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检索条件"任意字段=3rd International Symposium on Information Processing in Sensor Networks"

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Energy Aware Diffusion in Wireless sensor networks 3

Energy Aware Diffusion in Wireless Sensor Networks

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3rd international Conference on Image information processing (ICIIP)

作者： Kishtwal, Ashok Gupta, Abhishek Baddi Univ Emerging Sci & Technol Dept Comp Sci & Engn Solan Himachal Prades India Jaypee Univ Infonnat Technol Solan Himachal Prades India

ISBN: (纸本)9781509001484

Wireless sensor Network is a network of hundreds or thousands of sensor Nodes. These Nodes communicate with each other with short range radio signals. These nodes are small in size and have very limited battery power. The focus of the researchers is always on developing the routing protocols having the low power consumption to enlarge the life time of the network. In this paper we have proposed Energy Aware Diffusion for wireless sensor networks which is based on directed diffusion. In Directed Diffusion The path selection done by the Sink Node is based on the quality of the path (i.e. the path will be selected based on the higher data rate). In our approach the sink will select a path which will require minimum energy to send the data from source to sink. The experimental results shows that the proposed algorithm works better in terms of network life time, average end to end delay and energy savings.

关键词： WSN DD sensor Sink Node

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Secure Framework for Data Centric Heterogeneous Wireless sensor networks

Secure Framework for Data Centric Heterogeneous Wireless Sen...

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3rd international Conference on Network Security and Applications

作者： Sandhya, M. K. Murugan, K. Anna Univ Madras 25 Tamil Nadu India Anna Univ Ramanujan Comp Ctr Madras 600025 Tamil Nadu India

ISBN: (纸本)9783642144776

Data aggregation is an important task in data centric heterogeneous wireless sensor networks because of its varying power and computational capabilities. Due to the deployment of sensor nodes in large numbers for different applications, a single node is not sufficient for performing data aggregation. Hence multiple nodes are required to summarize the relevant information from huge data sets. The process of data aggregation is vulnerable to many threats like loss of cryptographic keys, false data injection etc. To address these issues, we present the Secure Data Aggregation with Key Management (SDAKM) scheme. It provides a secure framework for the data centric heterogeneous wireless sensor networks using additive privacy homomorphism. It uses the heterogeneity of the sensor nodes for performing encrypted data processing and also provides an efficient key management scheme for data communication among sensor nodes in the network. This scheme offers higher security and has less computing overhead as it uses additive privacy homomorphism.

关键词： Data Centric Heterogeneous Wireless sensor networks Data Aggregation Security Key Management Privacy Homomorphism

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Comparison of Energy Efficient Data Collection Techniques in Wireless sensor Network 3

Comparison of Energy Efficient Data Collection Techniques in...

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3rd international Conference on Recent Trends in Computing (ICRTC)

作者： Rohankar, Rupali Katti, C. P. Kumar, Sushil Jawaharlal Nehru Univ Delhi India

Application of wireless devices is increasing day-by-day in all areas of human life throughout the world. Most of these devices are based on tiny sensors that collect information from surrounding environment automatically without any human intervention when they are deployed in the environment thus creating wireless sensor networks. These tiny sensors are highly energy constrained due to their limited battery, storage, processing power and communication capacity. The constraint makes 'Energy Efficiency' one of the most investigated themes among researchers in wireless sensor networks. In the past, various energy efficient data collection techniques have been suggested in the literature. This paper presents a qualitative review of recent advances in data collection techniques in WSN. The review classifies each of the considered techniques based on underlying topology. A second level categorization of these techniques is done based on energy saving scheme used. A comparison of these techniques is provided for qualitatively evaluating these techniques. The review concludes with a discussion on limitations of the considered techniques. (C) 2015 The Authors. Published by Elsevier B.V.

关键词： WSN data collection energy efficiency network lifetime maximization energy saving

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The Effects of Terrain Types on 3D Coverage under Heterogeneous Deployment Strategies in Wireless sensor networks

The Effects of Terrain Types on 3D Coverage under Heterogene...

