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An on-demand bluetooth scatternet formation and routing protocol for wireless sensor networks

An on-demand bluetooth scatternet formation and routing prot...

引用

6th international conference on Software Engineering, Artificial Intelligence, Networking and Parallel/distributed computing and 1st ACIS international Workshop on Self-Assembling Wireless Networks, SNPD/SAWN 2005

作者： Zhang, Xin Riley, George F. Department of ECE Georgia Institute of Technology Atlanta GA 30332-0250

ISBN: (纸本)0769522947

Bluetooth is a promising short-range wireless communication technology with the characteristics of interference resilience and power efficiency which are required by wireless sensor networks. As an enhanced sensor node platform, the Intel Mote uses Bluetoth as its radio scheme and MAC protocol. However, most of the existing scatternet formation protocols intend to connect all the nodes within the networks regardless of traffic pattern. For wireless sensor network applications with traffic of low duty cycle, on-demand scatternet formation and routing achieve significant power saving by avoiding to maintain the entire network connectivity. We propose in this paper an on-demand scatternet and route formation protocol for Bluetooth-based wireless sensor networks. It is able to cope with multiple sources initiating traffic simultaneously in densely deployed wireless sensor networks. We also introduce a modified Inquiry scheme using extended ID packet for power efficient propagation of route request messages. Furthermore, we propose a mechanism employing POLL packets in Page processes to transfer scatternet formation and route reply information without extra overhead. Simulation results show that our on-demand scatternet formation and routing protocol can provide multihop channels with reasonable delay for Bluetooth-base wireless sensor networks. © 2005 ieee.

关键词： Wireless telecommunication systems

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A security framework with trust management for sensor networks

A security framework with trust management for sensor networ...

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Workshop of the 1st international conference on Security and Privacy for Emerging Areas in Communication Networks, 2005

作者： Zhiying, Yao Daeyoung, Kim Insun, Lee Kiyoung, Kim Jongsoo, Jang Korea Republic of Korea Republic of

ISBN: (纸本)0780394690

Wireless sensor networks are prone to security attacks, which are either common to conventional networks or unique for themselves due to the resource-constraint, susceptibility to physical capture, and wireless nature. Security solutions using crypto schemes are not enough, and sometimes not efficient. In this paper, we develop a security framework with trust management, i.e. establishment of trustworthy network environment, to secure sensor networks. For trust management, we explore a distributed trust model, enabling recommendation-based trust and trust-based recommendation, to build reasonable trust relationship among network entities, represented by numerical values, i.e. trust values. And our security framework fully relies on the values to execute security-related actions aiming at the tradeoff between security and network performance. © 2005 ieee.

关键词： Security of data

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Landscape: A high performance distributed positioning scheme for outdoor sensor networks

Landscape: A high performance distributed positioning scheme...

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ieee international conference on Wireless and Mobile computing, Networking and Communications

作者： Zhang, LQ Cheng, Q Wang, YG Zeadally, S

ISBN: (纸本)0780391829

In this work, we consider the sensor localization problem from a novel perspective by treating it as a functional dual of target tracking. In traditional tracking problems, static location-aware sensors track and predict the position/speed of a moving target. As a dual, we utilize a moving location-assistant (LA) (with global positioning system (GPS) or pre-defined moving path) to help location-unaware sensors to accurately discover their positions. We call our proposed system Landscape. In Landscape, an LA (an aircraft, for example) periodically broadcasts its current location while it moves around or through a sensor field. Each sensor collects the location beacons, measures the distance between itself and the LA based on received signal strength (RSS), and individually calculates their locations via an Unscented Kalman Filter (UKF) based algorithm. Our contributions are at least twofold. (1) Landscape is a distributed scheme, it does not rely on measured distances among neighbors (as used by most current proposals), which makes it robust to topology and density;Landscape involves zero sensor-to-sensor communication overhead, and is highly scalable to network size. (2) By introducing UKF in sensor localization problem, we reap multiple benefits: our UKF-based algorithm nicely exploits the constraints increasingly added by the beacons;it elegantly solves the nonlinear problem with low computation cost and complexity;and most importantly, it efficiently reduces the effects of measurement errors, making Landscape robust to ranging errors. Extensive simulations and evaluations against the state-of-the-art systems show that Landscape is a high-performance sensor positioning scheme for outdoor sensor networks.

