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18th international conference on parallel and distributed computing, Applications and Technologies, PDCAT 2017

作者： Chang, Hong Ma, Shang-Chih Lee, Chang-Hong Dept. of Electrical Engineering National Taipei University of Technology Taipei Taiwan

ISBN: (纸本)9781538631515

Using the multilevel concatenation, long block codes can be constructed from shorter component codes, resulting in much less decoding complexity. the component codes can also be constructed from multilevel concatenation so that a hierarchical multilevel concatenated structure is built. the decoding complexity of the hierarchical scheme can be further decreased. © 2017 IEEE.

关键词： Concatenated codes

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distributed Game-theoretical Task Offloading for Mobile Edge computing 18

Distributed Game-Theoretical Task Offloading for Mobile Edge...

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18th IEEE international conference on Mobile Ad hoc and Smart systems (IEEE MASS)

作者： Wang, En Dong, Pengmin Xu, Yuanbo Li, Dawei Wang, Liang Yang, Yongjian Jilin Univ Changchun Peoples R China Montclair State Univ Montclair NJ USA Northwestern Polytech Univ Xian Peoples R China

ISBN: (纸本)9781665449359

Mobile Edge computing (MEC) has been envisioned as a promising distributed computing paradigm, where mobile users offload their tasks to edge nodes to decrease the cost of energy and computation. However, most existing works only consider the congestion of wireless channels as the crucial factor influencing the strategy-making process, and ignore the impact of the offloading among edge nodes. In addition, centralized task offloading strategies result in heavy computation complexity in center nodes. Along this line, we take both the congestion of wireless channels and the offloading among multiple edge nodes into consideration to enrich users' offloading strategies. To this end, we first formulate the offloading problem as a multi-user potential game, and then propose a distributed task offloading algorithm to reach an equilibrium state which can also protect individual privacy. Specifically, in the above task offloading algorithm, we propose two subalgorithms to select users for updating strategies: parallel User Selection Algorithm (PUS) and Single User Selection Algorithm (SUS) in order to substantially accelerate the convergence. Extensive experiments on three real-world data sets validate that the proposed algorithm achieves a Nash equilibrium and effectively decreases the total user cost which is acceptable compared to the optimal solution.

关键词： Mobile Edge computing computation offloading potential game Nash equilibrium

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A computer network based control architecture for autonomous distributed multirobot systems

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COMPUTERS & INDUSTRIAL ENGINEERING 1996年第3-4期31卷 697-702页

作者： Yasuda, G Tachibana, K HIROSHIMA CITY UNIV HIROSHIMA 73131JAPAN

this paper presents the specification and implementation procedure using a microcomputer network based autonomous distributed control architecture for industrial multirobot systems. the procedure is based on the concept of data flow network controlled by communicating sequential processes to perform coordinated tasks. Robots and other computerized industrial devices such as conveyors and manufacturing machines are defined as object-oriented Petri nets. A modular and hierarchical approach is adopted to define a set of Petri net type diagrams which represent concurrent activities of control processes for such devices. Asynchronous and synchronous interactions are modelled by places and transitions, respectively, in global process interaction nets. the control software is implemented on a computer network using Inmos transputers with true parallel processing and message passing primitives efficiently handled in hardware. Petri net based models are directly and efficiently transformed to corresponding codes in occam, the high level parallel. programming language defined for the transputer.

关键词： industrial multirobot systems autonomous distributed control object-oriented Petri nets parallel processing transputer network

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A collusion-resistant approach to distributed privacy-preserving data mining

A collusion-resistant approach to distributed privacy-preser...

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Proceedings of the 16th iasted international conference on parallel and distributed computing and systems

作者： Urabe, Shintaro Wang, Jiahong Takata, Toyoo Fac. of Software and Info. Science Iwate Prefectural University 152-52 Sugo Takizawa Iwate 020-0193 Japan

It is often required to conduct data mining among several sites to discover valuable patterns, associations, trends, and dependencies in the shared data. the privacy, however, is a concern. In many situations users do require that data mining is conducted with no privacy of any site being leaked out to any other sites. In this paper a distributed privacy-preserving data mining algorithm is proposed, which is characterized with its ability to resist the collusion, and especially, a system with more sites tends to have the ability to resist more collusion. Performance analysis results are provided for demonstrating the effectiveness of the proposed algorithm.

关键词： Data mining

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Optimizing distributed storage layouts in the network storage manager

Optimizing distributed storage layouts in the network storag...

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Proceedings of the 16th iasted international conference on parallel and distributed computing and systems

作者： Ali, Zeyad Zhang, Rui Malluhi, Qutaibah Yang, Shaofeng Computer Science Department Jackson State University 1400 JR Lynch Street Jackson MS 39217 Data Reliability Inc. 2021 The Alameda San Jose CA 95126

distributed storage systems are increasing being used by data-intensive applications for efficient and reliable data delivery. the Network Storage Manager (NSM) is a distributed storage framework with a unique architecture that maximizes applications control over many of the storage and retrieval policies. Several applications are utilizing NSM for efficient, tunable, and controllable performance. Data layout is one policy that is considered to be application-dependant and tailored algorithms are preferred for application with complex or irregular access patters. Experimental results have shown dramatic performance enhancement when optimized layout policies override the default NSM implementation. Layout algorithms are more effective when proper prefetching and cache replacement policies are implemented.

