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Energy Reduction in LTE Access Network Operation and Planning

Akavipat, Sira (2016) Energy Reduction in LTE Access Network Operation and Planning. Doctoral Dissertation, University of Pittsburgh. (Unpublished)

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Energy consumption in cellular networks is increasingly a concern, due to the rapid growing demand for mobile communications, the necessity of adding new base stations will continue to grow as well as the amount of energy needed to operate the network. This dissertation presents two algorithms to manage the increasing service demand and create possibilities for energy reduction. The novel cell selection algorithms are bandwidth-based (BB) and energy- aware (EA) cell selection. BB balances traffic between two tiers of a LTE heterogeneous network (HetNet) and offloads traffic from high-powered base stations. EA considers the potential energy requirement to serve users and enables turning off base stations during quiet hours. Also, this thesis shows two energy optimization models to minimize the amount of energy consumption in operating LTE HetNets while maintaining levels of customer satisfaction. First, step-dimming (SD) energy reduction technique reduces the transmission power of high-powered base stations according to the levels of traffic demand. Second, resource-based (RE) energy reduction optimization minimizes the spectrum resources required to achieve user service demand level according to the user channel quality indicator (CQI). Last, this dissertation studies benefits of the proposed algorithms in a minimum CAPEX LTE access network in a sample city-like area with time and spatial varying traffic demand.


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Item Type: University of Pittsburgh ETD
Status: Unpublished
CreatorsEmailPitt UsernameORCID
Akavipat, Sirasia10@pitt.eduSIA10
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Thesis AdvisorTipper, Davidtipper@tele.pitt.eduDTIPPER
Committee MemberPelechrinis, Konstantinoskpele@pitt.eduKPELE
Committee MemberPalanisamy, Balajibpalan@pitt.eduBPALAN
Committee MemberChilders, Brucechilders@cs.pitt.eduCHILDERS
Date: 13 January 2016
Date Type: Publication
Defense Date: 17 November 2015
Approval Date: 13 January 2016
Submission Date: 17 December 2015
Access Restriction: 1 year -- Restrict access to University of Pittsburgh for a period of 1 year.
Number of Pages: 140
Institution: University of Pittsburgh
Schools and Programs: School of Information Sciences > Telecommunications
Degree: PhD - Doctor of Philosophy
Thesis Type: Doctoral Dissertation
Refereed: Yes
Uncontrolled Keywords: Energy Reduction, HetNet, LTE, Cell Selection
Date Deposited: 13 Jan 2016 16:17
Last Modified: 13 Jan 2017 06:15


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