关键词： wireless sensor networks localization algorithm unscented Kalman filter

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A key management scheme for mobile ad hoc networks based on threshold cryptography for providing fast authentication and low signaling load

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EUC 2005 Workshops: 2nd international Symposium on Ubiquitous Intelligence and Smart Worlds, UISW 2005, IFIP international Symposium on Network-Centric Ubiquitous systems, NCUS 2005, 1st international Workshop on Security in Ubiquitous computing systems, SecUbiq 2005, 1st international Workshop on RFID and Ubiquitous sensor Networks, USN 2005 and international Workshop on Trusted and Autonomic Ubiquitous and Embedded systems, TAUES 2005 held in conjunction with the IFIP international conference on Embedded and Ubiquitous computing, 2005

作者： Nguyen, Hoang Nam Morino, Hiroaki The National Institute of Information and Communication Technology 4-2-1 Nukui-kitamachi Koganei-cityTokyo184-8795 Japan Shibaura Institute of Technology 3-9-14 Shibaura Minato-ku Tokyo108-8548 Japan

ISBN: (纸本)3540308032

Providing secure communications is a crucial task for the success of future ubiquitous mobile communication systems. Using public key infrastructure (PKI) is considered as a good solution to fulfill the task. However, as mobile ad hoc networks (MANET) inherit unique characteristics such as dynamic topology, non-infrastructure architecture, centralized PKI architectures are not suitable for dynamic MANET. The use of distributed PKI models is more appropriate but requires additional modifications to adapt with network changes. In this paper, we introduce a novel key management scheme for MANET, which exploits advantages of threshold cryptography. The major innovative aspect of this scheme is the use of temporal substitute certificate authorities (SCA), which form a PKI model of multi SCA groups. Performance results obtained by computer simulation show that the proposed key management scheme can reduce the latency of authentication, certificate update delay and the signaling load. © IFIP international Federation for Information Processing 2005.

关键词： Authentication

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Defending against sybil attacks in sensor networks

Defending against sybil attacks in sensor networks

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25th ieee international conference on distributed computing systems Workshops, ICDCS 2005

作者： Zhang, Qinghua Wang, Pan Reeves, Douglas S. Ning, Peng Cyber Defense Laboratory Computer Science Department North Carolina State University RaleighNC27695-8207 United States

Sybil attack is a harmful threat to sensor networks, in which a malicious node illegally forges an unbounded number of identities to defeat redundancy mechanisms. Digital certificates are a way to prove identities. However, they are not viable in sensor networks. In this paper, we propose a light-weight identity certificate method to defeat Sybil attacks. Our proposed method uses one-way key chains and Merkle hash trees. The method thereby avoids the need for public key cryptography. In addition, the method provides a means for authentication of all data messages. A variant of this method is presented that has lower computational requirements under certain conditions. The security of each method is analyzed, and is as good or better than previously-proposed approaches, with fewer assumptions. The overhead (computation, storage, and messages) is also shown to be acceptable for use in sensor networks. © 2005 ieee

关键词： Public key cryptography

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Energy conservation stratedgy for sensor networks

Energy conservation stratedgy for sensor networks

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First ieee international conference on distributed computing in sensor systems, DCOSS 2005

作者： Lee, Hyo Jong Chonbuk National University Jeonju Jeonbuk Prov Korea Republic of

A simple but efficient power conserving algorithm for the sensor networks is presented in this paper. The goal is to predict sleep time for the sensor networks based on statistics of data transfer. The proposed sensors in this paper can increase the sensor's life time from 247% to 600% within the range of 1% tolerable data error. © Springer-Verlag Berlin Heidelberg 2005.

关键词： Energy conservation

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Applying mobile agent in distributed speech recognition using JADE

Applying mobile agent in distributed speech recognition usin...

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2005 1st international conference on Computers, Communications and Signal Processing with Special Track on Biomedical Engineering, CCSP 2005

作者： Saaim, Emrul Hamide Md Ahmad, Abdul Manan Alias, Mohamad Ashari Othman, Mohd Fauzi Speech Recognition Laboratory Faculty of Computer Science and Information Systems University of Technology Malaysia 81310 Skudai Johore Malaysia

ISBN: (纸本)1424400112

This paper presents an application of mobile agent technology in distributed speech recognition over the internet. Mobile agent is one of a new paradigms for distributed application. With some advantages of using mobile agent for distributed application, we believe that mobile agent is a good idea to support distributed speech recognition over the internet. Speech is captured by clients, and after some local processing, the information is then sends to the server. The server recognized the speech according to an application framework and sends the result or action back to the client. In this paper, we develop the system by using JADE. JADE is one of the agents programming language and fully implemented in JAVA language. © 2005 ieee.

