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Energy Efficient Security Framework for Wireless Local Area Networks

Kiratiwintakorn, Phongsak (2005) Energy Efficient Security Framework for Wireless Local Area Networks. Doctoral Dissertation, University of Pittsburgh. (Unpublished)

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Wireless networks are susceptible to network attacks due to their inherentvulnerabilities. The radio signal used in wireless transmission canarbitrarily propagate through walls and windows; thus a wireless networkperimeter is not exactly known. This leads them to be more vulnerable toattacks such as eavesdropping, message interception and modifications comparedto wired-line networks. Security services have been used as countermeasures toprevent such attacks, but they are used at the expense of resources that arescarce especially, where wireless devices have a very limited power budget.Hence, there is a need to provide security services that are energy efficient.In this dissertation, we propose an energy efficient security framework. Theframework aims at providing security services that take into account energyconsumption. We suggest three approaches to reduce the energy consumption ofsecurity protocols: replacement of standard security protocol primitives thatconsume high energy while maintaining the same security level, modification ofstandard security protocols appropriately, and a totally new design ofsecurity protocol where energy efficiency is the main focus. From ourobservation and study, we hypothesize that a higher level of energy savings isachievable if security services are provided in an adjustable manner. Wepropose an example tunable security or TuneSec system, which allows areasonably fine-grained security tuning to provide security services at thewireless link level in an adjustable manner.We apply the framework to several standard security protocols in wirelesslocal area networks and also evaluate their energy consumption performance.The first and second methods show improvements of up to 70% and 57% inenergy consumption compared to plain standard security protocols,respectively. The standard protocols can only offer fixed-level securityservices, and the methods applied do not change the security level. The thirdmethod shows further improvement compared to fixed-level security by reducing(about 6% to 40%) the energy consumed. This amount of energy saving can bevaried depending on the configuration and security requirements.


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Item Type: University of Pittsburgh ETD
Status: Unpublished
CreatorsEmailPitt UsernameORCID
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Committee ChairKrishnamurthy, Prashantprashant@sis.pitt.eduPRASHK
Committee MemberMosse, Danielmosse@cs.pitt.eduMOSSE
Committee MemberJoshi, James B Djjoshi@sis.pitt.eduJJOSHI
Committee MemberThompson, Richardthompson@sis.pitt.eduRTHOMPSO
Committee MemberBanerjee,
Date: 28 July 2005
Date Type: Completion
Defense Date: 15 April 2005
Approval Date: 28 July 2005
Submission Date: 5 April 2005
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
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: cryptography; energy efficiency; network security; security robustness; wireless network security; tunable security
Other ID:, etd-04052005-141245
Date Deposited: 10 Nov 2011 19:34
Last Modified: 15 Nov 2016 13:38


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