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检索条件"任意字段=2010 International Conference on Parallel and Distributed Computing and Networks, PDCN 2010"

共 2369 条记录，以下是251-260 订阅

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On the Use of Unified And-Or Fuzzy Operator for distributed Node Exhaustion Attack Decision-making in Wireless Sensor networks

On the Use of Unified And-Or Fuzzy Operator for Distributed ...

引用

2010 IEEE World Congress on Computational Intelligence

作者： Khan, Salman A. Baig, Zubair A. King Fahd Univ Petr & Minerals Dept Comp Engn Dhahran 31261 Saudi Arabia

ISBN: (纸本)9781424469208

The effect of advances in the fields of ubiquitous computing, wireless communications and embedded system design has seen a corresponding rapid improvement of wireless sensor technology. Sensor networks have emerged as a platform for deployment and sustenance of critical applications that require real-time sensing and data acquisition for decision-making purposes. A significant number of malicious attacks against the security of such networks have been identified in recent times. Considering the untrusted environments of operations of such networks, the threat of distributed attacks against constrained sensory resources i.e. sensor power, computation and communication capabilities cannot be overlooked. In this paper, we propose a fuzzy logic-based approach towards achieving demarkation in the values of specific parameters of an attack detection scheme for detecting distributed node-exhaustion attacks in wireless sensor networks. Using the Unified And-Or (UAO) aggregation operator, we model and formulate a mechanism to achieve a tradeoff between frequent attack detection and sensor node energy utilization. Simulation results prove the effectiveness of our approach in addressing the issue of computing the optimal parameter values for achieving a reasonable tradeoff between attack detection rate and sensor node energy utilization rate.

关键词： attack detection rate communication capability data acquisition data acquisition decision making distributed attack threat distributed node exhaustion attack decision making embedded system fuzzy logic fuzzy logic-based approach optimal parameter values real-time sensing security of data sensor node energy utilization ubiquitous computing unified and-or fuzzy operator wireless communications wireless sensor network wireless sensor networks

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distributed Systems and Algorithms

Distributed Systems and Algorithms

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16th international Euro-Par conference on parallel Processing

作者： Felber, Pascal Jimenez-Peris, Ricardo Schmid, Giovanni Sens, Pierre Univ Neuchatel CH-2000 Neuchatel Switzerland

ISBN: (纸本)9783642152764

parallel computing is increasingly exposed to the development and challenges of distributed systems, such as asynchrony, long latencies, network partitions, failures, disconnected operations, heterogeneity and protocol standardization. Furthermore, distributed systems are becoming larger, more diverse and more dynamic (changing topology, highly dynamic number of participants). This Euro- Par topic provides a forum for research and practice about new advances in distributed computing and distributed algorithms. Submissions were encouraged across the whole area with emphasis on design and practice of distributed algorithms, scalability, concurrency, performance evaluations, and self-organized distributed systems. © 2010 Springer-Verlag.

关键词： distributed computer systems

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A realistic model for runtime incremental task scheduling in distributed memory multiprocessor systems

A realistic model for runtime incremental task scheduling in...

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2010 1st international conference on parallel, distributed and Grid computing, PDGC - 2010

作者： Mallick, Subhasis Sinha, Amitabha B.P. Poddar Institute of Management and Technology India West Bengal University of Technology India

ISBN: (纸本)9781424476725

Even though the area of parallel computing has existed for many decades, programming a parallel system for the execution of a single application is still a challenging problem than programming a sequential program on single processor. In this paper we investigate a partitioning and scheduling strategy for splitting a non-uniform parallel program into smaller tasks and map them into different processors at runtime. We propose a parallel program model which use explicit parallelism to identify independent section and a dynamic scheduling technique to schedule those independent sections (tasks) using message passing to different processors. Finally we show the accuracy of the scheduling by balance the loads in different processors and reduce the communication cost. © 2010 IEEE.

关键词： parallel programming

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Spatial Correlation in Wireless Sensor networks

Spatial Correlation in Wireless Sensor Networks

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

作者： Xu, Xin Wang, Wei C4ISR Key Lab No. 28 Research Institute CETC China ZTE Corporation China

ISBN: (纸本)9781424437092

This paper studies the spatial correlation in the sensing data gathered by densely deployed sensors. We first show that the joint entropy of a cluster of sensor nodes can be calculated through the covariance matrix of their readings when they are gaussian distributed. Then, two kinds of correlation patterns in the physical world are studied, and we show these two patterns have fundamental different impacts on joint entropy.

关键词： Gaussian distributed correlation methods covariance matrices covariance matrix densely deployed sensors joint entropy sensing data spatial correlation wireless sensor networks wireless sensor networks

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A robust and fault-tolerant distributed intrusion detection system

A robust and fault-tolerant distributed intrusion detection ...

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international conference on parallel distributed and Grid computing

作者： Sen, Jaydip Innovation Lab. Tata Consultancy Services Ltd. Kolkata India

ISBN: (纸本)9781424476725

Since it is impossible to predict and identify all the vulnerabilities of a network, and penetration into a system by malicious intruders cannot always be prevented, intrusion detection systems (IDSs) are essential entities for ensuring the security of a networked system. To be effective in carrying out their functions, the IDSs need to be accurate, adaptive, and extensible. Given these stringent requirements and the high level of vulnerabilities of the current days' networks, the design of an IDS has become a very challenging task. Although, an extensive research has been done on intrusion detection in a distributed environment, distributed IDSs suffer from a number of drawbacks e.g., high rates of false positives, low detection efficiency etc. In this paper, the design of a distributed IDS is proposed that consists of a group of autonomous and cooperating agents. In addition to its ability to detect attacks, the system is capable of identifying and isolating compromised nodes in the network thereby introducing fault-tolerance in its operations. The experiments conducted on the system have shown that it has high detection efficiency and low false positives compared to some of the currently existing systems. © 2010 IEEE.