关键词： Mobile agents

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Evaluation of fault-tolerant mobile agents in distributed systems

Evaluation of fault-tolerant mobile agents in distributed sy...

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1st ieee/IFIP international conference in Central Asia on Internet (ICI)

作者： Mohammadi, K. Hamidi, H. Iran Univ Sci & Technol Dept Elect Engn Tehran Iran

ISBN: (纸本)0780391799

The secure execution of a mobile agent is a very important design issue in building a mobile agent system and many fault-tolerant schemes have been proposed so far. Mobile agents are no longer a theoretical issue since different architectures for their realization have been proposed In the context of e-commerce, execution atomicity is an important property for mobile agents. A mobile agent executes atomically, if either all its operations succeed, or none at all. This requires to solve an instance of the atomic commitment problem. However, it is important that failures (e.g., of machines or agents) do not lead to blocking of transactional mobile agents, i.e., agents that execute as a transaction. In this paper, we give a novel specification of non-blocking atomic commitment in the context of mobile agent execution. Fault tolerance for mobile agent systems is an unsolved topic, to which more importance should be attached. Besides the security problems by intended attacks it is very important to realize that an agent can simply get lost by errors of the network or the hosts. We then show how transactional mobile agent execution can be built on top of earlier work on fault-tolerant mobile agent execution and give preliminary performance results.

关键词： mobile agents non-blocking atomic commitment transaction replication fault-tolerant

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On interoperating incompatible atomic commit protocols in distributed databases

On interoperating incompatible atomic commit protocols in di...

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2005 1st international conference on Computers, Communications and Signal Processing with Special Track on Biomedical Engineering, CCSP 2005

作者： AI-Houmaily, Yousef J. Department of Computer and Information Programs Institute of Public Administration Riyadh 11141 Saudi Arabia

ISBN: (纸本)1424400112

This paper proposes an adaptive participant's presumption protocol (Ap 3) that can be used to atomically commit Internet transactions. Ap3interoperates a one-phase commitprotocol, namely, implicit-yes vote, and two-phase commit protocols, namely, presumed abort and presumed commit, in a dynamic fashion. Thus, it offers the performance advantage of the combined protocols, whenever possible, while still providing the wide applicability of two-phase commitprotocols. This is achieved in spite ofthe incompatibilities between atomic commit protocols that lead to the general practice ofadopting a single atomic commit protocol in any distributed database system. © 2005 ieee.

关键词： distributed database systems

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Development of grid middleware CyberGRIP and its applications

Development of grid middleware CyberGRIP and its application...

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1st international conference on e-Science and Grid computing, e-Science 2005

作者： Miyazwa, Kimio Kadooka, Yoshimasa Yamashita, Tomonori Suzuki, Toshiyuki Tago, Yoshio Fujitsu Laboratories Ltd. 1-1 Kamikodanaka 4-Chome Nakahara-ku Kawasaki 211-8588 Japan Fujitsu Ltd. 1-1 Kamikodanaka 4-Chome Nakahara-ku Kawasaki 211-8588 Japan Fujitsu Ltd. 9-18 Shinyokohama 3-Chome Kouhoku-ku Yokohama 222-0033 Japan Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan

ISBN: (纸本)0780394631

Recently, there have been demands for greater functional diversity and higher performance in the information technology infrastructure. As a result, the complexity and scale of product design in the product development phase have increased. In addition, development periods need to be reduced so products can be marketed sooner. These requirements have rapidly increased the need to simulate and analyze efficiently in order to achieve optimum designs and verification. At the same time, the needs to do massive simulations effectively become large to avoid the risks in financial business. To satisfy these requirements, there are some technical issues to be solved. For this purpose, CyberGRIP has been developed as grid problem solving environments to realize the virtualization of heterogeneous distributed computing resources. This paper describes the detail explanation of CyberGRIP, its concrete applications and results for the product development in manufacturing industries and for the currency option in financial business. © 2005 ieee.

关键词： distributed computer systems

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