Báo cáo hóa học: " Research Article Impact of Radio Link Unreliability on the Connectivity of Wireless Sensor Networks" pptx
Báo cáo hóa học: " Research Article Random Field Estimation with Delay-Constrained and Delay-Tolerant Wireless Sensor Networks" pptx
... optimalnumber of samples to be encoded in each of the L timeslotsas a function of the channel conditions of that particulartimeslot. This constitutes the first original contribution of the paper. Along ... and CEDT cases). This constitutes the besttrade-off in terms of, on the one hand, the ability tocapture the spatial variations of the random field and, on the other, the persensor channel bandwidth ... distributions, the authors propose amathematical framework to study the impact of the randomsampling effect (arising from the adoption of contention-based multiple-access schemes) on the resulting...
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Báo cáo hóa học: " Research Article An Energy-Efficient Framework for Multirate Query in Wireless Sensor Networks" pptx
... function gcd(·)meanscalcu-lating the greatest common division. This contradicts with the precondition.Proof of Theorem 2. We can use the similar process to provethat the lower bound of the dissemination ... energyconsumption.From the basic rule of information theory, the totalamount of information is proportional to the number of samples and the number of bits coding the sample [10].Un-der the same ... N-strategy).Theorems 1 to 3 present some properties of the N-strategy. The proofs of these theorems are listed in the appendix.Theorem 1. Using N-strategy, the upper bound of the con-solidated...
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Báo cáo hóa học: " Research Article EDDK: Energy-Efficient Distributed Deterministic Key Management for Wireless Sensor Networks" pot
... the computation overhead for each node includes the encryption and authentication of the local broadcastmessage, the verification and decryption of the receivedmessages from neighbors, and the ... Wei, “Security considerations on node mobility in wireless sensor networks,” in Proceedings of the 4th International Conference on Computer Sciences andConvergence Information Te chnology (ICCIT ... overhead in the node.4.4. Key Maintenance Phase. The security strength on the information transmitted in the network relies primarily on the protection of the keys that are used for encryption.Should...
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Báo cáo hóa học: "Research Article Dual Wake-up Low Power Listening for Duty Cycled Wireless Sensor Networks" docx
... based sensor networktopologies.3.1. Radio energy modelWe focus on radio energy consumption in wireless sensor nodes. Having different power consumption levels, a radio device has one of the following ... configuration through evaluating the amount of average broadcast traffic. The amount of broadcast traffic depends on what kind of data gatheringand routing protocols are used. Based on conventional ... 2(c). The waiting durationshould be long enough as much as Tb of receiver. Afterreceiving the beacon, sender starts to transmit the pendedunicast packet through CSMA contention among otherpotential...
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Báo cáo hóa học: " Research Article Exploring Landmark Placement Strategies for Topology-Based Localization in Wireless Sensor Networks" pot
... placed at the boundary of the environment).Finally, note that, as one moves the location of λifrom the center of the environment to the boundary along astraight line, the areas of the level ... makes the zone size smaller. Regarding average zone area, since the sum of the areas of the zones is equal to the area of the environment, we deduceAverage zone area=πR2m,(2)where m is the ... other λj,where the approximation of the Euclidean distance by the geodesicdistance is accurate.Note that the zones on ∂Q correspond to the level sets of h|∂Q: ∂Q → NN. Each of these zones...
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Báo cáo hóa học: " Research Article Profile-Matching Techniques for On-Demand Software Management in Sensor Networks" potx
... explorationNeighborhood exploration covers two separate steps. The first one, which is optional depending on the configuration of the wireless sensor networks, is the setup of address infor-mation. ... for making one bi-nary. One static input pin belongs to the code templates for the generation of the wiring, the node profiles, and the con-figuration, another to the source code of the modules ... actions are re-sponsible for the behavior of the whole system. They depend on a global goal (e.g., a task) and control the reconfigurationprocess of the sensor network. The technical actions...
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Báo cáo hóa học: " Research Article Profile-Matching Techniques for On-Demand Software Management in Sensor Networks" doc
... for making one bi-nary. One static input pin belongs to the code templates for the generation of the wiring, the node profiles, and the con-figuration, another to the source code of the modules ... shows the principal concept of reconfiguration.We distinguish the following actions.(a) Depending on the global goal, the robot drives to the position in the sensor network, where reconfigurationmight ... actions are re-sponsible for the behavior of the whole system. They depend on a global goal (e.g., a task) and control the reconfigurationprocess of the sensor network. The technical actions...
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Báo cáo hóa học: " Research Article Impact of Radio Link Unreliability on the Connectivity of Wireless Sensor Networks" pptx
... respectively, the set of nodesand the set of valid radio links l(x, x). Under the hypothesis of switched links, l(x, x) only exists if both are in range one of each other.1 The connectivity ... CorporationEURASIP Journal on Wireless Communications and NetworkingVolume 2007, Article ID 19196, 16 pagesdoi:10.1155/2007/19196 Research Article Impact of Radio Link Unreliability on the Connectivity ... either the transmissionpower or the number of active nodes. The aim of this paper is to quantify the contribution of unreliable long hops to an increase of the connectivity of WSNs. In our model,...
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Báo cáo hóa học: " Research Article Edge Adaptive Color Demosaicking Based on the Spatial Correlation of the Bayer Color Difference" pptx
... focus on the local similarity of the Bayer colordifference plane not only along the directional axis butalso beside the axis within the local region. Since the edgedirections of the pixels on ... the difference plane of the opposite case. From these examples, the strong connection of the global shift direction and the local edge direction is described by the spatial correlation of Bayer color ... direc-tion. When the direction is not obviously determined, wedecide the direction as nondirectional (Non). Therefore, the final types of the edge direction are EDT={Hor, Ver, Non}.In the proposed...
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báo cáo hóa học:" Research Article Iterative Methods for Variational Inequalities over the Intersection of the Fixed Points Set of a Nonexpansive Semigroup in Banach Spaces" pot
... 1.Thatis,ψ is a contraction, and the proof is complete.In the following theorem, which is the main result in this section, we establish the strong convergence of the sequence defined by 1.8.Theorem ... improve some of the conditions and results in the mentionedpapers, especially those of Song and Xu 11.2. PreliminariesLet S : {x ∈ X : x 1} be the unit sphere of the Banach space X. The space ... further considered and studied the hybrid steepest-descent algorithm 1.6.Their major contribution is that the strong convergence of 1.6 holds with condition C3being replaced by the following...
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