关键词： Intrusion detection

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Multi-Dimensional Conflict Graph Based computing for Optimal Capacity in MR-MC Wireless networks

Multi-Dimensional Conflict Graph Based Computing for Optimal...

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international conference on distributed computing Systems (ICDCS 2010)

作者： Li, Hongkun Cheng, Yu Zhou, Chi Wan, Pengjun IIT Dept Elect & Comp Engn Chicago IL 60616 USA IIT Dept Comp Sci Chicago IL 60616 USA

ISBN: (纸本)9780769540597

Optimal capacity analysis in multi-radio multi-channel wireless networks by nature incurs the formulation of a mixed integer programming, which is NP-hard in general. The current state of the art mainly resorts to heuristic algorithms to obtain an approximate solution. In this paper, we propose a novel concept of multi-dimensional conflict graph (MDCG). Based on MDCG, the capacity optimization issue can be accurately modeled as a linear programming (LP) multi-commodity flow (MCF) problem, augmented with maximal independent set (MIS) constraints. The MDCG-based solution will provide not only the maximum throughput or utility, but also the optimal configurations on routing, channel assignment, and scheduling. Moreover, the MDCG-based optimal capacity planning can exploit dynamic channel swapping, which is difficult to achieve for those existing heuristic algorithms. A particular challenge associated with the MDCG-based capacity analysis is to search exponentially many possible MISs. We theoretically show that in fact only a small set of critical MISs, termed as critical MIS set, will be scheduled in the optimal resource allocation. We then develop a polynomial computing method, based on a novel scheduling index ordering (SIO) concept, to search the critical MIS set. Extensive numerical results are presented to demonstrate the efficiency of the MDCG-based resource allocation compared to well-known heuristic algorithm presented in [1], and the efficiency of SIO-based MIS computing compared to the widely adopted random algorithm for searching MISs.

关键词： Heuristic algorithms

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Multi-source distributed video coding in wireless video sensor networks for water conservancy engineering

Multi-source distributed video coding in wireless video sens...

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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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Remote visual analysis of numerical simulations on distributed-memory parallel environment

Remote visual analysis of numerical simulations on distribut...

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2010 international conference on Audio, Language and Image Processing, ICALIP 2010

作者： Cao, Yi Wang, Huawei Wu, Jiming High Performance Computing Center Institute of Applied Physics and Computational Mathematics Beijing 100094 China

ISBN: (纸本)9781424458653

The distributed-memory parallel computer has become the most popular platform for the parallel acceleration of numerical simulations in scientific computing area. However, complex system characteristics and large-scale time-varying data produced on such environment present tremendous challenges for convenient data analyzing. A visualization system framework is introduced in this paper, which can be easily used to visual analyze the remote simulations. It utilizes a hybrid computational coupling strategy adapting to the parallel computing environment flexibly without disturbing the simulation code structures. Experimental results show the proposed framework can provide good interactivity during steering remote parallel simulations. ©2010 IEEE.

关键词： Numerical models

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M&M: A multi-channel MAC protocol with multiple channel reservation for wireless sensor networks

M&M: A multi-channel MAC protocol with multiple channel rese...

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international conference on Cyber-Enabled distributed computing and Knowledge Discovery

作者： Li, Jinbao Zhang, Desheng School of Computer Science and Technology Heilongjiang University Harbin Heilongjiang 150080 China Key Laboratory of Database and Parallel Computing of Heilongjiang Province Harbin Heilongjiang 150080 China

ISBN: (纸本)9780769542355

In this paper, a multi-channel MAC protocol, called M&M, with multiple channel reservation is proposed to tackle the channel conflict problem. M&M is fully distributed with no requirements of time synchronization or multi-radio, so it is very practical to implement M&M in resource-constrained sensor nodes. M&M can make nodes to choose one actually idle channel for communications from all assumed idle channels. Therefore, M&M can greatly alleviate, if not completely eliminate, packet collisions resulted by the channel conflict, and thus conserve more energy to prolong the lifetime of WSNs. To investigate the values of multiple channel reservation, extensive simulation and real testbed experiments are conducted. The results show that when the number of channels becomes larger or loads are heavy, M&M improves energy efficiency and throughput significantly. © 2010 IEEE.

关键词： Sensor nodes

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Applying P2P strategies to scheduling in decentralized Grid computing infrastructures

Applying P2P strategies to scheduling in decentralized Grid ...

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international Workshop on Scheduling and Resource Management for parallel and distributed Systems

作者： Grimme, Christian Lepping, Joachim Picon, Jonathan Moreno Papaspyrou, Alexander Robotics Research Institute Section Information Technology TU Dortmund University Otto-Hahn-Strasse 8 44227 Dortmund Germany

ISBN: (纸本)9780769541570

In this paper, we propose a new algorithm for job interchange in Computational Grids that consist of autonomous and equitable HPC sites, called Shaking-G. Originally developed for balancing the sharing of video files in P2P networks, we conceptually transfer and adapt the algorithm to the domain of job scheduling in Grids, building an integrated, load-adaptive two-tier job exchange strategy. We evaluate the performance of Shaking-G with real workload data in different experimental scenarios and show that it outperforms traditional non-Grid aware algorithms in setups without job interchange, fostering the benefits of collaboration between large HPC centers. © 2010 IEEE.

关键词： Grid computing

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