containing denialofservice attacks in broadcast authentication in sensor networks
Báo cáo toán học: " Localization in mobile wireless and sensor networks" pot
... a very large database of RSS fingerprints.Machine learning techniques are employed to extractthe location information from online RSS measurementsshowing promising performance for room-level ... robustness to NLOS errors, indoorpositioning, and localization in wireless sensor networks (WSNs).The first group of articles deals with the interaction ofpositioning and communications at ... reproduction in any medium,provided the original work is properly cited.al. propose a channel parameter estimator for joint com-munications and positioning systems, using soft infor-mation concerning...
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Tài liệu ADC KRONE - Guide - Fiber in Broadcast & Production Facilities pptx
... labor wisely. Againstthis backdrop, using factory-terminated fiber in stationsmakes a lot of sense.The labor savings associated with using factory-terminated cables in most instances make it ... elimination of wastedmaterial and time offered by using factory-terminatedfiber optic cable make a little re-orientation in engineering mindset and practice more than worthwhile.Top Ten Things ... Connector TerminationTop Ten Things to KnowPage 9Common practice among broadcast engineers calls forcutting coax to the desired length and attachingconnectors in the field. Doing so with coax...
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Tài liệu Fiber in Broadcast and Production Facilities docx
... reflected into cladding along Ø3n1n2Fiber CasingFiber Corepolishing creates a rounded finishWHITE PAPERFiber in Broadcast and Production FacilitiesTop Ten Things to KnowTop Ten Things ... the broadcast business evolves from a single analog channel to a digital broadcast world, the continued roll of coax cable is being re-evaluated. In its place, fiber optic cable is emerging ... such as following a 1.5-inch bend radius policy, guarding against excessive cable pile-up, troughing horizontal runs, implementing vertical cable protection and providing for expanding slack...
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Tài liệu Appendix D: Authentication in CHAP, MS-CHAP, and MSCHAP v2 docx
... CHAP Challenge message containing a session ID and an arbitrary challenge string. 2. The remote access client returns a CHAP Response message containing the user name in plain text and a hash ... Response message containing the user name in plain text and a hash of the challenge string, session ID, and the MD4 hash of the client's password using the MD4 one-way hashing algorithm. ... document may be reproduced, stored in or introduced into a retrieval system, or transmitted in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), or for any...
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Tài liệu Supplement to Authentication in an Internet Banking Environment docx
... customer authentication, as described in the 2005 Guidance, is broad. It includes more than the initial authentication of the customer when he/she connects to the financial institution at login. Since ... related to: initial login and authentication of customers requesting access to the institution’s electronic banking system; and initiation of electronic transactions involving the transfer ... continued to innovate in response to the increasing cyber threat environment. In addition to some of the control methods previously discussed, other examples of customer authentication include...
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SECURITY IN WIRELESS SENSOR NETWORKS – IMPROVING THE LEAP PROTOCOL pptx
... after receiving his B.Sc. degree in electrical engineering; he worked as a broadcasting engineer for two years and is currently attempting to pursue his educational knowledge by undertaking a Ph.D ... nodePassive information gatheringSybil attacks Sinkhole attacks wormhole attacks False node and malicious dataInternational Journal of Computer Science & Engineering Survey (IJCSES) ... using these protocols. The main purpose of these nodes is to gather information or events occurring from their targets. The main functions associated with sensor nodes include: collecting information...
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Báo cáo khoa học: "Detection of Agreement and Disagreement in Broadcast Conversations" pot
... train-ing set by either oversampling the minority class ordownsampling the majority class. In this prelimi-nary study of sampling approaches for handling im-balanced data for CRF training, ... using constraint classifiers. In Proceedingsof HLT/NAACL.D. Hillard, M. Ostendorf, and E. Shriberg. 2003. De-tection of agreement vs. disagreement in meetings:Training with unlabeled data. In ... these two sam-pling approaches as well as the baseline are shown in Table 3. Both sampling approaches achieved sig-nificant improvement over the baseline, i.e., train-ing on the original data set,...
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Event-to-Sink Reliable Transport in Wireless Sensor Networks docx
... 10.1109/TNET.2005.857076Fig. 1. Typical sensor network topology with event and sink. The sink is onlyinterested in collective information of sensor nodes within the event radius andnot in their individual data.To ... PROBLEM IN WSN In the preceding discussions, we introduced the notion ofevent-to-sink reliability in WSN and pointed out the inapplica-bility of existing transport solutions. Before proceeding ... wireless sensor networks, ” in Proc. ACM WSNA,Atlanta, GA, Sep. 2002, pp. 1–11.[13] J. Zhao and R. Govindan, “Understanding packet delivery performance in dense wireless sensor networks, ” in Proc....