关键词： Data storage equipment

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Interactive distributed components for rich-client internet applications

Interactive distributed components for rich-client internet ...

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Proceedings of the 16th iasted international conference on parallel and distributed computing and systems

作者： Lin, Jianhua Department of Computer Science Eastern Connecticut State University Willimantic CT 06226 United States

the Web has proved to be very efficient and effective in delivering business data to users everywhere. Using the Web to deliver business applications has been more challenging due to the limitations of connection performance and client interface capabilities. We present a new distributed architecture for developing network enterprise applications with highly interactive rich client interfaces that can be deployed effectively on the Internet. the components are executed on the server side, eliminates the need and delay for transporting application code over the network as well as the serious security issues associated with executing downloaded programs on client machines. the new architecture also provides an ideal solution for enabling convenient remote access to network-enabled devices from anywhere.

关键词： Internet

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distributed access framework for embedded device community

Distributed access framework for embedded device community

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iasted international conference on parallel and distributed computing and Networks, as part of the 23rd iasted international Multi-conference on Applied Informatics

作者： Yang, Yanwu Larsson, Tony CC-Lab. IDE Department Halmstad University PO Box 823 SE-301 18 Halmstad Sweden

this paper identifies the need for multiple clients to concurrently access a device community. A set of embedded devices cooperate via one or more service discovery protocols, such as UPnP, Jini, HAVi or OSGi. We present an approach that encapsulates additional services into a distributed Access Framework (DAF). the services in DAF are responsible for secure and coordinated access of the distributed devices in the community. the different services of DAF can optionally be implemented and executed on different devices. We specify the DAF and demonstrate an implementation where the devices are organized according to the OSGi specification.

关键词： distributed computer systems

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Effectiveness of grid configurations on application performance

Effectiveness of grid configurations on application performa...

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Proceedings of the 16th iasted international conference on parallel and distributed computing and systems

作者： Xia, Edward Jurisica, Igor Department of Computer Science University of Toronto Toronto Ont. M5S 3H5 Canada

In the grid environment, applications make use of shared grid resources to improve performance. the target function usually depends on many parameters, e.g., the scheduling strategies, the configurations of machines and links, the workloads in a grid, the degree of data replication, etc. In this paper, we examine how those parameters may affect performance. We choose an application's overall response time as an object function and focus on dynamically scheduling independent tasks. We define the job, scheduler and cost models and conduct experiments using simulations. Understanding influence of each parameter is not only crucial for an application to achieve good performance, but may also help to develop effective scheduling heuristics and design high quality grids.

关键词： distributed computer systems

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A totally distributed iterative scheme for web services addressing and discovery

A totally distributed iterative scheme for web services addr...

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19th iasted international conference on parallel and distributed computing and systems

作者： Milanesio, M. Ruffo, G. Schifanella, R. Department of Computer Science University of Turin Torino Italy

ISBN: (纸本)9780889867048

Both web services framework and peer-to-peer networks provide a discovery process, but as current P2P systems focus more on the discovery of content in the form of common files (possibly associated with metadata), a centralized UDDI registry serves content in the form of metadata describing web services. thus, the intersection between P2P and Web services is clear, so that it recently gained lots of interest: there is the need of finding a way to exploit the high potential of web services without paying in terms of scalability or single-point-of-failures. Our aim in this paper is two-fold: on the one hand, we want to present a high level protocol for the addressing and the discovery of web services that is totally decentralized and based on a structured P2P topology. On the other hand, we introduce a way to solve the exact match key-based routing problem, that afflicts structured P2P systems. this model guarantees that all addressed web services will be discovered in a logarithmic number of hops, as it is based on a distributed Hash Table. One of the key innovation is the possibility of customizing the categorization of web services using tags, which are becoming very common in the so called Web 2.0.

关键词： distributed computer systems

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Transactional data sharing in grids

Transactional data sharing in grids

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20th iasted international conference on parallel and distributed computing and systems, PDCS 2008

作者： Müller, Marc-Florian Möller, Kim-thomas Sonnenfroh, Michael Schöttner, Michael Institut für Informatik Heinrich-Heine-Universität Düsseldorf 40225 Düsseldorf Germany

ISBN: (纸本)9780889867741

the EU-funded XtreemOS project implements a Linux-based grid operating system (OS), exploiting resources of virtual organizations through the standard POSIX interface. the Object Sharing Service (OSS) of XtreemOS addresses the challenges of transparent data sharing for distributed applications running in grids. We focus on the problem of handling consistency of replicated data in wide area networks in the presence of failures. the software architecture we propose interweaves concepts from transactional memory and peer-to-peer systems. Speculative transactions relieve programmers from complicated lock management. Super-peer-based overlay networks improve scalability and distributed hash tables speed up data search. OSS replicates objects to improve reliability and performance. In case of severe faults, the XtreemOS grid checkpointing service will support OSS. In this paper we describe the software architecture of OSS, design decisions, and evaluation results of preliminary experiments with a multi-user 3D virtual world.

关键词： distributed computer systems

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