with OpenvSwitch (OVS). The evaluation results show that the emulator we developed provides better performance fidelity than original Mininet/OVS.
软件定义网络(SDN)是一种新兴的网络体系结构,它使网络具有可编程性。最近关于SDN的研究活动使得开发一个能够准确模拟openflow支持的SDN网络的仿真器变得非常重要。然而,现有的仿真器和模拟器要么关注数据平面性能,要么关注软件交换。这促使我们开发一个网络仿真器,提供对OpenFlow网络的控制平面和数据平面性能的精确仿真,并支持所有类型的OpenFlow交换机。在本文中,我们设计了一个可配置仿真器,允许用户输入不同OpenFlow交换机的配置和性能特征。基于OpenFlow交换机的性能测量结果,导出了可配置参数,并提出了精确的控制平面性能模型。我们的实现是基于一个流行的开源OpenFlow模拟器,Mininet与OpenvSwitch (OVS)。仿真结果表明,所开发的仿真器比原来的Mininet/OVS具有更好的性能保真度。
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引用次数: 3
Web performance acceleration by caching rendering results 通过缓存呈现结果来加速Web性能
Pub Date : 2015-08-01 DOI: 10.1109/APNOMS.2015.7275434
Yuusuke Nakano, N. Kamiyama, K. Shiomoto, G. Hasegawa, M. Murata, H. Miyahara
Web performance, the time from clicking a link on a web page to finishing displaying the web page of the link, is becoming increasingly important. Low web performance of web pages tends to result in the loss of customers. In our research, we measured the time for downloading files on popular web pages by running web browsers on four hosts worldwide using PlanetLab and detected the longest portion in download time. We found the longest portion in download time to be Blocked time, which is the waiting time for the start of downloading in web browsers. In this paper, we propose a method for accelerating web performance by reducing such Blocked time with a cache of rendering results. The proposed method uses an in-network rendering function which renders web pages instead of web browsers. The in-network rendering function also stores the rendering results in its cache and reuses them for other web browsers to reduce the Blocked time. To evaluate the proposed method, we calculated the web performance of web pages whose render results are cached by analyzing the measured download time of actual web pages. We found that the proposed method accelerates web performance of long round trip time (RTT) web pages or long RTT clients if the web pages' dynamic file percentages are within 80%.
Web性能,即从点击一个网页上的链接到完成显示该链接的网页的时间,正变得越来越重要。网页的网页性能低容易导致客户流失。在我们的研究中,我们使用PlanetLab在全球四台主机上运行网络浏览器,测量了在流行网页上下载文件的时间,并检测了下载时间最长的部分。我们发现下载时间中最长的部分是Blocked time,即在web浏览器中等待开始下载的时间。在本文中,我们提出了一种通过缓存渲染结果来减少这种阻塞时间来加速web性能的方法。提出的方法使用网络内渲染函数来渲染网页,而不是web浏览器。网络内渲染功能还将渲染结果存储在其缓存中,并将其重用给其他web浏览器以减少阻塞时间。为了评估所提出的方法,我们通过分析实际网页的测量下载时间来计算渲染结果被缓存的网页的web性能。我们发现,当网页的动态文件百分比在80%以内时,所提出的方法可以加速长往返时间(RTT)网页或长RTT客户端的web性能。
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引用次数: 4
Cooperative content delivery for cost minimization in wireless networks 无线网络中成本最小化的协同内容交付
Pub Date : 2015-08-01 DOI: 10.1109/APNOMS.2015.7275393
Yeonghun Nam, Jong‐Moon Chung
In this paper, cooperative caching based content delivery management is analyzed in wireless networks. The wireless network consists of mobile devices which can download mobile contents (e.g., e-book, multimedia data, Apps etc.) and share these contents with other devices. Each device can download contents from the content provider (CP) via cellular network by paying network infrastructure cost, or receive support from another device via complementary WLAN or WPAN. In this paper, a cluster-based cooperative content delivery structure in wireless networks is proposed, and the cooperative caching scheme is analyzed to reduce the content delivery cost of each wireless devices.
本文分析了无线网络中基于协作缓存的内容分发管理。无线网络由移动设备组成,这些设备可以下载移动内容(如电子书、多媒体数据、应用程序等)并与其他设备共享这些内容。每个设备可以通过蜂窝网络支付网络基础设施费用从内容提供商(CP)下载内容,也可以通过互补的WLAN或WPAN从另一个设备获得支持。提出了一种基于集群的无线网络协同内容分发结构,并对协同缓存方案进行了分析,以降低各无线设备的内容分发成本。
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引用次数: 2
Integrating machine-to-machine measurement framework into oneM2M architecture 将机器对机器测量框架集成到oneM2M架构中
Pub Date : 2015-08-01 DOI: 10.1109/APNOMS.2015.7275364
A. Gyrard, S. K. Datta, C. Bonnet, K. Boudaoud
Recent challenges in Internet of Things (IoT) include - (i) providing interoperability among IoT data, (ii) interpreting data generated by IoT devices, and (iii) assisting developers in accomplishing these tasks. Current standard development organizations such as oneM2M are designing semantic-based IoT architecture to address such challenges. However, the recent release of oneM2M standards does not provide any concrete tool for the semantic treatment of the IoT data. Previously, we proposed the Machine-to-Machine Measurement (M3) Framework which mitigates the challenges and assist developers in building semantic based IoT applications easily. Considering the usefulness and novel aspects of the M3 framework, the paper proposes to integrate it seamlessly into oneM2M architecture. The semantic requirements from oneM2M are pointed out and the M3 components addressing them are identified. A common service function (CSF) dedicated to semantic engine is introduced to the oneM2M architecture which extends the capabilities of common services entity (CSE) in terms of semantic treatment of IoT data. The new CSF also includes a catalog of semantic based IoT templates which are exploited by Application Entities to easily utilize the semantic engine. Two deployment scenarios of the upgraded oneM2M architecture have been discussed. Finally these extensions have been communicated to the oneM2M Management, Abstraction and Semantics (MAS) Group (Working Group 5).
物联网(IoT)最近面临的挑战包括(i)提供物联网数据之间的互操作性,(ii)解释物联网设备生成的数据,以及(iii)协助开发人员完成这些任务。目前的标准开发组织,如oneM2M,正在设计基于语义的物联网架构来应对这些挑战。然而,最近发布的oneM2M标准并没有为物联网数据的语义处理提供任何具体的工具。之前,我们提出了机器对机器测量(M3)框架,该框架减轻了挑战,并帮助开发人员轻松构建基于语义的物联网应用程序。考虑到M3框架的实用性和新颖性,本文建议将其无缝集成到oneM2M架构中。指出了oneM2M的语义需求,并确定了满足这些需求的M3组件。在oneM2M架构中引入了语义引擎专用的公共服务功能(common service function, CSF),扩展了公共服务实体(common services entity, CSE)在物联网数据语义处理方面的能力。新的CSF还包括一个基于语义的物联网模板目录,应用实体可以利用这些模板轻松利用语义引擎。讨论了oneM2M架构升级后的两种部署场景。最后,这些扩展已经传达给oneM2M管理、抽象和语义(MAS)组(工作组5)。
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引用次数: 10
期刊
2015 17th Asia-Pacific Network Operations and Management Symposium (APNOMS)
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