Wireless Sensor Networks IAN F AKYILDIZ SERIES IN COMMUNICATIONS AND NETWORKING Series Editor: docx

... emerged for improved efficiency in networking wireless sensors. Wireless Sensor Networks Ian F. Akyildiz and Mehmet Can Vuran c  2010 John Wiley & Sons, Ltd viii Contents 3 Factors In uencing ... Data Akyildiz, Ian Fuat. Wireless sensor networks / Ian F. Akyildiz, Mehmet Can Vuran. p. cm. Includes bibliographical references and index. ISBN 978-0-470-0360...

Ngày tải lên: 20/06/2014, 23:20

... Such networks comprise of hundreds and sometimes thousands of self-functioning, low power, inexpensive wireless nodes to observe and influence the surroundings. Figure 1. Example of a Wireless ... types of topologies used for sensor networks include star, mesh, star-mesh etc. [2] In Wireless sensor networks there are two kinds of wireless nodes; sensor and bas...

Ngày tải lên: 05/03/2014, 23:20

... be constant. Let and be the buffer fullness levels at the end of th and 1 th reporting intervals, respectively, and be the buffer size as in Fig. 8. For a given sensor node, let be the buffer length increment observed ... Ken Byers Distinguished Chair Professor of the School of Electrical and Computer Engineering, and Director of the Broadband and Wireless Networking Labor...

Ngày tải lên: 16/03/2014, 19:20

... Ula 20 arcsin( ) c t d θ ∆ = (3.1) 0 2 2 sin( )AA AOA c T c BN N f σ π θ ≥ ∆ (3.2) Đồ án 2 Localization in the wireless sensor networks 1 [min(x +d ),min(y +d )] i i i i P = 2 [max(x -d ),min(y +d ... TOA 21 ( ) os2 T c x t A c f t π = (3.3) 2 2 0 T A A SNR BN = (3.4) 2 2 sin( ) AOA c c N f SNR σ π θ ≥ ∆ (3.5) Đồ án 2 Localization in the wireless sensor networ...

Ngày tải lên: 27/05/2014, 11:41

... uniformly distributed. Furthermore, since the estimation quality of the first stage is available, we use BLUE to obtain ˆ θ for exploiting the quality information instead of using the MLE in the ... networks optimal and suboptimal estimators Xin Wang ∗ 1 and Chenyang Yang 1 1 School of Electronics and Information Engineering, Beihang University, Beijing 100191, China Email: Xin Wang...

Ngày tải lên: 18/06/2014, 22:20

... complexity of the MLE is O(M 2 N 2 ). 18 1 Introduction Wireless sensor networks (WSNs) consist of a number of sensors deployed in a field to collect information, for example, measuring physical ... uniformly distributed. Furthermore, since the estimation quality of the first stage is available, we use BLUE to obtain ˆ θ for exploiting the quality information instead of using the MLE i...

Ngày tải lên: 20/06/2014, 04:20

... multi-sink WSN in which the deployment of sensors is performed in a random fashion, e.g., dropping sensors from helicopters flying above the field [4]. As shown in Figure 1, in this mobile multi-sink ... 1. In a border line, i.e., cells satisfying I = q · H, we have k = q. HexDD performs the forwarding of messages (data and query) following border lines and parallel directions to...

Ngày tải lên: 20/06/2014, 20:20

... Lee * Abstract Clustering sensor nodes into groups is an effective way of reducing the transmission of duplicated information in energy-constraint wireless sensor networks (WSNs). The performance of clustering ... modes, in Proceedings of IEEE WCNC, 3158–3163 (2007) 8. H Su, X Zhang, Energy-efficient clustering system model and reconfiguration schemes for wireless sensor ne...

Ngày tải lên: 20/06/2014, 22:20

... 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 Communications and Networking ... verification in wireless sensor networks, in Proc IEEE International Conference on Communications (ICC). 8, 3485–3490 (2006) 21. L Zhao, Q Liang, Hop-distance...

Ngày tải lên: 20/06/2014, 22:20

... Z. Wang, and X. F. Piao, “Routing protocol for wireless sensor networks in home automation,” in Proceedings of the 8th IFAC International Conference on Fieldbuses & neTworks in Industrial ... Self-Adaptive Routing Algorithm for Wireless Sensor Networks in Home Automation Xiao Hui Li, 1 Seung Ho Hong, 2 and Kang Ling Fang 1 1 College of Information Science and...

Ngày tải lên: 21/06/2014, 05:20