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Sensor Relocation With Mobile Sensors: Design, Implementation, and Evaluation
White Papers This paper presents a mobile sensor prototype in which the Mica2 sensor node is used to control the movement of the robot built with Commercial Off-The-Shelf (COTS) components. The authors use a sensor relocation application to demonstrate the...
[August 10, 2007, 10:59]
Sensor-on-a-chip scans prints in an instant
News The EntréPad sensor is low power and robust, and the company says it is suitable for cellphone and PDA use as well as fixed installations. The sensor works by detecting the pattern of living cells beneath the dead epidermis.
[November 6, 2001, 16:11]
Photos: Sensor telemetry
News Accenture is "working on how to embed intelligence in common objects" using "sensor telemetry" — a combination of sensor and RFID technologies that can be used to gather information. A light sensor can tell you if a door's been opened," which is...
[March 30, 2006, 14:45]
Lightweight Detection and Classification for Wireless Sensor Networks in Realistic Environments
White Papers A wide variety of sensors have been incorporated into a spectrum of Wireless Sensor Network (WSN) platforms, providing flexible sensing capability over a large number of low-power and inexpensive nodes.
[August 25, 2007, 1:00]
Lifetime-Optimal Data Routing in Wireless Sensor Networks Without Flow Splitting
White Papers This paper considers two-tiered wireless sensor networks, and addresses the network lifetime problem for upper-tier Aggregation and Forwarding Nodes (AFNs). Existing flow routing solutions proposed for maximizing network lifetime require AFNs to...
[August 23, 2007, 1:00]
Collaborative Signal Reinforcement in Sensor Networks
White Papers Sensor networks can be used for various application areas such as health, military, and home. Research in collaborative methods and wireless communication has enabled the development of sensor networks.
[August 23, 2007, 1:00]
Event-Driven Sensor Deployment Using Self Organizing Maps
White Papers Coverage is an important optimization objective in pre- and post-deployment stage of a wireless sensor network. This paper addresses the issue of placing a finite set of sensors to cover an area of arbitrary geometry.
[August 23, 2007, 1:00]
Efficient and Density-Aware Routing for Wireless Sensor Networks
White Papers This paper presents a novel addressing and routing scheme for wireless sensor networks. The base of the approach on the observation that in real applications, sensors are usually deployed in groups; while it is impractical to predict the landing...
[August 25, 2007, 1:00]
Achieving Real-Time Target Tracking Using Wireless Sensor Networks
White Papers Target tracking systems, consisting of thousands of low-cost sensor nodes, have been used in many application domains such as battlefield surveillance, wildlife monitoring and border security. The work discussed in this paper presents the real-time...
[August 25, 2007, 1:00]
Efficiency Centric Communication Model for Wireless Sensor Networks
White Papers Recent studies on radio reality provided strong evidence that radio links between low-power sensor devices are extremely unreliable. This paper studies how to improve energy efficiency for reliable communication using such unreliable links.
[August 25, 2007, 1:00]
Localization for Mobile Sensor Networks
White Papers Many sensor network applications require location awareness, but it is often too expensive to include a GPS receiver in a sensor network node. Hence, localization schemes for sensor networks typically use a small number of seed nodes that know...
[August 23, 2007, 1:00]
The Virtual Node Layer: A Programming Abstraction for Wireless Sensor Networks
White Papers This simplifies the design and rigorous analysis of applications for the wireless sensor network setting, as the layer can mask much of the uncertainty of the underlying components. The Virtual Node Layer (VNLayer) programming abstraction provides...
[August 23, 2007, 1:00]
Angle of Arrival Localization for Wireless Sensor Networks
White Papers Awareness of the physical location for each node is required by many wireless sensor network applications. The discovery of the position can be realized utilizing range measurements including received signal strength, time of arrival, time...
[April 23, 2009, 1:24]
Detection of Denial-of-Message Attacks on Sensor Network Broadcasts
White Papers So far, sensor network broadcast protocols assume a trustworthy environment. However, in safety and mission-critical sensor networks this assumption may not be valid and some sensor nodes might be adversarial.
[June 24, 2009, 16:02]
Survey of Wireless Sensor Network Security
White Papers Wireless sensor networks have a wide variety of applications including environmental monitoring, habitat monitoring, security, and defense monitoring just to name a few. This wide variety of applications presents a corresponding variety of security...
[October 5, 2009, 0:00]
Energy Efficiency in Wireless Sensor Networks: A Utility-Based Architecture
White Papers Wireless Sensor Networks (WSN) comprises a fast-developing research area with a vast spectrum of applications. A WSN design is influenced by many factors such as transmission errors, network topology and power consumption.
[April 23, 2009, 1:24]
Nokia Intrusion Prevention Solution: IP390 Sensor Performance
White Papers This paper details the performance of the Nokia IP390 Intrusion Prevention Sensor (IPS). The paper explains the benchmark used to characterize Nokia IP390 sensor performance and provides the performance details.
[March 1, 2007, 0:00]
LEDS: Providing Location-Aware End-to-End Data Security in Wireless Sensor Networks
White Papers Providing end-to-end data security, i.e.data confidentiality, authenticity, and availability, in Wireless Sensor Networks (WSNs) is a non-trivial task. In addition to the large number and severe resource constraint of sensor nodes, a particular...
[October 7, 2008, 1:01]
Designing Energy-Efficient Wireless Sensor Networks With Mobile Sinks
White Papers Mobile enable Wireless Sensor Network (mWSN) has been proposed to realize large-scale information gathering via networking wireless sensors and mobile sinks. Sink velocity should be carefully chosen, in order to make a compromise between sink...
[April 23, 2009, 1:24]
A Proactive Data Security Framework for Mission-Critical Sensor Networks
White Papers The resource-constrained sensors in mission-critical applications are subject to both random failures and intentional compromise by the adversary, which poses severe security threats in Wireless Sensor Networks (WSNs).
[October 7, 2008, 1:01]
