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On Proximity Based Sub-Area Localization

Korkmaz, Aylin (2011) On Proximity Based Sub-Area Localization. Doctoral Dissertation, University of Pittsburgh. (Unpublished)

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A localization system can save lives in the aftermath of an earthquake; position people or valuable assets during a fire in a building; or track airplanes besides many of its other attractive applications. Global Positioning System (GPS) is the most popular localization system, and it can provide 7-10 meters localization accuracy for outdoor users; however, it has certain drawbacks for indoor environments. Alternatively, wireless networks are becoming pervasive and have been densely deployed for communication of various types of devices indoors, exploiting them for the localization of people or other assets is a convenience. Proximity based localization that estimates locations based on closeness to known reference points, coupled with a widely deployed wireless technology, can reduce the cost and effort for localization in local and indoor areas. In this dissertation, we propose a proximity based localization algorithm that exploits knowledge of the overlapping coverages of known monitoring stations. We call this algorithm Sub-Area Localization (SAL). We present a systematic study of proximity-based localization by defining the factors and parameters that affect the localization performance in terms of metrics such as accuracy and efficiency. Then, we demonstrate that SAL can be used in multi-floor buildings to take advantage of the infrastructure elements deployed across floors to reduce the overall cost (in terms of the number of monitoring stations required) without harming accuracy. Finally, we present a case study of how SAL can be used for spatial spectrum detection in wireless cognitive networks.


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Item Type: University of Pittsburgh ETD
Status: Unpublished
CreatorsEmailPitt UsernameORCID
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Committee ChairKrishnamurthy, Prashantprashant@mail.sis.pitt.eduPRASHK
Committee MemberTipper, Daviddtipper@pitt.eduDTIPPER
Committee MemberPelechrinis, Konstantinoskpele@sis.pitt.eduKPELE
Committee MemberWeiss, Martin B. Hmbw@pitt.eduMBW
Committee MemberBulusu,
Date: 24 August 2011
Date Type: Completion
Defense Date: 20 July 2011
Approval Date: 24 August 2011
Submission Date: 16 August 2011
Access Restriction: 5 year -- Restrict access to University of Pittsburgh for a period of 5 years.
Institution: University of Pittsburgh
Schools and Programs: School of Information Sciences > Information Science
Degree: PhD - Doctor of Philosophy
Thesis Type: Doctoral Dissertation
Refereed: Yes
Uncontrolled Keywords: indoor; Localization; multi-floor; proximity
Other ID:, etd-08162011-051336
Date Deposited: 10 Nov 2011 19:59
Last Modified: 15 Nov 2016 13:49


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