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2nd international conference on networks Security, Wireless Communications and Trusted computing, NSWCTC 2010

作者： Zhang, Mei-Yan Cai, Wen-Yu Zhejiang Water Conservancy and Hydropower College Hangzhou 310027 China Hangzhou Dianzi University Hangzhou 310018 China

ISBN: (纸本)9780769540115

distributed Source Coding (DSC) is one of the most promising collaborative information processing technologies for Wireless Video Sensor networks (WVSN) because its low complexity video encoder is suitable for resource limited sensor nodes. Generic sensor nodes with limited energy are restricted with computation and communication capabilities, therefore, traditional video coding such as MPEG-4 or H.264 is too complicated for sensor nodes. In this paper, the concept and the predominant methods of distributed source coding are introduced briefly. Moreover, how to apply distributed source coding appropriately in multi-source multi-camera wireless video sensor network is investigated. Traditional distributed source coding technology is asymmetric but sensor nodes in WVSN are homogenous, therefore, symmetric distributed source coding appropriate for multi-camera wireless video sensor networks is discussed. Moreover, multi-source symmetric distributed source coding is investigated because there are a mass of sensor nodes in the WVSN. As we known, it is the first exploration about multisource distributed source coding technology. © 2010 IEEE.

关键词： Sensor nodes

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Optimally organizing distributed-component computing in the clouds: From both the user perspective and resource view

Optimally organizing distributed-component computing in the ...

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2010 international conference on Electronics and Information Engineering, ICEIE 2010

作者： Lu, Ji Zhang, Yaoxue Zhou, Yuezhi Key Laboratory of Pervasive Computing Ministry of Education Tsinghua University Beijing China

ISBN: (纸本)9781424476800

With the sharp increase of computing demands, computations more and more rely on the distributed components. However, the relatively inferior quality of wid-area networks hampers such trend. This paper proposes an approach aiming at optimally organizing the distributed-component computing in the current Internet in which some nodes with large computational freedom and capability for the public to compute are emerging, such as the initially born data centers in the present Cloud computing environments. Both the user experience and the resource utilization are taken into the quantitative analysis and optimization. Facing the exponential growth of the problem's solution space, this paper develops an effective approach. Experimental simulations show that the approach generates the result significantly approximating the optimal solution, in the meantime with high efficiency. © 2010 IEEE.

关键词： Internet cloud computing environments optimally organizing distributed component computing optimisation resource view user perspective wide-area networks

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Use of peer-to-peer technology in internet access networks and its impacts (IPDPS 2010 PhD forum)

Use of peer-to-peer technology in internet access networks a...

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2010 IEEE international Symposium on parallel and distributed Processing, Workshops and Phd Forum, IPDPSW 2010

作者： Danielis, Peter Timmermann, Dirk Institute of Applied Microelectronics and Computer Engineering University of Rostock 18051 Rostock Germany

ISBN: (纸本)9781424465347

Objectives of the dissertation are impacts of Peer-to-Peer (P2P) traffic on Internet core networks as well as novel approaches for using P2P technology in Internet access networks. Thereby, challenges of P2P computing concerning topology awareness, scalability, and fault-tolerance are analyzed. The thesis' first part focuses on improving insufficient scalability and fault-tolerance properties of present-day Internet services like the Domain Name System (DNS) by using available resources in access networks. The second part addresses P2P mechanisms for a highly scalable, resilient, and distributed storing and computing solution in the access network. Finally, a new algorithm for allowing topology awareness in P2P networks is proposed. For evaluation, a prototype for a P2P-based DNS has been developed and another prototype for a P2P-based store and compute platform is currently set up. Currently, the author is in his fourth PhD year and will finish in 2010. Further information, full references, and papers can be obtained from the websites given below the affiliation. © 2010 IEEE.

关键词： Scalability

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SemanticCast: Content-based data distribution over self-organizing semantic overlay networks

SemanticCast: Content-based data distribution over self-orga...

