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检索条件"任意字段=Conference on Next-Generation Communication and Sensor Networks 2007"

共 1567 条记录，以下是101-110 订阅

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A decentralized approach to secure management of nodes in distributed sensor networks

A decentralized approach to secure management of nodes in di...

引用

IEEE Military communications conference (MILCOM 2003)

作者： Zachary, J Univ S Carolina Dept Comp Sci & Engn Columbia SC USA

ISBN: (纸本)0780381408

Distributed sensor networks are a promising technology for surveillance and reconnaissance in many applications, such as next generation C4ISR and the digital battlefield. The dearth of effective security mechanisms are a main obstacle to the acceptance of distributed sensor networks. As research pushes sensor nodes to be smaller and ubiquitous, security issues become paramount. Security in sensor networks needs to be considered during the early phases of development. This paper describes a decentralized solution to the problem of securely checking node membership in ad hoc sensor networks. This method does not require each node to maintain a membership list, does not require communication between the base station and verifying node, and it efficiently handles dynamic membership events (node leaves and joins). It is based on the concept of quasi-commutative hash functions, also called one-way accumulators. The paper analyzes resource requirements and suggests new ways to optimize the use of one-way accumulators while maintaining security in sensor node applications.

关键词： Wireless telecommunication systems

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An autonomous multicast-tree creation algorithm for wireless sensor networks

An autonomous multicast-tree creation algorithm for wireless...

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International conference on Future generation communication Networking

作者： Onodera, Katsumi Miyazaki, Toshiaki Univ Aizu Grad Sch Informat Syst Aizu Wakamatsu Japan

ISBN: (纸本)9780769530482

In this paper, we propose an algorithm to realize a power-aware network topology in wireless sensor networks. The algorithm creates a multicast tree connecting all sensor nodes. In the multicast tree, a sink node should be a root node, and all the data sensed in the sensor nodes are transferred to the sink node using the tree connection. The relay nodes aggregate the received data, and transfer the aggregated data to the sink at an appropriate timing so as to avoid packet collisions. To do this, all the sensor nodes are grouped in clusters. Here, each cluster has a head node, which is automatically selected from among the nodes in the cluster. In addition, our algorithm has an autonomous mechanism that can change the cluster head dynamically based on the remaining energy of each sensor node and the communication quality among the sensor nodes, which are obtained by periodical information exchange between the sensor nodes. This mechanism contributes to extending the lifetime of the sensor network. After describing the algorithm, some experimental results are shown to prove its effectiveness and robustness.

关键词： sensor nodes

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Data fragmentation scheme in IEEE 802.15.4 wireless sensor networks

Data fragmentation scheme in IEEE 802.15.4 wireless sensor n...

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65th IEEE Vehicular Technology conference

作者： Yoon, Jongwon Lam, Hyogon Ko, Jeong-Gil Korea Univ Dept Comp Sci & Engn Seoul South Korea

ISBN: (纸本)9781424402656

The IEEE 802.15.4 Medium Access Control (MAC) protocol is designed for low data rate, short distance and low power communication applications such as Wireless sensor networks (WSN). However, in the standard 802.15.4 MAC, if the remaining number of backoff periods in the current superframe are not enough to complete data transmission procedure, the sensor nodes hold the transmission until the next superframe. When two or more sensor nodes hold data transmission and restart the transmission procedure simultaneously in the next superframe, it causes a collision of data packets and waste of the channel utilization. Therefore, the MAC design is inadequate to deal with high contention environments such as densely deployed sensor networks. In this paper, we propose a data fragmentation scheme to increase channel utilization and avoid inevitable collision. Our proposed scheme outperforms the standard IEEE 802.15.4 MAC in terms of collision probability and aggregate throughput. The proposed scheme is easily adapted to the standard IEEE 802.15.4 MAC without any additional message types.

关键词： Medium access control

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Efficient sensor Node Authentication via 3GPP Mobile communication networks 10

Efficient Sensor Node Authentication via 3GPP Mobile Communi...

