Non-Uniform Grid-Based Coordinated Routing in Wireless Sensor Networks

Non-Uniform Grid-Based Coordinated Routing in Wireless Sensor Networks

Date: August 2008
Creator: Kadiyala, Priyanka
Description: Wireless sensor networks are ad hoc networks of tiny battery powered sensor nodes that can organize themselves to form self-organized networks and collect information regarding temperature, light, and pressure in an area. Though the applications of sensor networks are very promising, sensor nodes are limited in their capability due to many factors. The main limitation of these battery powered nodes is energy. Sensor networks are expected to work for long periods of time once deployed and it becomes important to conserve the battery life of the nodes to extend network lifetime. This work examines non-uniform grid-based routing protocol as an effort to minimize energy consumption in the network and extend network lifetime. The entire test area is divided into non-uniformly shaped grids. Fixed source and sink nodes with unlimited energy are placed in the network. Sensor nodes with full battery life are deployed uniformly and randomly in the field. The source node floods the network with only the coordinator node active in each grid and the other nodes sleeping. The sink node traces the same route back to the source node through the same coordinators. This process continues till a coordinator node runs out of energy, when new coordinator nodes ...
Contributing Partner: UNT Libraries
Stream Monitoring and Control Team

Stream Monitoring and Control Team

Date: 2013
Creator: Bunn, Zac; McEver, Mike; Seastrunk, Deliah; Fu, Shengli; Hoeinghaus, David & Gu, Yixing
Description: This presentation discusses research on multiple sensor clusters that monitor environmental health. The goal of the project was to create a series of sensor clusters, arranged into an array of nodes, that feeds key stream health data to an easily accessible database using an ad hoc wireless network.
Contributing Partner: UNT College of Engineering
Comparative Study of RSS-Based Collaborative Localization Methods in Wireless Sensor Networks

Comparative Study of RSS-Based Collaborative Localization Methods in Wireless Sensor Networks

Date: December 2006
Creator: Koneru, Avanthi
Description: In this thesis two collaborative localization techniques are studied: multidimensional scaling (MDS) and maximum likelihood estimator (MLE). A synthesis of a new location estimation method through a serial integration of these two techniques, such that an estimate is first obtained using MDS and then MLE is employed to fine-tune the MDS solution, was the subject of this research using various simulation and experimental studies. In the simulations, important issues including the effects of sensor node density, reference node density and different deployment strategies of reference nodes were addressed. In the experimental study, the path loss model of indoor environments is developed by determining the environment-specific parameters from the experimental measurement data. Then, the empirical path loss model is employed in the analysis and simulation study of the performance of collaborative localization techniques.
Contributing Partner: UNT Libraries
Nonuniform Grid-Based Coordinated Routing in Wireless Sensor Networks

Nonuniform Grid-Based Coordinated Routing in Wireless Sensor Networks

Date: 2009
Creator: Akl, Robert G.; Kadiyala, Priyanka & Haidar, Mohamad
Description: This article discusses nonuniform grid-based coordinated routing in wireless sensor networks.
Contributing Partner: UNT College of Engineering
Hybrid Approach for Energy-Aware Synchronization

Hybrid Approach for Energy-Aware Synchronization

Date: December 2010
Creator: Akl, Robert G.; Saravanos, Yanos & Haidar, Mohamad
Description: This book chapter discusses a time synchronization scheme for wireless sensor networks that aims to save sensor battery power while maintaining network connectivity for as long as possible.
Contributing Partner: UNT College of Engineering
Grid-based Coordinated Routing in Wireless Sensor Networks

Grid-based Coordinated Routing in Wireless Sensor Networks

Date: January 2007
Creator: Akl, Robert G. & Sawant, Uttara
Description: This paper discusses grid-based coordinated routing in wireless sensor networks and compares the energy available in the network over time for different grid sizes. The authors explore the quality of service of wireless sensor networks, how the coordinator nodes are elected, and the size of the grid area that will minimize the total energy consumption and extend the lifetime of the network.
Contributing Partner: UNT College of Engineering
Bringing real world applications for wireless sensor networks into the classroom: Telemetric monitoring of water quality in an artificial stream [2012: Poster]

Bringing real world applications for wireless sensor networks into the classroom: Telemetric monitoring of water quality in an artificial stream [2012: Poster]

Date: 2012
Creator: Bunn, Zac; Guerrero, Jose; Wolf, Lori; Fu, Shengli; Hoeinghaus, David; Driver, Luke et al.
Description: This poster discusses research on bringing real world applications for wireless sensor networks into the classroom and covers the use of a wireless sensor network (WSN) using the ZigBee protocol to remotely monitor an artificial aquatic ecosystem.
Contributing Partner: UNT College of Engineering
Demand Controlled Ventilation using CO2 Sensors in a Wireless Sensor Network [Poster]

Demand Controlled Ventilation using CO2 Sensors in a Wireless Sensor Network [Poster]

Date: 2013
Creator: Parsons, David; Jordan, Georgette; Li, Xinrong; Thompson, Ruthanne & Abraham, Sherin
Description: Poster presented as part of the 2013 Research Experiences for Teachers (RET) in Sensor Education, a National Science Foundation (NSF) funded grant project. This poster discusses research on demand controlled ventilation using CO₂ sensors in a wireless sensor network.
Contributing Partner: UNT College of Engineering
Demand Controlled Ventilation using CO₂ Sensors in a Wireless Sensor Network

Demand Controlled Ventilation using CO₂ Sensors in a Wireless Sensor Network

Date: 2013
Creator: Parsons, David; Jordan, Georgette; Li, Xinrong; Thompson, Ruthanne & Abraham, Sherin
Description: This report discusses research on demand controlled ventilation using CO₂ sensors in a wireless sensor network. The focus of this research project was to investigate Indoor Air Quality (IAQ) monitoring technologies, government regulations and policies, and best practices to improve IAQ. This research is part of Research Experiences for Teachers (RET) in Sensor Education, a National Science Foundation (NSF) funded grant project.
Contributing Partner: UNT College of Engineering
Bringing real world applications for wireless sensor networks into the classroom: Telemetric monitoring of water quality in an artificial stream [2012]

Bringing real world applications for wireless sensor networks into the classroom: Telemetric monitoring of water quality in an artificial stream [2012]

Date: 2012
Creator: Bunn, Zac; Guerrero, Jose; Wolf, Lori; Fu, Shengli; Hoeinghaus, David; Driver, Luke et al.
Description: This report discusses research on aquatic sensors and telemetric monitoring of water quality in an artificial stream with the use of a wireless sensor networks (WSN) using the ZigBee protocol to remotely monitor an artificial aquatic ecosystem. This research is part of Research Experiences for Teachers (RET) in Sensor Education, a National Science Foundation (NSF) funded grant project.
Contributing Partner: UNT College of Engineering
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