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11th international conference on parallel and distributed computing, Applications and Technologies, PDCAT 2010

作者： Zheng, Zhong Wang, Yijie National Key Laboratory for Parallel and Distributed Processing School of Computer National University of Defense Technology Changsha China

ISBN: (纸本)9780769542874

Many applications demand distributing data with different contents efficiently in the network environment with unreliable links and a high node churn. Existing approaches mostly focus on optimizing either efficiency or robustness of data distribution, and fail to ensure both of them simultaneously. In this paper, we propose SemanticCast - a content-based data distribution approach over self-organizing semantic overlay networks. SemanticCast maintains a self-organizing semantic overlay based on view exchange (called Crowd). In Crowd, each node seeks neighbors with more similar interests by periodically exchanging its neighbor list (called view) with a chosen neighbor. Through these nodes' self-organizing behavior, various interest communities emerge in the overlay. For data distribution over Crowd, SemanticCast adopts random walk to route data between interest communities, and adopts flooding to disseminate data inside the interested communities. The experimental results show that compared to existing approaches, SemanticCast can support efficient content-based data distribution in the unreliable and highly dynamic network environment. © 2010 IEEE.

关键词： Semantics

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A control method of system self-management for distributed systems

A control method of system self-management for distributed s...

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2nd international conference on networks Security, Wireless Communications and Trusted computing, NSWCTC 2010

作者： Zheng, Zhiping School of Education Science Guizhou Normal University Guiyang China

ISBN: (纸本)9780769540115

In this paper, a control method for making automated distributed management decisions is studied. And the consequences of externalized management on services and the system architecture is studied also. A simulation is performed to evaluate the suggested control method. The simulation results show that the automated manager needs 1) a system view classifying the current system state based on local knowledge, 2) a learner providing an optimal decision policy, and 3) an adaptive service architecture with abilities to compensate disturbance. © 2010 IEEE.

关键词： Computer architecture

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distributed Growing Radial Basis Function Neural networks for Location Estimation in Indoor Wireless networks

Distributed Growing Radial Basis Function Neural Networks fo...

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6th international conference on Wireless Communications, Networking and Mobile computing (WICOM)

作者： Jain, Vinod Kumar Tapaswi, Shashikala Shukla, Anupam Atal Bihari Vajpayee Indian Inst Informat Technol Dept Informat Technol Gwalior MP India

ISBN: (纸本)9781424437092

Location aware computing is popularized and use of location information has become important due to huge application of mobile computing devices and local area wireless networks. To serve us well, mobile computing applications need to know the physical location of things so that they can record them and report them to us. Therefore in the future ubiquitous services, location estimation will be a key technology. This paper present distributed growing radial basis function neural networks (DGRBFNN) for location estimation of mobile device in wireless networks. DGRBFNN partitions the location space into clusters on the basis of availability of signals from various access points, and employ separate neural network architecture for each cluster to estimate the location of mobile device in indoor wireless networks. It provides better location estimation results than other approaches and systematically caters for unavailable signals at estimation time.

关键词： Location aware services user location and tracking location estimation wireless LANs Radial Basis Function Neural Network (RBFNN) Growing Radial Basis Function Neural Network (GRBFNN)

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Selective recovery from failures in a task parallel programming model 10

Selective recovery from failures in a task parallel programm...

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10th IEEE/ACM international Symposium on Cluster, Cloud, and Grid computing, CCGrid 2010

作者： Dinan, James Singri, Arjun Sadayappan, P. Krishnamoorthy, Sriram Dept. Computer Science and Engineering Ohio State University United States Pacific Northwest National Laboratory Comp. Sciences and Mathematics Division United States

ISBN: (纸本)9781424469871

We present a fault tolerant task pool execution environment that is capable of performing fine-grain selective restart using a lightweight, distributed task completion tracking mechanism. Compared with conventional checkpoint/restart techniques, this system offers a recovery penalty that is proportional to the degree of failure rather than the system size. We evaluate this system using the Self Consistent Field (SCF) kernel which forms an important component in ab initio methods for computational chemistry. Experimental results indicate that fault tolerant task pools are robust in the presence of an arbitrary number of failures and that they offer low overhead in the absence of faults. © 2010 IEEE.