引用

17th ACM conference on Computer and communications Security (CCS)

作者： Han, Kyusuk Kim, Jangseong Kim, Kwangjo Shon, Taeshik Korea Adv Inst Sci & Technol 119 Munjiro Daejeon South Korea Samsung Elect Inc Suwon South Korea

ISBN: (纸本)9781450302449

Energy effciency is one of important issues in the resource constrained wireless sensor network. In this paper, we pro- pose the authentication and key agreement protocol that efficiently reduces the overall computational and communticion cation costs in the next generation converged network. The enhanced security procedures are operated through the mo- bile network in order to maximize the lifetime of the sensor networks and to apply the combined capabilities of both networks.

关键词： Mobile Netwok Wireless sensor Network Authentication Key Agreement 3G-WS

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Resource management and control in NGN transport

Resource management and control in NGN transport

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Joint International conference on Optical Internet/Australian conference on Optical Fibre Technology

作者： Kim, ChoonHee Kwon, TaeHyun Choi, InSang Cha, YoungWook Daegu Cyber Univ Gyongsan 712714 Kyungsangbuk Do South Korea Andong Natl Univ Andong South Korea ETRI Daejeon South Korea

ISBN: (纸本)9780977565740

next generation network (NGN) is IP based broadband and integrated network of existing communication networks. This paper defines requirements of management information to perform resource admission and path computation for single-phase resource control scheme in NGN transport stratum. We also propose high-speed resource control mechanism based on parallel and single-phase scheme to minimize delay overhead between centralized resource admission control functions and transport functions.

关键词： next generation networks

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Optimized ML-MAC for Energy-Efficient Wireless sensor Network Protocol 5

Optimized ML-MAC for Energy-Efficient Wireless Sensor Networ...

引用

5th International conference on Confluence - The next generation Information Technology Summit (Confluence)

作者： Thalore, Ranjana Manju Jha, M. K. Mody Univ Sci & Technol Fac Engn & Technol Lakshmangarh India

ISBN: (纸本)9781479942367

Energy efficient protocol design for Wireless sensor networks (WSNs) is a very challenging task because of limited battery capacity of nodes. This necessity for energy efficient operation of a WSN has prompted the development of new protocols in all layers of the communication stack. Layer-wise utilization of densely deployed nodes to effectively prolong the overall network life is presented in this paper. Simulation is done in QualNet 6.1 network simulator. Effective number of layers as well as effective node density over a terrain is also analyzed to achieve energy efficient design. Layering helps the network to work for a long time as only one layer in the network is in action at a time, rest layers are completely sleeping. Also, sensor nodes in ML-MAC (Multi-Layer MAC) have a very short listening time that reduces the energy consumption during communication. The results are used to create a parameter estimator through MATLAB.

关键词： Wireless sensor networks (WSNs) ML-MAC QualNet 6.1 IEEE 802.15.4 Network Lifetime

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Pattern-based communication: A new paradigm for energy-aware wireless networks 2

Pattern-based communication: A new paradigm for energy-aware...

引用

2nd International conference on Information and communication Technologies: From Theory to Applications, ICTTA 2006

作者： Taherkordi, Amirhosein Taleghan, Majid Alkaee Sharifi, Mohsen Computer Engineering Department Iran University of Science and Technology Iran

ISBN: (纸本)0780395212

The low resource availability in the nodes of recent wireless networks has raised several new issues in the design of their hardware and software components. One of the high level approaches for optimizing resource usage in these networks is to reduce the number of communications among wireless nodes. In this paper, we propose a new paradigm for optimizing the number of data transmissions between nodes according to new attributes of next generation networks with wireless, energy-aware and data-centric features. We nickname our approach Pattern-Based communication. In pattern-based communication, every client issues its interest about receiving data according to some predefined patterns. If the set of data satisfies a pattern condition then the node sends the result of processing of this set of data to every client who is interested instead of sending all of them in turn. We evaluated our solution in a cluster-based wireless sensor network and show how the proposed communication model could optimize resource consumptions in sensor nodes. © 2006 IEEE.

