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Structural Monitoring Using Wireless Sensors and Controller Area Network

whitepaper The contributions include: implementation of the PIC18f4680 platform in TinyOS, creating a message protocol over CAN, and developing a sensor board. The proposed application uses wireless sensors and the Controller Area Network (CAN) to provide...

Tags: monitoring systems

[08 Jan 2008]

Energy-Efficient TCP Operation in Wireless Sensor Networks

whitepaper This paper introduces and compares two approaches to support energy-efficient operation of TCP in sensor networks: Distributed TCP Caching (DTC) and TCP Support for Sensor networks (TSS). However, the high bit error rates in multi-hop sensor...

Tags: monitoring systems

[26 Dec 2007]

TCP Support for Sensor Networks

whitepaper We introduce an approach to support energy-efficient TCP operation in sensor networks. TCP would be useful for tasks, where reliable unicast is appropriate, but the high bit error rates in wireless sensor networks lead to energy inefficiencies...

Tags: monitoring systems

[26 Dec 2007]

Algorithm/Architecture Co-Exploration for Designing Energy Efficient Wireless Channel Estimator

whitepaper A Wireless Sensor Network (WSN) is comprised of motes which are resource constraint devices. Motes are battery operated and must conserve as much power as possible. Power usage for each mote is made up of processing data, sensing the surroundings...

Tags: mobile - wireless communications, node, processing, resource

[03 Sep 2007]

Energy-Efficient Scheduling for Wireless Sensor Networks

whitepaper This paper considers the problem of minimizing the energy needed for data fusion in a sensor network by varying the transmission times assigned to different sensor nodes. The optimal scheduling protocol is derived, based on which is develop a low...

Tags: monitoring systems, log, nodes, protocol

[31 Aug 2007]

A Cross-Layer Strategy for Energy-Efficient Reliable Delivery in Wireless Sensor Networks

whitepaper This paper investigates the problem of the lifetime maximization in wireless sensor networks under the constraint of end-to-end transmission success probability, by adopting a cross-layer strategy that considers physical layer (i.e.power control...

Tags: monitoring systems, layer, algorithm, sub

[31 Aug 2007]

Controlled Mobility for Efficient Data Gathering in Sensor Networks With Passively Mobile Nodes

whitepaper Since sensor nodes are often powered by limited energy sources, such as battery which may be difficult to replace, energy saving is an important criterion in any activity. A large class of sensor networks is used for data collection and aggregation...

Tags: monitoring systems, sensor, nodes, monitoring

[31 Aug 2007]

Energy-Balanced Routing in Wireless Sensor Networks Using Energy Welfare Metric

whitepaper Most routing algorithms for sensor networks focus on finding energy efficient paths to prolong the lifetime of sensor networks. Using this metric, the paper design the Maximum Energy Welfare Routing (MaxEW) algorithm, this achieves simultaneous...

Tags: network security, sensor, events, balance

[31 Aug 2007]

Distributed Energy-Adaptive Routing for Wireless Sensor Networks

whitepaper Most routing algorithms for sensor networks focus on finding energy efficient paths to prolong the lifetime of sensor networks. Therefore, ideally, routing algorithms should consider not only energy efficiency, but also the amount of energy...

Tags: network security, sensor, energy, algorithms

[31 Aug 2007]

An Energy-Efficient MAC Protocol for Underwater Wireless Acoustic Networks

whitepaper This protocol can be used for delay-tolerant applications such as underwater ecological sensor networks between energy-limited nodes. It is shown that under a realistic underwater sensor network scenario, the proposed MAC protocol wastes only 3...

Tags: scalability, energy, sensor, mac

[31 Aug 2007]

Sensor Relocation With Mobile Sensors: Design, Implementation, and Evaluation

whitepaper In the sensor relocation application, after a sensor node failure creates a coverage hole, a mobile sensor node is relocated to cover the hole in a timely and energy-efficient way. This paper presents a mobile sensor prototype in which the Mica2...

Tags: software engineering, coverage, node, sensor

[31 Aug 2007]

Time-Optimum Packet Scheduling for Many-to-One Routing in Wireless Sensor Networks

whitepaper With a few adjustments, it then shows that the algorithm also achieves time-optimum scheduling in heterogeneous scenarios, where each sensor reports a heterogeneous amount of data in each round. This paper presents a time-optimum and energy...

Tags: software engineering, heterogeneous, distributed, scheduling

[31 Aug 2007]

VigilNet: An Integrated Sensor Network System for Energy-Efficient Surveillance

whitepaper Because of the energy constraints of sensor devices, such systems necessitate an energy-aware design to ensure the longevity of surveillance missions. This paper describes one of the major efforts in the sensor network community to build an...

Tags: monitoring systems, sensor, surveillance, sensor network

[25 Aug 2007]

Adaptive Sensing for Environment Monitoring Using Wireless Sensor Networks

whitepaper This paper presents Adaptive Sensing, an energy-efficient topology configuration method for environment monitoring using densely deployed wireless sensor networks. Sensor data is collected at powerful macronodes periodically and a low-order model...

Tags: monitoring systems, adaptive, mode, sensor

[25 Aug 2007]

Design and Optimization of Distributed Sensing Coverage in Wireless Sensor Networks

whitepaper This paper proposes a surveillance service for sensor networks based on a distributed energy-efficient sensing coverage protocol. For many sensor network applications such as military surveillance, it is necessary to provide full sensing coverage...

Tags: monitoring systems, coverage, sensor, energy

[25 Aug 2007]

Efficient Coverage Algorithms for Wireless Sensor Networks

whitepaper One of the biggest disadvantages of large scale wireless sensor networks lies on the complexity of logistics involving selective replacement of sensors that have ran out of energy. Fortunately, efficient power management schemes provide some relief...

Tags: monitoring systems, scale, schemes, energy

[25 Aug 2007]

Achieving Real-Time Target Tracking Using Wireless Sensor Networks

whitepaper The work discussed in this paper presents the real-time design and analysis of VigilNet, a large-scale sensor network system which tracks, detects and classifies targets in a timely and energy efficient manner.

Tags: monitoring systems, sensor, targets, energy

[25 Aug 2007]

Lightweight Detection and Classification for Wireless Sensor Networks in Realistic Environments

whitepaper 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.

Tags: monitoring systems, cost effective, energy, sensor

[25 Aug 2007]

Benchmarking Block Ciphers for Wireless Sensor Networks

whitepaper The energy efficiency requirement of Wireless Sensor Networks (WSNs) is especially high because the sensor nodes are meant to operate without human intervention for a long period of time with little energy supply.

Tags: storage management, sensor, energy, block

[23 Aug 2007]

An Adaptive Mobility-Aware MAC Protocol for Sensor Networks (MS-MAC)

whitepaper Handling mobility in wireless sensor networks in an energy-efficient way is a new challenge. Most of the MAC protocols proposed for wireless sensor networks assume sensors to be stationary after deployment, which usually provide very bad network...

Tags: tcp - ip, sensor, mac, energy

[23 Aug 2007]

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