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23rd international symposium on Computer and information Sciences (ISCIS)

作者： Oktug, Sema Khalilov, Anar Tezcan, Hakan Istanbul Tech Univ Dept Comp Engn TR-80626 Istanbul Turkey

ISBN: (纸本)9781424428809

This paper focuses on the 3D coverage problem in Wireless sensor networks employing real-world terrain models. Firstly, we examine the sensing models used in WSN and propose novel deployment strategies. Then, we study the coverage behavior of these heterogeneous deployment strategies under three 3D real-world terrain models. Our purpose is to find answers to questions like which deployment strategy gives the best 3D coverage for a specified 3D terrain and how many sensors are needed to maintain coverage at a specified percentage. Furthermore, on these 3D real-world terrain models we also study the effects of sleeping on coverage. Simulation results demonstrate that for a given terrain type an appropriate deployment strategy can be selected to obtain required 3D coverage level.

关键词： Wireless sensor networks

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Integrating Linked sensor Data for On-line Analytical processing On-The-Fly 3

Integrating Linked Sensor Data for On-line Analytical Proces...

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3rd IEEE international Colloquium on information Science and Technology (CIST)

作者： Guilavogui, Koly Kjiri, Laila Fredj, Mounia Mohammed V Souissi Univ ENSIAS Ave Mohammed Ben Abdellah Regragui Rabat Morocco

ISBN: (纸本)9781479959792

sensor networks are gaining more and more attention in the current technology landscape. It is undeniable that their use allows a better monitoring of events that occur in the real world. Many sensors have been deployed for monitoring applications such as environmental monitoring, and traffic monitoring. A number of governments, corporates, and academic organizations or agencies hold independently sensor systems that generate a large amount of dynamic information from data sources with various formats of schemas and data. They are making this sensor data openly accessible by publishing it as Linked sensor Data (LSD) on the Linked Open Data (LOD) cloud. LSD is the concept that defines the publication of public or private organization sensor data without restrictions. This is achieved by transforming raw sensor observations to rdF format and by linking it with other datasets on the LOD cloud. The seamless integration of LSD sources from multiple providers is a great challenge. In this paper, we investigate the possibility of integrating diverse LSD sources using the hybrid ontology approach for on-line analytical processing (OLAP) on-the-fly. With such an ontology-based integration framework, organizations or individuals will have greater opportunity to make their respective analysis based on a large amount of sensor data openly accessible on the Web.

关键词： Integration Systems Data warehouses OLAP Linked Data Linked sensor Data

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An intelligent sensor network for distributed data rectification and process monitoring

An intelligent sensor network for distributed data rectifica...

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2005 3rd IEEE international Conference on Industrial Informatics, INDIN

作者： Joe, Yen Yen Ding, Zhong Qiang Ling, Keck Voon Romagnoli, Jose Singapore Institute of Manufacturing Technology Singapore Singapore School of Electrical and Electronic Engineering Nanyang Technological University Singapore Singapore Department of Chemical Engineering University of Sydney Australia

ISBN: (纸本)0780390946

sensor network is a key technology for the 21st century. Our research aims to formulate and implement a new conceptual model for the next generation of networked sensor devices, which encompasses not only intelligence in local sensor nodes such that the sensors are self validating, but also the additional capability that the sensors could be networked and communicate with one another and share information. The basic idea is to decompose the processing of monitoring and data rectification tasks and decentralize them on a federated sensor network. The proposed framework has been implemented for a chemical process unit. Experiment results demonstrated the feasibility and thus, the potential of the proposed sensor network. © 2005 IEEE.

关键词： Intelligent networks

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Resilient transmission of H.264/AVC video sequences using Probabilistic Neural networks

Resilient transmission of H.264/AVC video sequences using Pr...

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3rd IEEE international symposium on Control, Communications and Signal processing (ISCCSP 2008)

作者： Farrugia, Reuben A. Debono, Carl J. Univ Malta Dept Commun & Comp Engn Msida Malta

ISBN: (纸本)9781424416875

H.264/AVC is expected to become an essential component in the delivery of wireless multimedia content. While achieving high compression ratios, this codec is extremely vulnerable to transmission errors. These errors generally result in spatio-temporal propagation of distorted macroblocks (MBs) which significantly degrade the perceptual quality of the reconstructed video sequences. This paper presents a scheme for resilient transmission of H.264/AVC streams in noisy environments. The proposed algorithm exploits the redundant information which is inherent in the neighboring MBs and applies a Probabilistic Neural Network (PNN) classifier to detect visually impaired MBs. This algorithm achieves Peak Signal-to-Noise Ratio (PSNR) gains of up to 14.29 dB when compared to the standard decoder. Moreover, this significant gain in quality is achieved with minimal overheads and no additional bandwidth requirement, thus making it suitable for conversational and multicast/broadcast services where feedback-based transport protocols cannot be applied.