关键词： next generation networks

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On event signal reconstruction in wireless sensor networks

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6th International IFIP-TC6 Networking conference, NETWORKING 2007

作者： Atakan, Barış Akan, Özgür B. Next Generation Wireless Communications Laboratory Department of Electrical and Electronics Engineering Middle East Technical University Ankara06531 Turkey

ISBN: (纸本)9783540726050

In Wireless sensor networks (WSN), the effective detection and reconstruction of the event signal is mainly based on the regulation of sampling and communication parameters used by the sensor nodes. The aim of this paper is to understand the effect of these parameters on the reconstruction performance of event signal in WSN. Theoretical analysis and results show that with proper selection of sampling and communication parameters, the event signal can be satisfactorily reconstructed at the sink. Furthermore, this study also reveals that the non-uniform and irregular sampling of the event signal outperform the uniform sampling in terms of the reconstruction performance while providing significant energy conservation. Moreover, it is also shown that node density is closely related with the quality. © IFIP International Federation for Information Processing 2007.

关键词： Signal reconstruction

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A WSN system architecture to capture context information for beyond 3G communication systems

A WSN system architecture to capture context information for...

引用

3rd Intelligent sensors, sensor networks and Information Processing conference

作者： Gluhak, Alexander Schott, Wolfgang Univ Surrey Ctr Commun Syst Res Guildford GU2 7XH Surrey England IBM Res GmbH Zurich Res Lab Zurich Switzerland

ISBN: (纸本)9781424415014

To enable new context-aware applications and services in future communication systems, wireless sensor networks (WSNs) are required to capture the context surrounding the service user and service related objects. This paper introduces a novel configurable architecture for a WSN system that is able to deliver context information from the sensors to the user in different application environments, and allows its efficient integration into third generation (3G) mobile communication systems in particular into the IP multimedia subsystem (IMS). The proposed architecture offers significant advantages compared to the ZigBee architecture.

关键词： Wireless sensor networks

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Wireless sensor networks in next generation communication infrastructure: Vision and challenges

Wireless sensor networks in next generation communication in...

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14th International conference on Computational Science and Its Applications, ICCSA 2014

作者： Qaisar, Saad Bin Ali, Salman Felemban, Emad A. School of Electrical Engineering and Computer Science National University of Sciences and Technology Islamabad Pakistan College of Computer and Information System Umm-ul-Qura University Mecca Saudi Arabia

ISBN: (纸本)9783319091464

Last decade saw the development of Wireless sensor networks with multitude of applications built around the sensors. Though most of the issues at protocol and device level remain solved for Wireless sensor networks, there is a growing trend in integration of sensors and sensor based systems with Cyber Physical Systems, Machine-to-Machine and Device-to-Device communication both in infrastructure and ad-hoc modes. The emergence of Cloud Computing, highly intelligent 'Smart' devices and efforts towards 5th generation telecom systems is expected to lead the revolution of a networked world with increased demand for situational awareness leading proliferation of sensors at the edge of physical world. Mounting intelligence built in 'smart' devices, scarcity of frequency spectrum, disruptive technologies and limitations on further reduction in base station size may render base station centric-architecture of today's wireless networks old-fashioned. Due to low data rate bursty nature of sensor data, massive-MIMO antennas, device-centric architectures, smarter devices and native support for Machine-to-Machine and Device-to-Device communication, sensor data originating from these systems and disruptive technologies is expected to grow manifold through passing years. communication and network engineers face an emerging challenge of designing communication and network protocols that can efficiently get integrated with the emerging wireless cellular and computing paradigms. In this paper, we list down these communication and networking challenges and provide our vision for Wireless sensor networks related platforms and enabling technologies of next decade. © 2014 Springer International Publishing.

关键词： next generation networks

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