Báo cáo hóa học: " Research Article Tree Based Protocol for Key Management in Wireless Sensor Networks" pptx

... Corporation EURASIP Journal on Wireless Communications and Networking Volume 2010, Article ID 910695, 10 pages doi:10.1155/2010/910695 Research Article TreeBasedProtocolforKeyManagementin Wireless Sensor Networks M ... the hardest attack: node compromising. 3. STKM: A Spanning Tree- Based Key Management Solution for WSNs In this section, we describe a new key managem...

Ngày tải lên: 21/06/2014, 11:20

... s/2.Asonecansee,forhighvaluesof p, 10 EURASIP Journal on Wireless Communications and Networking for increasing variability of the communication link quality (i.e., for increasing values of η c ) the performance ... surrounding this area: in the example in Figure 1(a) there are six sensors. (In the remainder of this paper, by sensor we will denote the wireless transceiver which i...

Ngày tải lên: 21/06/2014, 17:20

... various applications [1]. Localization information in WSNs is an enabling technology since sensor nodes deployed in an area, in general, require position information for routing, energy management, and application-specific ... the paper in Section 5. 2. TOA -BASED RANGING IN INDOOR MULTIPATH ENVIRONMENTS 2.1. Ranging coverage One of the major factors determining the quality of...

Ngày tải lên: 22/06/2014, 06:20

... to zero in chains 2 and 4, whereas other chains attain higher throughput than the mean. In contrast, this severe unfairness among the saturated chains decreases in Channel MAC by maintaining the ... on Advances in Signal Processing Volume 2009, Article ID 368209, 17 pages doi:10.1155/2009/368209 Research Article Channel MAC Protocol for Opportunistic Communication in Ad Ho...

Ngày tải lên: 21/06/2014, 22:20

... dark arrows indicate links that are included into thetreeinsearch phases and the lig h t arrows indicate the links that are included into the tree in grow phases.) Finally, it remains to show ... w vu in the min-max tree formation is in an increasing order and the final one in the sequence is equal to δ min . (6) After the multicast members are all in the tree, all re- dundant l...

Ngày tải lên: 22/06/2014, 22:20

... fuses information from inertial sensors with information from a vision system based on a passive monocular video camera. The vision system replaces the GPS signal combining position information ... concept. The sensor fusion architecture developed combines vision -based information together with inertial information in an original way resulting in a light weight system with real-time...

Ngày tải lên: 21/06/2014, 20:20

... predictors in PowerPC MVs S2: obtain min MV cost and perform mode decision in PowerPC min MV, min SAD cost, blocktype and base address S3: min MV, min SAD cost and address in IP core min MV, min SAD ... percentage time savings t for ME calculation, according to t =  1 − 1 r  × 100, (6) where r are the data points in Table 3. The percentage time savings obtained are displayed in...

Ngày tải lên: 21/06/2014, 20:20

... programming approach to NLOS error mitigation in sensor networks,” in Proceedings of the 5th International Conference on Informa- tion Processing in Sensor Networks (IPSN ’06), pp. 301–308, Nashville, ... Article Range -Based Localization for UWB Sensor Networks in Realistic Environments Guowei Shen, Rudolf Zetik, Ole Hirsch, and Reiner S. Thom ¨ a Department of Electrical...

Ngày tải lên: 21/06/2014, 23:20

... example for the proposed algorithm is shown in Figure 2. A row-crossing edgy part is used to illus- trate the main steps. The dashed lines in the graphs indicate the original values for the blue ... described in more detail in the following subsections. 2.1. Initial interpolation As stated above, interpolation of the initial green values is an essential step. We use a modified edge...

Ngày tải lên: 22/06/2014, 19:20

... that the performance of the Chan-Ho (CH) method—especially in the most interest- ing case of N BS = 3—is considerably worse. We are also interested in CDFs for investigating the per- formance of ... (PDFs). For ex- ample, in a decoding scenario of Hamming codes, the factor nodes describe the parity check constraints and the messages passed in the FG consist of the extrinsic soft i...

Ngày tải lên: 22/06/2014, 20:20