Antenna selection for energy efficient mimo ofdm wireless systems
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Antenna selection for energy efficient mimo ofdm wireless systems
Antenna Selection for Energy-EfficientMIMO-OFDM Wireless SystemsA thesis submitted in partial fuinimenl of the requirements for the award of the degre Antenna selection for energy efficient mimo ofdm wireless systems eeDoctor of PhilosophyfromHIE UNIVERSITY OF vvOLI.ONGONGbyPhuc Ngoc LeBE. (2004) and ME. (2006) in Electronics & Telecommunications Engineering, Ho Chi Minh City University of Technology (IICMUT), VietnamUNIVERSITYOFWOLLONGONG (OilSchool of Electrical, Computer and Telecommunications Engineering Aus Antenna selection for energy efficient mimo ofdm wireless systems tralia, March 2015AbstractAbstractOrthogonal frequency division multiplexing (OFDM) and multi-input multi-output (M1MO) arc key techniques for high-spAntenna selection for energy efficient mimo ofdm wireless systems
eed wireless communications. Besides, there arc raising energy costs and carbon footprint associated with the operation of wireless networks. ConsequeAntenna Selection for Energy-EfficientMIMO-OFDM Wireless SystemsA thesis submitted in partial fuinimenl of the requirements for the award of the degre Antenna selection for energy efficient mimo ofdm wireless systems selection MlMO-Ol'DM systems from an energyefficiency perspective. The aim of the thesis is to propose and analyse novel antenna selection methods to improve the energy efficiency of the systems, lhe proposed methods include: /) adaptive antenna selection that jointly selects rhe number of active r Antenna selection for energy efficient mimo ofdm wireless systems adio frequency (R1) chains and antenna indices; it) power-amplifier’ aware antenna selection: and Hi) jointly optimising transmit power allocation andAntenna selection for energy efficient mimo ofdm wireless systems
antenna selection under quahly-of-scn ice (QoS) constraints.Firstly, this thesis analyses energy efficiency in MTMO-OFDM systems that deploy conventiAntenna Selection for Energy-EfficientMIMO-OFDM Wireless SystemsA thesis submitted in partial fuinimenl of the requirements for the award of the degre Antenna selection for energy efficient mimo ofdm wireless systems e selection method is proposed to improve energy efficiency, hl the adaptive scheme, the number of active RF chains and rhe antenna indices are jointly selected to attain maximum energy efficiency. This proposed scheme is shown to achieve a better energy efficiency-spectral efficiency (F.F-SF.) trad Antenna selection for energy efficient mimo ofdm wireless systems e-off compared to the existing selection schemes. Tn addition, the efficacy of power loading across subcarriers for improved energyefficiency in antenAntenna selection for energy efficient mimo ofdm wireless systems
na selection M1MO-OFDM systems is investigated.Secondly, this thesis considers energy efficiency of antenna selection M1MO-O1 DM systems from a power Antenna Selection for Energy-EfficientMIMO-OFDM Wireless SystemsA thesis submitted in partial fuinimenl of the requirements for the award of the degre Antenna selection for energy efficient mimo ofdm wireless systems ndependently for each subcarrier result in power unbalance across transmit antennas, which affects power amplifier. A constrained selection scheme that can equally allocate data subcarriers among antennas by means of linear optimisation is proposed for the systems with an arbitrary number of multipl Antenna selection for energy efficient mimo ofdm wireless systems exed data streams. Moreover, theAbstracteffectiveness of this scheme is analysed directly ill the nonlinear fading channels. Additionally, to overcomeAntenna selection for energy efficient mimo ofdm wireless systems
the issue of significant fluctuations of both the average power and peak power across transmit antennas, this thesis proposes and analyses a two-stepAntenna Selection for Energy-EfficientMIMO-OFDM Wireless SystemsA thesis submitted in partial fuinimenl of the requirements for the award of the degre Antenna selection for energy efficient mimo ofdm wireless systems roposed peak-power reduction using cross-antenna permutations. The results demonstrate that a significant improvement ill terms of energy efficiency could be achieved ill the proposed systems in comparison with the conventional systems.Lastly, this thesis investigates energy efficiency ill antenna s Antenna selection for energy efficient mimo ofdm wireless systems election M1MO systems under QoS constraints. Both antenna selection MTN'fO and antenna selection MĨM0 automatic repeal request (ARQ) schemes are consiAntenna selection for energy efficient mimo ofdm wireless systems
dered. Analytical expressions of the achieved energy efficiency in these systems over quasi-static Nakagami-m fading channels arc derived. Hie energy-Antenna Selection for Energy-EfficientMIMO-OFDM Wireless SystemsA thesis submitted in partial fuinimenl of the requirements for the award of the degre Antenna selection for energy efficient mimo ofdm wireless systems great significance to practical system designs. Based on a convexity analysis of the energy-efficiency expressions, the optimal average energy per transmitted symbol is determined such that the energy efficiency of rhe systems is maximised.iiDeclarationDeclarationI. Phuc Ngoc I.e. declare that this Antenna selection for energy efficient mimo ofdm wireless systems thesis, submitted in partial fulfilment of the requirements foi the award of Doctor of Pliilosophy. in the School of Electrical. Computer and TelecomAntenna selection for energy efficient mimo ofdm wireless systems
munications Engineering, University of Wollongong. IS wholly my own work unless otherwise referenced or acknowledged.Also, this thesis has not been suAntenna Selection for Energy-EfficientMIMO-OFDM Wireless SystemsA thesis submitted in partial fuinimenl of the requirements for the award of the degre Antenna selection for energy efficient mimo ofdm wireless systems express my gratitude to the Vietnamese Government's Project 322 for offering me an opportunity ro pursue rhe PhD degree in Australia. Being a recipient of this program is 111) personal honour, which has deepened my commitment to my research and made me stronger to overcome challenges on my journey t Antenna selection for energy efficient mimo ofdm wireless systems owards this thesis.I would like ro thank Dr r.e Chung Tran and Prof Farzad Safaei for giving me an opportunity to be a part of then research group. 1Antenna selection for energy efficient mimo ofdm wireless systems
acknowledge them for fruitful discussions, insightful comments on my research work, as well as then supports over the last few years.Antenna Selection for Energy-EfficientMIMO-OFDM Wireless SystemsA thesis submitted in partial fuinimenl of the requirements for the award of the degreAntenna Selection for Energy-EfficientMIMO-OFDM Wireless SystemsA thesis submitted in partial fuinimenl of the requirements for the award of the degreGọi ngay
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