Masters Theses

Abstract

"Recent technological advances have seen wireless sensor networks emerge as an interesting research topic because of its ability to realize mission critical applications like in military or wildfire detection. The first part of the thesis focuses on the development of a novel communication scheme referred here as a distributed wireless critical information-aware maintenance network (DWCIMN), which is presented for preventive maintenance of network-centric dynamic systems. The proposed communication scheme addresses quality of service (QoS) issues by using a combination of a head-of-the-line queuing scheme, efficient bandwidth allocation, weight-based backoff mechanism, and a distributed power control scheme. A thorough analysis of a head-of-the-line priority queuing scheme is given for a single-server, finite queue with a batch arrival option and user priorities. The scheme is implemented in the Network Simulator (NS-2), and the results demonstrate reduced queuing delays and efficient bandwidth allocation for time-critical data over non time critical data. In the second part, we introduce a unique mobility verification problem in wireless sensor networks wherein the objective is to verify the "claimed" mobility path of a node in a co-operating mission critical operation between two allies. We address this problem by developing an efficient power-control based mobility verification model. The simulation framework is implemented in Matlab and the results indicate successful detection of altered claimed paths within a certain error bound"--Abstract, page iii.

Advisor(s)

Miller, Ann K.

Committee Member(s)

Chellappan, Sriram
Dagli, Cihan H., 1949-

Department(s)

Engineering Management and Systems Engineering

Degree Name

M.S. in Systems Engineering

Publisher

Missouri University of Science and Technology

Publication Date

Spring 2009

Pagination

x, 78 pages

Note about bibliography

Includes bibliographical references (pages 76-77).

Rights

© 2009 Maheswaran Thiagarajan, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Subject Headings

Sensor networks -- Design
Wireless communication systems -- Design

Thesis Number

T 9498

Print OCLC #

436148113

Electronic OCLC #

318901799

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