317 research outputs found
Jean Carle, Antoine Gallais, David Simplot-Ryl, Ivan Stojmenovic, Localized Sensor Area Coverage with Low Communication Overhead
No full textJ. Cartigny, D. Simplot, I. Stojmenovic, Localized minimum-energy broadcasting in ad hoc networks
No full textEnergy-Efficient Target Tracking in Sensor Networks
No full textIn this paper, the problem of collaborative tracking of mobile
nodes in wireless sensor networks is addressed. Aiming at an energy ef-
ficient solution, we propose a strategy of combining target tracking with
node selection procedures in order to select informative sensors to minimize
the energy consumption of the tracking task using the energy model
by Heinzelman, 2000. We layout a cluster-based architecture to address
the limitations in computational, battery power and communications of
the sensor devices. The node selection problem is formulated as a crosslayer
optimization problem that is solved using a greedy algorithm. To
track mobile nodes two particle filters are used: the bootstrap particle
filter and the unscented particle filter, both in the centralized and in
the distributed manner. Their performance are compared with the distributed
sigma-point information filter in literature, under two common
channel models: the log-normal shadowing and the Rayleigh fading.JRC.DG.G.6 - Security technology assessmen
Whole genome (A) bootscan and (B) simplot of HAdV-D53 compared to fully sequenced HAdV-D genomes.
No full text<p>Whole genome (A) bootscan and (B) simplot of HAdV-D53 compared to fully sequenced HAdV-D genomes.</p
A secure cross-layer protocol for multi-hop wireless body area networks
No full textThe development of Wireless Body Area Networks (WBANs) for wireless sensing and monitoring of a person's vital functions, is an enabler in providing better personal health care whilst enhancing the quality of life. A critical factor in the acceptance of WBANs is providing appropriate security and privacy protection of the wireless communication. This paper first describes a general health care platform and pinpoints the security challenges and requirements. Further it proposes and analyzes the CICADA-S protocol, a secure cross-layer protocol for WBANs. It is an extension of CICADA, which is a cross-layer protocol that handles both medium access and the routing of data in WBANs. The CICADA-S protocol is the first integrated solution that copes with threats that occur in this mobile medical monitoring scenario. It is shown that the integration of key management and secure, privacy preserving communication techniques within the ClCADA-S protocol has low impact on the power consumption and throughput
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