关键词： error-resilient video coding H.264/AVC learning systems wireless video transmission

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A nonsmooth optimization approach to sensor network localization

A nonsmooth optimization approach to sensor network localiza...

引用

3rd Intelligent sensors, sensor networks and information processing Conference

作者： Bagirov, Adil Lai, Daniel T. H. Palaniswami, M. Univ Ballarat Sch Informat Technol & Math Sci POB 663 Ballarat Vic 3353 Australia Univ Melbourne Dept Elect & Elect Engn Melbourne Vic 3010 Australia

ISBN: (纸本)9781424415014

In this paper the problem of localization of wireless sensor network is formulated as an unconstrained nonsmooth optimization problem. We minimize a distance objective function which incorporates unknown sensor nodes and nodes with known positions (anchors) in contrast to popular semidefinite programming (SDP) methods which use artificial objective functions. We study the main properties of the objective function in this problem and design an algorithm for its minimization. Our algorithm is a derivative-free discrete gradient method that allows one to find a near global solution. The algorithm can handle a large number of sensors in the network. This paper contains the theory of our proposed formulation and algorithm while experimental results are included in later work.

关键词： sensor networks nonsmooth optimization derivative free algorithms

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Signal-to-noise ratio requirements for wireless relay networks

Signal-to-noise ratio requirements for wireless relay networ...

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3rd IEEE international symposium on Control, Communications and Signal processing (ISCCSP 2008)

作者： Renk, Tobias Jaekel, Holger Kloeck, Clemens Jondral, Friedrich K. Univ Karlsruhe TH Inst Nachrichtentech Karlsruhe Germany

ISBN: (纸本)9781424416875

We develop and analyze expressions on the required instantaneous signal-to-noise ratios for wireless relay networks in this paper. Two basic schemes are studied, namely the one-relay case and the two-relay case. The latter can further be divided into a two-phase and a three-phase! scheme, respectively. In the two-phase scheme both relays are only allowed to transmit with half the power in order to ensure fair comparison between the different schemes. Moreover, for the one-relay case and the two-phase scheme, each terminal must serve double the target rate, whereas in the three-phase scheme, each terminal has to serve three times the target rate to ensure that the amount of transmitted information remains constant We show the following correspondences when decode-and-forward relaying and selection combining is applied in Rayleigh fading environments: For the one-relay case gamma proportional to 1/root p(out) and for both two-relay schemes gamma proportional to 1/3 root p(out). We further show that an increase in data rate of 1 bit/s/Hz results in a required increase of signal-to-noise ratio of 6 dB for the one-relay case and the two-phase two-relay scheme, and an increase of 9 dB for the three-phase two-relay scheme.

关键词： Signal to noise ratio

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Improved energy efficiency of DMAC with periodic full sleep cycle for wireless sensor networks with heavy traffics

Improved energy efficiency of DMAC with periodic full sleep ...

引用

3rd Intelligent sensors, sensor networks and information processing Conference

作者： Oh, Kyoungseok Woo, Seok Sung, Seokjin Kim, Kiseon GIST Dept Informat & Commun Kwangju 500712 South Korea

ISBN: (纸本)9781424415014

Although data-gathering MAC in [1] is an energy efficient and low latency protocol designed for data gathering tree structures, nodes which are located in the vicinity of the sink node, may suffer from packet collision and loss due to many-to-one traffic patterns in tree structures under heavy traffic loads. In addition, this leads to wastes energy for retransmissions of dropped packets. In this paper, we propose an energy-efficient MAC protocol with a periodic full sleep cycle at leaf nodes to mitigate overloads at low depth nodes in heavy traffics. In the protocol, leaf nodes go into a full sleep state for one cycle in heavy traffics, which results in a considerably reduction of packet collisions, drops, and energy consumption at low depth nodes. Simulations show the proposed protocol saves more energy and achieves a better packet delivery ratio compared to the existing protocols.

关键词： Energy efficiency

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