关键词： Fault tolerance

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PAPC: A simple distributed parallel computing framework for mass legacy code tasks

PAPC: A simple distributed parallel computing framework for ...

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international conference on Grid and Cloud computing

作者： Wu, Xiaofeng Jiang, Jinlei Yang, Jinzhe Department of Computer Science and Technology Tsinghua National Laboratory for Information Science and Technology Tsinghua University Beijing 100084 China

ISBN: (纸本)9780769543130

With the fast development of multi-core technology, future high performance computing system will be a system of many multi-core processors where parallel computing is a must. However, it is not an easy task in such an environment to run legacy code programs that are developed for machines of single-core processors to achieve the desired speedup. To deal with the problem, in this paper we put forward a parallel computing framework named PAPC on the basis of ProActive, an open source middleware that aims to ease the development of parallel and distributed applications and that has excellent support for high performance computing. We explain in detail the design and implementation of the PAPC and conduct some experiments to evaluate it. Experimental results show that the framework PAPC is of strong scalability, good adaptability and can make full use of the high performance of multi-core. © 2010 IEEE.

关键词： parallel processing systems

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A fast seismic data processing approach based on parallel wavelet transform

A fast seismic data processing approach based on parallel wa...

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IEEE international conference on Progress in Informatics and computing (PIC)

作者： Zhang, Xiaolai Lu, Yongquan Li, Jinsong Wang, Jintao High Performance Computing Center Communication University of China Beijing 100024 China Information Engineering School Communication University of China Beijing 100024 China

ISBN: (纸本)9781424467860

A new implementation of seismic data processing approach based on parallel wavelet transform is presented in this paper. Firstly, the feasibility and necessity of the parallel processing method for seismic data are elaborated from three primary aspects. Based on the analysis, the parallel wavelet transform is implemented by using MATLAB on a distributed cluster. Finally, both sequential and parallel implements are employed to test and compare the performance of our implementation. A series of experiments have demonstrated that parallel wavelet transform can significantly reduce the running time and improve the speedup greatly. ©2010 IEEE.

关键词： Wavelet transforms

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Communicating While computing [distributed mobile cloud computing over 5G heterogeneous networks]

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IEEE SIGNAL PROCESSING MAGAZINE 2014年第6期31卷 45-55页

作者： Barbarossa, Sergio Sardellitti, Stefania Di Lorenzo, Paolo Univ Roma La Sapienza Rome Italy IEEE New York NY USA

Current estimates of mobile data traffic in the years to come foresee a 1,000 increase of mobile data traffic in 2020 with respect to 2010, or, equivalently, a doubling of mobile data traffic every year. This unprecedented growth demands a significant increase of wireless network capacity. Even if the current evolution of fourth-generation (4G) systems and, in particular, the advancements of the long-term evolution (LTE) standardization process foresees a significant capacity improvement with respect to third-generation (3G) systems, the European Telecommunications Standards Institute (ETSI) has established a roadmap toward the fifth-generation (5G) system, with the aim of deploying a commercial system by the year 2020 [1]. The European Project named ?Mobile and Wireless Communications Enablers for the 2020 Information Society? (METIS), launched in 2012, represents one of the first international and large-scale research projects on fifth generation (5G) [2]. In parallel with this unparalleled growth of data traffic, our everyday life experience shows an increasing habit to run a plethora of applications specifically devised for mobile devices, (smartphones, tablets, laptops)for entertainment, health care, business, social networking, traveling, news, etc. However, the spectacular growth in wireless traffic generated by this lifestyle is not matched with a parallel improvement on mobile handsets? batteries, whose lifetime is not improving at the same pace [3]. This determines a widening gap between the energy required to run sophisticated applications and the energy available on the mobile handset. A possible way to overcome this obstacle is to enable the mobile devices, whenever possible and convenient, to offload their most energy-consuming tasks to nearby fixed servers. This strategy has been studied for a long time and is reported in the literature under different names, such as cyberforaging [4] or computation offloading [5], [6]. In recent years, a strong impul

关键词： Mobile communication Mobile handsets Energy consumption Base stations 5G mobile communication Wireless communication Next generation networking Telecommunication traffic Cellular networks Wireless cellular networks

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