... transmission of duplicated information in energy-constraint wireless sensor networks (WSNs). The performance of clustering is greatly influenced by the selection of cluster-heads, which are in charge of ... cluster-head selection, optimal number of clusters 1 Introduction Wireless sensor networks (WSNs) consist of spatially distributed autonomous sensor nodes with sensing, pro- cessing, and wireless communicating ... energy consumption in multi- cluster sensor networks for source extraction. IEEE Trans Wireless Commun. 8(3), 1480–1489 (2009) 14. LM Feeney, M Nilsson, Investigating the energy consumption of a wireless network...
Ngày tải lên: 20/06/2014, 22:20
Ngày tải lên: 22/06/2014, 19:20
Báo cáo hóa học: " A Survey of Application Distribution in Wireless Sensor Networks" ppt
Ngày tải lên: 23/06/2014, 00:20
Báo cáo hóa học: " Research Article Trade-Offs between Energy Saving and Reliability in Low Duty Cycle Wireless Sensor Networks Using a Packet Splitting Forwarding Technique" docx
... synchronization among all the nodes of the network is not needed and we will demonstrate that a synchronization among consecutive clusters is sufficient. Synchronization of the nodes belonging ... topics and design constraints in Wireless Sensor Networks (WSNs) is the reduction of energy consumption because, in most application scenarios, replacement of power resources in sensor devices might ... are composed of several low-cost devices with limited processing and storage capabilities, consequently, one of the hot topics in wireless sensor networks is the reduction of energy consumption. Due...
Ngày tải lên: 21/06/2014, 11:20
On the Lifetime of Wireless Sensor Networks
... estimations of network lifetime. Another ACM Transactions on Sensor Networks, Vol. 5, No. 1, Article 5, Publication date: February 2009. On the Lifetime of Wireless Sensor Networks • 5:7 definition ... MANESIS, S. 2005. A survey of applications of wireless sensors and wireless sensor networks. In Proceedings of the 13th Mediterrean Conference on Control and Automation, 719– 724. B AI, X., KUMARY, ... detection in sensor networks. ACM Trans. Sen. Netw. 2, 1, 94–128. ACM Transactions on Sensor Networks, Vol. 5, No. 1, Article 5, Publication date: February 2009. On the Lifetime of Wireless Sensor Networks • 5:35 Fig....
Ngày tải lên: 28/04/2014, 13:38
Báo cáo hóa học: " Research Article Impact of Radio Link Unreliability on the Connectivity of Wireless Sensor Networks" pptx
Ngày tải lên: 22/06/2014, 19:20
A Survey on Network Security and Attack Defense Mechanism For Wireless Sensor Networks pdf
... Shi, D. Song, and A. Perrig, “The Sybil attack in sensor networks: Analysis and defenses” in Proceedings of the 3 rd IEEE International Symposium on Information Processing in Sensor Networks ... attack on the availability of the network, for example physical capturing of the nodes, message corruption, insertion of malicious code etc. Interception is an attack on confidentiality. The sensor ... Pre- distribution Data and information spoofing, Attacks in information in Transit Traditional wireless sensor network Provide resilience of the network, Protect the network even if part of the...
Ngày tải lên: 05/03/2014, 23:20
The Impact of Spatial Correlationon Routing with Compressionin Wireless Sensor Networks
... MOTWANI, R. 2004. Scale-free aggregation in sensor networks. In Proceedings of the 1st International Workshop on Algorithmic Aspects of Wireless Sensor Networks (AlgoSensors’04). Turku, Finland. Springer-Verlag, ... NEUHOFF, D. L. 2003. On the many-to-one transport capacity of a dense wireless sensor network and the compressibility of its data. In Proceedings of the International Workshop on Information Processing ... in correlation aware data gathering in wireless sensor net- works. In Proceedings of the IEEE Communications Society Conference on Sensor and Ad Hoc Communications and Networks (SECON). Santa...
Ngày tải lên: 28/04/2014, 13:41
The Impact of Spatial Correlationon Routing with Compressionin Wireless Sensor Networks
... repre- sentation and routing for wireless sensor networks based on a distributed wavelet compression algorithm. In Proceedings of the ACM/IEEE International Symposium on Information Processing in Sensor Networks ... com- pression over a logical mapping of nodes based on their data content, inde- pendent of locations. None of this work, including this article, considers the practical details of how compression is ... MOTWANI, R. 2004. Scale-free aggregation in sensor networks. In Proceedings of the 1st International Workshop on Algorithmic Aspects of Wireless Sensor Networks (AlgoSensors’04). Turku, Finland. Springer-Verlag,...
