coverage problems in wireless adhoc sensor networks pdf

... sacrifices for disseminating keying information to worker sensors in the vicinity. Worker sensors are in charge of normal network operations such as sensing and reporting. Two worker sensors can derive ... pre-distribution scheme using deployment knowledge for wireless sensor networks, ” in Proceedings of the 4th International Symposium on Information Processing in Sensor Networks (IPSN ’05), pp. ... Wang, and P. Ning, “An efficient scheme for authenticating public keys in sensor networks, ” in Proceedings of the 6th ACM International Symposium on Mobile Ad Hoc Networking and Computing (MOBIHOC...

Ngày tải lên: 21/06/2014, 20:20

... Washington, 1279–1284 (November 2007) 23. D Ma, MJ Er, B Wang, HB Lim, K-hop statistics in wireless sensor networks, in Proc International Conference on Intelligent Sensors, Sensor Networks and Information ... localization in wireless sensor networks Deyun Gao 1 , Ping Chen 2 , Chuan Heng Foh 3* and Yanchao Niu 1 Abstract In wireless sensor networks (WSNs), location information plays an imp ortant role in many ... Electronics and Information Engineering, Beijing Jiaotong University, Beijing 100044, PR China 2 TEDA College, Nankai University, Tianjin 300457, PR China 3 School of Computer Engineering, Nanyang...

Ngày tải lên: 20/06/2014, 22:20

Ngày tải lên: 22/06/2014, 01:20

Ngày tải lên: 22/06/2014, 22:20

Ngày tải lên: 23/06/2014, 00:20

Ngày tải lên: 27/06/2014, 00:20

... 85-95. 5. Shio Kumar Singh, M.P. Singh, and D.K. Singh, “Routing Protocols in Wireless Sensor Networks – A Survey” International Journal of Computer Science and Engineering Survey (IJCSES), ... Kumar Singh, M.P. Singh, and D.K. Singh, “Applications, Classifications, and Selections of Routing Protocols for Wireless Sensor Networks International Journal of Advanced Engineering Sciences ... Routing in Wireless Sensor Networks , International Journal of Advanced Networking and Application (IJANA), Sept.–Oct. 2010, vol. 02, issue 02, pp. 570–580. 3. Shio Kumar Singh, M.P. Singh,...

Ngày tải lên: 05/03/2014, 23:20

... moving back and forth between the two neighbouring wireless networks or in general around a corner that involves three or more wireless networks . This aspect in known in literature as ping-pong ... an incoming call requests, our CSR algorithm is used to find available resources in the WLAN by switching some 3G Joint Call Admission Control in Integrated Wireless LAN and 3G Cellular Networks ... corresponding to dynamic changes in link characteristics, link quality and link status. It acts all the instances to make event detection and notify, still maintaining the actual link connection...

Ngày tải lên: 19/06/2014, 19:20

... Access Localization in mobile wireless and sensor networks Monica Nicoli 1* , Sinan Gezici 2 , Zafer Sahinoglu 3 and Henk Wymeersch 4 Accurate localization or tracking of wireless de vices is ... robustness to NLOS errors, indoor positioning, and localization in wireless sensor networks (WSNs). The first group of articles deals with the interaction of positioning and communications at ... a very large database of RSS fingerprints. Machine learning techniques are employed to extract the location information from online RSS measurements showing promising performance for room-level...

Ngày tải lên: 20/06/2014, 21:20

... 802.15.4 wireless sensor networks Mu-Sheng Lin 1* , Jenq-Shiou Leu 1 , Wen-Chi Yu 1 , Min-Chieh Yu 1 and Jean-Lien C Wu 2 Abstract Multimedia services over resource constrained wireless sensor networks ... from source to sink node. It is the sum of delays at all links within the end-to-end path. The delay at an intermedi- ate node usually includes the following components: processing delay, queuing delay, ... A Zainaldin, I Lambadaris, B Nandy, Video over Wireless Zigbee Networks- Multi-Channel Multi-Radio Approach, in Wireless Communications and Mobile Computing Conference, 2008. IWCMC ‘08. International,...

Ngày tải lên: 20/06/2014, 22:20

Ngày tải lên: 22/06/2014, 06:20

Ngày tải lên: 22/06/2014, 19:20

Ngày tải lên: 23/06/2014, 00:20

Ngày tải lên: 23/06/2014, 00:20

Ngày tải lên: 14/08/2014, 14:20

... areas, sporting grounds including a ski slope, residential dormitories and houses, communal eating and social areas, and parts of the town in which the college is based, including some shopping areas, ... of a WLAN. In two studies, Yeo et al. [26,27] looked at the difficulties of conducting wireless- side measurement. To estimate the amount of loss incurred in wireless measurement, three wireless ... ACM SIGCOMM conference. They chose a polling interval of one minute. Such a short polling interval was possible because of the small number of APs involved in the study—there were only four APs...

Ngày tải lên: 20/01/2014, 01:21

Ngày tải lên: 20/01/2014, 01:21

... for sensor networks. In Mobile Computing and Networking, 2000. [6] J. M. Kahn, R. H. Katz, and K. S. J. Pister. Mobile networking for smart dust. In ACM/IEEE Intl. Conf. on Mobile Computing and ... Wendi Rabiner, and Hari Balakrishnan. Adaptive protocols for information dissemination in wireless sensor networks. In 5th ACM/IEEE Mobicom Conference, 1999. [9] Sam Madden, Michael J. Franklin, and ... results. 1 INTRODUCTION Improvements in wireless networking and micro-electro-mechanical systems (MEMS) are contributing to the formation of a new computing domain – distributed sensor networks. ...

Ngày tải lên: 14/02/2014, 16:20

... 28 Wireless networks: an introduction computing devices such as laptops in LANs, but is now increasingly used for other services, including Internet and voice over IP (VoIP) phone access, gaming, ... networks, adopting centralized solu- tions for optimizing performance may yield inefficient results owing to errors occurring during the complex information-gathering phase. In contrast, local informa- tion ... broadband networks: uplink power control in CDMAnetworks, resource allocation in OFDMA networks, power control in femtocell networks, IEEE 802.16 broadband wireless access, and vertical handover in...

Ngày tải lên: 16/03/2014, 20:20

... on joint call admission control in integrated wireless local area networks (WLAN) and cellular networks. Chapter 10 is devoted to studying near-optimal nonlinear forwarding strategies in two-hop ... st st IE θ θ θ θ θ θσ − = ⎧⎫ ∂ ∂ ⎪⎪ ⎛⎞ =− ∑ ⎨⎬ ⎜⎟ ∂ ∂ ⎝⎠ ⎪⎪ ⎩⎭ (16) Finally, the inverse recipocal of the Fisher‘s information produced by the CRLB in the AWGN channel. X Preface engineers to beginning or professional researchers. All interested ... (SCTP) in wireless communication networks. Chapter 13 investigates traffic control for composite wireless access route of IEEE802.11/16 links. Recent Advances in Wireless...

Ngày tải lên: 19/06/2014, 19:20