Listar por tema "Sensor networks"
Mostrando ítems 1-20 de 34
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Accurate, dynamic, and distributed localization of phenomena for mobile sensor networks
(2016)We present a robust, dynamic scheme for the automatic self-deployment and relocation of mobile sensor nodes (e.g., unmanned ground vehicles, robots) around areas where phenomena take place. Our scheme aims (i) to sense ... -
An area-based overlay architecture for scalable integration of sensor networks
(2010)With many different sensor networks being deployed, there will be an increased need to facilitate their uniform and efficient access at a large, perhaps even global, scale. To this end, we present an overlay-based architecture ... -
Asymptotically optimal policies for wireless networks with rechargeable batteries
(2008)We consider the problem of cross-layer resource allocation for single-hop, time-varying, wireless networks operating with rechargeable batteries under general arrival, channel and recharge processes. The objective is to ... -
Asynchronous sub-threshold ultra-low power processor
(2015)Ultra low power VLSI circuits may enable applications such as medical implants, sensor networks and things for IoT. Aggressive supply voltage scaling is known to significantly improve power consumption and efficiency, but ... -
A computationally efficient Bayesian framework for structural health monitoring using physics-based models
(2015)A Bayesian inference framework for structural damage identification is presented. Sophisticated structural identification methods, combining vibration information from the sensor network with the theoretical information ... -
Context-aware medical content adaptation through semantic representation and rules evaluation
(2008)Proper coding and transmission of medical and physiological data is a crucial issue for the effective deployment and performance of telemedicine services. The paper presents a platform for performing proper medical content ... -
The d-hop k-data coverage query problem in wireless sensor networks
(2008)The task of querying wireless sensor network (WSN) to retrieve data of interest is very significant and a wealth of query types have been proposed in the context of WSNs. This article describes the d-hop k-data coverage ... -
A demonstration of video over a user centric prioritization scheme for wireless LANs
(2008)Due to the unreliable nature of the wireless medium, provisioning of the Quality of Service (QoS) in wireless LANs is by far more complicated than in wired networks. In this demo we show the efficiency of a new QoS support ... -
EBC: A topology control algorithm for achieving high QoS in sensor networks
(2009)A novel approach for achieving high Quality of Service (QoS) in sensor networks via topology control is introduced and experimentally assessed in this paper. Our approach falls in the broader discipline of graph structural ... -
Energy-efficient distributed clustering in wireless sensor networks
(2010)The deployment of wireless sensor networks in many application areas requires self-organization of the network nodes into clusters. Clustering is a network management technique, since it creates a hierarchical structure ... -
EVERUN - Enabling power consumption monitoring in underwater networking platforms
(2017)The energy restricted nature of underwater sensor networks directly affects the expected lifetime of autonomous deployments and limits the capabilities for long term underwater monitoring. Towards the goal of developing ... -
Fatigue monitoring and remaining lifetime prognosis using operational vibration measurements
(2019)A framework is presented for real-time monitoring of fatigue damage accumulation and prognosis of the remaining lifetime at hotspot locations of new or existing structures by combining output-only vibration measurements ... -
Generalized indexing for energy-efficient access to partially ordered broadcast data in wireless networks
(2006)Energy conservation and access efficiency are two fundamental though competing goals in broadcast wireless networks. To tackle the energy penalty from sequential searching, the interleaving of index with data items has ... -
High performance, low complexity cooperative caching for Wireless Sensor Networks
(2009)During the last decade, Wireless Sensor Networks (WSNs) have emerged and matured at such point that currently support several applications like environment control, intelligent buildings, target tracking in battlefields, ... -
Input-state-parameter estimation of structural systems from limited output information
(2019)A successive Bayesian filtering framework for addressing the joint input-state-parameter estimation problem is proposed in this study. Following the notion of analytical, rather than hardware redundancy, the envisaged ... -
Lifetime maximization in wireless sensor networks with an estimation mission
(2009)We study the problem of maximum lifetime in wireless sensor networks that are entitled with the task of estimating an unknown parameter or process. Sensors take measurements and transfer them in multi-hop fashion to a ... -
Load balancing in wireless sensor networks using kirchhoff's voltage law
(2009)We study load balancing in wireless networks with a single class of traffic, focusing our attention on an important example, i.e., Wireless Sensor Networks. The analysis is based on the Wireless Minimum Cost Problem, an ... -
Measurement aggregation and routing techniques for energy-efficient estimation in wireless sensor networks
(2010)Wireless sensor networks are fundamentally different from other wireless networks due to energy constraints and spatial correlation among sensor measurements. Mechanisms that efficiently compress and transport sensor data ... -
Network coding and service reneging for real-time communication in sensor networks
(2010)In a number of application domains, the volatility of the environment where Wireless Sensor Networks (WSNs) should operate engenders time constraints on the generation, processing, and communication of sensory data. In ... -
New metrics for characterizing the significance of nodes in wireless networks via path-based neighborhood analysis
(2009)This paper considers the problem of finding the most central nodes in neighborhoods of a given network with directed or undirected links taking into account only local information.An algorithm that calculates ranking, ...