Ngày tải lên: 28/04/2014, 13:41
Báo cáo toán học: " A virtual infrastructure based on honeycomb tessellation for data dissemination in multi-sink mobile wireless sensor networks" pot
... overall energy consumption. These simulation results about energy consumptions of the protocols agree with our theoretical analysis on communication costs of the protocols in Section 5.2. Although ... shows the comparison of the worst-case communication costs of all approaches for two scenarios. We consider 1000 sensor nodes deployed on a unit square sensor field of size 1×1. The sensor coverage ... instance, in mission critical applications of wireless sensor networks (WSNs), sinks can be associated to first resp onders. In such scenarios, reliable data dis- semination of events is very...
Ngày tải lên: 20/06/2014, 20:20
Báo cáo hóa học: " Hop-distance relationship analysis with quasi-UDG model for node localization in wireless sensor networks" pdf
... location verification in wireless sensor networks, in Proc IEEE International Conference on Communications (ICC). 8, 3485–3490 (2006) 21. L Zhao, Q Liang, Hop-distance estimation in wireless sensor ... relationship analysis with quasi-UDG model for node localization in wireless sensor networks. EURASIP Journal on Wireless Communications and Networking 2011 2011:99. Gao et al. EURASIP Journal on Wireless ... joint distribution from Monte Carlo simulations in a circular region and proposed an attenuated Gaussian approxi- mation for the conditional probability distribution function (pdf) of the Euclidean...
Ngày tải lên: 20/06/2014, 22:20
Báo cáo hóa học: " Efficient integration of secure and safety critical industrial wireless sensor networks" doc
... 2011:100 http://jwcn.eurasipjournals.com/content/2011/1/100 Page 9 of 13 propose two different approaches for tight integration of Profibus and Interbus using Profinet IO. Wireless extensions of automation networks and field- buses ... a proof -of- concept implementa tion using Profisafe, Profinet IO, and WirelessHART using an industrial control system. The integration method allows secur- ity and safety-related configuration to be ... communication has progressed enormously in the last decade with the replacement of the traditional one-to-one connections between sensors/actua- tors and c ontrollers by networked connections. In...
Ngày tải lên: 20/06/2014, 22:20
Báo cáo hóa học: " Research Article Modelling and Implementation of QoS in Wireless Sensor Networks: A Multiconstrained Traffic Engineering Model" pdf
... depending on the network topology and the number of information transmitting nodes. The average energy consumed is an indication of the energy consumption in transmission and reception of all packets ... random walks on random graphs: routing algorithms for large scale wireless sensor networks, ” in Proceedings of the 1st ACM International Workshop on Wireless Sensor Networ ks and Applications, pp. ... efficiency of ad hoc networks using frequency of route discovery reduction. Using a retransmission probability function to reduce redundant copies of the same event data, Directed transmission [16]...
Ngày tải lên: 21/06/2014, 17:20
Báo cáo hóa học: " MAC Security and Security Overhead Analysis in the IEEE 802.15.4 Wireless Sensor Networks" potx
Ngày tải lên: 22/06/2014, 22:20
Báo cáo hóa học: " Research Article Wireless Sensor Networks: Performance Analysis in Indoor Scenarios" ppt
Ngày tải lên: 22/06/2014, 22:20
Báo cáo hóa học: " Research Article Energy-Efficient Transmission of Wavelet-Based Images in Wireless Sensor Networks" pdf
Ngày tải lên: 22/06/2014, 22:20
A critical discourse analysis of the news on north korean missile launches part 3
... coalition and North Korea in Nhan Dan Table 3. Negativization of North Korea’s activities in VOA Table 4. Positivization of the US- Japan coalition’s activities in VOA Table 5. Lexicalization of ... Dan Table 6. Lexicalization of the US-Japan coalition’s activities in Nhan Dan Table 7. Over-lexicalization of the North Korea’s missile launches in VOA Table 8. Over-lexicalization of the North Korea’s ... Critical Discourse Analysis …………… 6 1.2. Theories on Critical Discourse Analysis …………………………………………8 1.2.1.What is Critical Discourse Analysis …………………………………………… 9 1.2.2.Key notions of CDA ……………………………………………………………...
Ngày tải lên: 07/11/2012, 14:39