A clustering approach in sensor network time synchronization

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dc.contributor.advisor Hu, Fei
dc.contributor.advisor Lukowiak, Marcin
dc.contributor.advisor Kudithipudi, Dhireesha
dc.contributor.author Krishnaram, Ramesh
dc.date.accessioned 2012-11-13T17:07:09Z
dc.date.available 2012-11-13T17:07:09Z
dc.date.issued 2006-12
dc.identifier.uri http://hdl.handle.net/1850/15460
dc.description.abstract In recent years tremendous technological advances have led to the development of low-cost sensors capable of data processing activities. These sensor nodes are organized in to a network typically called wireless Sensor Network. WSN's are based on the principle of "Data Fusion" where the data collected from each sensor node is condensed into one meaningful result: Data Fusion is achieved by exchanging messages between the sensors. These messages are time stamped by each sensor node's local clock fuse reading. As noted in various references, Time Synchronization is a common feature used in networking in order to give the nodes a common time reference. Time Synchronization is an important middleware service in Wireless Sensor Networks, as physical time is needed to relate events to the physical world. WSN's require a great deal of synchronization accuracy so that information from many nodes can be cohesively integrated without creating time skews in the data. State-of-the-art research has been investigating the sources of error in attempting to synchronize the nodes in a network. The objective of this thesis is to define a Time Synchronization protocol for a Hierarchical Cluster Head based Wireless Sensor Network. Thus, the goals of this thesis are three fold: We first analyze the shortcomings of existing time synchronization protocols and propose a novel time synchronization protocol based on cluster tree based routing. We perform hardware-based simulation using Mica motes, TinyOS operating system and NesC programming language. Finally, we estimate the various sources of time error in package transmission in a WSN through basic simulation using OMNET++. en_US
dc.language.iso en_US en_US
dc.subject Computers en_US
dc.subject Data fusion en_US
dc.subject Data processing en_US
dc.subject Hierarchical cluster en_US
dc.subject Programming en_US
dc.subject Thesis en_US
dc.subject Time synchronization en_US
dc.subject Wireless sensor network en_US
dc.subject.lcc TK7872.D48 K74 2006
dc.subject.lcsh Wireless sensor networks--Computer simulation en_US
dc.subject.lcsh Wireless communication systems--Computer simulation en_US
dc.subject.lcsh Computer network protocols--Computer simulation en_US
dc.subject.lcsh Synchronization en_US
dc.title A clustering approach in sensor network time synchronization en_US
dc.type Thesis en_US
dc.description.college Kate Gleason College of Engineering en_US
dc.description.department Department of Computer Engineering en_US

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