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REED: Robust, Efficient Filtering and Event Detection in Sensor Networks docx
... Culler. Taming the underlying challenges of reliable multihop routing in sensor networks. In Proc. of SenSys, 2003. [31] Yong Yao and Johannes Gehrke. Query processing in sensor net-works. In Proceedings ... node, and then sending this result back to the node containing the original table and joining again. This semi-join technique is an interesting possible optimization, though our Bloom-filter ... Processing. In IPSN, 2003. [7] M. Chu, et al. Scalable information-driven sensor querying and routing for ad hoc heterogeneous sensor networks. Int. Journal of High Perform-ance Computing, 2002....
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localization in the wireless sensor networks
... Ula20arcsin( )c tdθ∆=(3.1)022 sin( )AAAOAc Tc BNN fσπ θ≥∆(3.2)Đồ án 2 Localization in the wireless sensor networks 1[min(x +d ),min(y +d )]i i i iP =2[max(x -d ),min(y +d ... án 2 Localization in the wireless sensor networks 2.2 THU THẬP THÔNG TIN XỬ LÝ VÀ LƯU TRỮ DỮ LIỆU- Ứng dụng trong giao thông: Mục tiêu của các hệ thống này là thu nhập thông tin thông qua các ... 2 Localization in the wireless sensor networks - WSNs hỗ trợ kích cỡ mạng khác nhau, từ một đến vài trăm nút.Có thể trải trên một phạm vị rộng lớn.- Tiết kiệm chi phí.- Tính linh hoạt của hệ...
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Báo cáo sinh học: " Decentralized estimation over orthogonal multiple- access fading channels in wireless sensor networks-- optimal and suboptimal estimators" pot
... communication SNR levels. Itis interesting to see that using more training symbols does not improve the performance of the MLE asexpected, because inserting training symbols will reduce the energy ... discussed, inserting training symbols is a heuristic way to improve the performance. It is shown in the25Decentralized estimation over orthogonal multiple-access fading channels in wireless sensor networks optimal ... sor s can transmit training symbols to facilitatechannel estimation. The training symbols can be incorporated into the message function c(x). Then, t heMLE with training symbols available is...
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báo cáo hóa học:" Decentralized estimation over orthogonal multiple- access fading channels in wireless sensor networks-- optimal and suboptimal estimators" ppt
... communication SNR levels. Itis interesting to see that using more training symbols does not improve the performance of the MLE asexpected, because inserting training symbols will reduce the energy ... designed in [10–12]. The optimal trade-off between the number of active sensorsand the quantization bit rate of each sensor is investigated u nd e r total energy constraint in [13]. In binary2During ... first inequality in (76) and t he second inequality in (77) are satisfied. From the conditionf(θ)(θ − Φ) < 0, it is not hard to find that the second inequality in (76) and the first inequality in...
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Báo cáo toán học: " A virtual infrastructure based on honeycomb tessellation for data dissemination in multi-sink mobile wireless sensor networks" pot
... multi-sink WSN in which the deployment ofsensors is performed in a random fashion, e.g., dropping sensors from helicoptersflying above the field [4]. As shown in Figure 1, in this mobile multi-sink ... diffusion [5] is a flooding-based approach introducing data-centricrouting for sensor networks. In this approach, each sink must periodically floodits location information through the sensor field. This ... line (i.e.,line r) as sink. In Figure 6, where both the sink and the node E are located onthe line s, node E in cell [2, 0] forwards the packet to the cell [4, 1] according tothe rule in line...
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Báo cáo hóa học: "Energy consumption and lifetime analysis in clustered multi-hop wireless sensor networks using the probabilistic cluster-head selection method" pdf
... wireless sensor networks, in Proceedings ofIEEE WoWMoM, Kos, Greece, 15–19 (June 2009)11. J Choi, C Lee, Energy modeling inside a cluster for the multi-hop clustered sensor networks, in Proceedings ... models in determiningthe optimal probability of being a cluster-head, thusminimizing the energy consumed in the network. Theoptimal probability p*obtainedfromtheNewtonmethod is provided in Table ... lifetime analysis in clustered multi-hop wireless sensor networks using the probabilistic cluster-head selectionmethodJinchul Choi and Chaewoo Lee*AbstractClustering sensor nodes into groups is...
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