Lifetime analysis for wireless sensor networks

Download

index.pdf

Date

2004

Author

Öğünlü, Bilal

Metadata

Show full item record

Item Usage Stats

226
views

86
downloads

Sensor technologies are vital today in gathering information about certain environments and wireless sensor networks are getting more widespread use everyday. These networks are characterized by a number of sensor nodes deployed in the field for the observation of some phenomena. Due to the limited battery capacity in sensor nodes, energy efficiency is a major and challenging problem in such power-constrained networks. Some of the network design parameters have a direct impact on the network̕s lifetime. These parameters have to be chosen in such a way that the network use its energy resources efficiently. This thesis studies these parameters that should be selected according to certain trade offs with respect to the network̕s lifetime. In this work, these trade offs have been investigated and illustrated in detail in various combinations. To achieve this goal, a special simulation tool has been designed and implemented in this work that helps in analyzing the effects of the selected parameters on sensor network̕s lifetime. OMNeT++, a discrete event simulator, provides the framework for the sensor network simulator̕s development. Ultimately, results of extensive computational tests are presented, which may be helpful in guiding the sensor network designers in optimally selecting the network parameters for prolonged lifetime.

Subject Keywords

Electrical engineering., Electronics., Nuclear engineering.

URI

http://etd.lib.metu.edu.tr/upload/12605226/index.pdf
https://hdl.handle.net/11511/14493

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Vanadium oxide (VOx) thin films elaborated by sol-gel method for microbolometer applications Karslı, Kadir; Akın, Tayfun; Durucan, Caner; Department of Micro and Nanotechnology (2012) Infrared detector technologies have been developing each day. Thermal detectors take great attention in commercial applications due to their low power consumption and low costs. The active material selection and the deposition of the material are highly important performance effective factors for microbolometer detector applications. In that sense, developing vanadium oxide (VOx) microbolometer active material by sol-gel method might be feasible approach to achieve good performance microbolometer detectors....
Collaborative mobile target imaging in ultra-wideband wireless radar sensor networks Arık, Muharrem; Akan, Özgür Barış; Department of Electrical and Electronics Engineering (2008) Wireless sensor networks (WSN) have thus far been used for detection and tracking of static and mobile targets for surveillance and security applications. However, detection and tracking do not suffice for a complete satisfaction of these applications and an accurate target classification. To address this need, among various target classification methods, imaging of target yields the most valuable information. Nevertheless, imaging of mobile targets moving over an area requires networked and collaborative d...
Visual detection and tracking of moving objects Ergezer, Hamza; Leblebicioğlu, Mehmet Kemal; Department of Electrical and Electronics Engineering (2007) In this study, primary steps of a visual surveillance system are presented: moving object detection and tracking of these moving objects. Background subtraction has been performed to detect the moving objects in the video, which has been taken from a static camera. Four methods, frame differencing, running (moving) average, eigenbackground subtraction and mixture of Gaussians, have been used in the background subtraction process. After background subtraction, using some additional operations, such as morpho...
Advanced readout and control electronics for mems gyroscopes Temiz, Yüksel; Akın, Tayfun; Department of Electrical and Electronics Engineering (2007) This thesis reports the development of advanced readout and control electronics for MEMS gyroscopes developed at METU. These gyroscope electronics are separated into three main groups: high sensitive interface circuits, drive mode amplitude controlled self oscillation loops, and sense mode phase sensitive amplitude demodulators. The proposed circuits are first implemented with discrete components, and then integrated on CMOS chips. A self oscillation loop enabling constant amplitude drive mode vibrations in...
Localization in underwater acoustic sensor networks Işık, Mehmet Talha; Akan, Özgür Barış; Department of Electrical and Electronics Engineering (2007) Underwater Acoustic Sensor Networks (UW-ASNs) have the potential to enable many applications such as environmental monitoring, undersea exploration and distributed tactical surveillance. In order to realize the potential gains of these applications, it is essential that the sensor nodes can be accurately located in a three dimensional underwater sensor network topology. Although many localization protocols have been proposed recently for terrestrial sensor networks, the unique characteristics of the underwa...

Citation Formats

B. Öğünlü, “Lifetime analysis for wireless sensor networks,” M.S. - Master of Science, Middle East Technical University, 2004.