Πλοήγηση ανά Θέμα "Sensor nodes"
Αποτελέσματα 1-20 από 31
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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 ... -
Cross-layer energy-aware topology control through Simulated Annealing for WSNs
(2016)In this paper, we optimize the energy consumption and node placements of a wireless sensor network (WSN) using Simulated Annealing (SA). We propose an energy-aware optimization of the power control, the packet transmission ... -
Data collection from resource-limited wireless sensors for cloud-based applications
(2015)We consider a wireless sensor network (WSN) where each sensor node samples a random signal, places the digitized data in a buffer, and transmits the data to an access point (AP) through a wireless packet erasure communication ... -
Demo: Enabling asynchronous awakenings in wireless sensor networks towards removing duty-cycle barriers
(2017)Typical wireless sensor network applications follow duty-cycle mechanisms, yielding important energy savings by reducing the power consumption of idle listening. However, this approach still dictates predefined cycles of ... -
Demo: Nano power draw in duty-cycled wireless sensor networks
(2019)In this work we present a novel power management architecture for Wireless Sensor Network devices towards minimizing the power consumption when nodes remain in sleep state. Specifically, we propose the employment of an ... -
Detecting energy-efficient central nodes for cooperative caching in wireless sensor networks
(2013)The deployment of wireless sensor networks in many application areas like environment control, target tracking in battlefields, requires an optimization to the communication among the sensors so as to serve data in short ... -
Distributed Algorithms for the Operator Placement Problem
(2015)Operator placement plays a key role in reducing the aggregate network overhead within a wireless sensor network (WSN) to extend battery life and the longevity of the network. Consequently, optimal algorithms for the operator ... -
Energy-aware joint power, packet and topology optimization by simulated annealing for WSNs
(2013)Energy-aware connectivity in wireless sensor networks (WSNs) can increase their network lifetime. This can be achieved by optimizing the power control, a particular communication mechanism and the topology control. To this ... -
A framework for secure data delivery in wireless sensor networks
(2012)Typical sensor nodes are resource constrained devices containing user level applications, operating system components, and device drivers in a single address space, with no form of memory protection. A malicious user could ... -
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, ... -
The ICARUS Mote: Employing Off-Chip RTC to Attain 22 nA Sleep Current in Duty-Cycled IoT Devices
(2020)In this work we demonstrate the ICARUS mote, the first wireless sensor node that features the extremely-low sleep current of 22 nA. To achieve this, we employ an off-chip on-board Real-Time-Clock (RTC) circuit with an ... -
Improving application availability in wireless sensor networks with energy-harvesting capability
(2012)We assume a wireless sensor and actuator network with nodes that can harvest energy from the environment, and an application deployed in this network, which is structured as a set of cooperating mobile components that can ... -
An integrated chassis manager card platform featuring multiple sensor modules
(2012)The gradually growing demand for experimentation of protocols designed for wireless networks in real environments has resulted in the development of experimental network facilities (testbeds). Most currently deployed ... -
Introducing agent evictions to improve application placement in wireless distributed systems
(2012)With the development of mobile code frameworks for embedded systems, an application can be structured as a set of cooperating components (agents) that are placed on the nodes of the system in a flexible way. Reducing the ... -
Investigating Wireless Sensor Network lifetime under static routing with unequal energy distribution
(2012)In a Wireless Sensor Network (WSN) the sensed data must be gathered and transmitted to a base station where it is further processed by end users. Since that kind of network consists of low-power nodes with limited battery ... -
Middleware mechanisms for agent mobility in wireless sensor and actuator networks
(2012)This paper describes middleware-level support for agent mobility, targeted at hierarchically structured wireless sensor and actuator network applications. Agent mobility enables a dynamic deployment and adaptation of the ... -
Minimum weighted clustering algorithm for wireless sensor networks
(2015)Extending network lifetime is a primary design objective for a wireless sensor network (WSN). Efficient clustering among sensor nodes seems a promising solution to evenly balance energy consumption and thus extend node and ... -
Mobile agents rendezvous in spite of a malicious agent
(2015)We examine the problem of rendezvous, i.e., having multiple mobile agents gather in a single node of the network. Unlike previous studies, we need to achieve rendezvous in presence of a very powerful adversary, a malicious ... -
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 ...