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Tesis sobre el tema "Partial CSIT"

Autor: Grafiati
Publicado: 25 de mayo de 2024
Última modificación: 31 de julio de 2025

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1

Ghamnia, Imène. "Rate balancing methods for multi-user MIMO systems with perfect or partial CSIT." Electronic Thesis or Diss., Sorbonne université, 2021. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2021SORUS234.pdf.

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Avec la progression de l'utilisation des smartphones, les modèles de systèmes ont rapidement évolué pour répondre aux besoins croissants en terme de capacité dans les réseaux sans fil. En effet, les progrès technologiques ont été considérables, depuis les communications point à point mono-utilisateur et mono-antenne jusqu'aux réseaux cellulaires multi-cellules et multi-antennes. Depuis la 3G, la technologie MIMO (multiple-input multiple-output) pour les communications sans fil est désormais intégrée aux normes de la large bande sans fil. L'ajout de plusieurs antennes, tant du côté de l'émetteu
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2

Engelmann, Sabrina, Zuleita K. M. Ho, and Eduard A. Jorswieck. "Interference Leakage Neutralization in Two-Hop Wiretap Channels with Partial CSI." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-128438.

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In this paper, we analyze the four-node relay wiretap channel, where the relay performs amplify-and-forward. There is no direct link between transmitter and receiver available. The transmitter has multiple antennas, which assist in securing the transmission over both phases. In case of full channel state information (CSI), the transmitter can apply information leakage neutralization in order to prevent the eavesdropper from obtaining any information about the signal sent. This gets more challenging, if the transmitter has only an outdated estimate of the channel from the relay to the eavesdrop
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3

Soysal, Alkan. "Optimum transmit strategies for Gaussian multi-user MIMO systems with partial CSI and noisy channel estimation." College Park, Md.: University of Maryland, 2008. http://hdl.handle.net/1903/7859.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2008.<br>Thesis research directed by: Dept. of Electrical and Computer Engineering . Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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4

Boostanimehr, Hamidreza. "Selective subcarrier pairing and power allocation for decode-and-forward OFDM relay systems with perfect and partial CSI." Thesis, University of British Columbia, 2010. http://hdl.handle.net/2429/28119.

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This thesis investigates a decode-and-forward two-hop relaying system consisting of one source, one relay and one destination, in which orthogonal frequency division multiplexing is used. The relay forwards the message received from the source on a subset of available subcarriers in the second time slot. Firstly, a subcarrier pairing and selection algorithm is proposed, assuming that perfect channel state information (CSI) is available at all nodes, then, power is allocated to both the source and relay stations under individual power constraints in order to maximize the capacity. Secondly, sub
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5

Prosin, Tobias. "Development of a CST system based on a solid particle receiver, optimised for commercialisation in the Australian market." Thesis, Prosin, Tobias (2017) Development of a CST system based on a solid particle receiver, optimised for commercialisation in the Australian market. PhD thesis, Murdoch University, 2017. https://researchrepository.murdoch.edu.au/id/eprint/38954/.

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This thesis explores a recently developed concentrated solar thermal (CST) central receiver technology, known as the solid particle receiver (SPR). Calculations of long and near term thermo-economic competitiveness for promising potential applications were preformed, for the first time within the Australian context. With these results, the most suitable SPR technology configurations and technical developments, required to reach the commercial potential, were identified. An innovative simulation tool which included a variety of different thermodynamic and economic models, was developed to co
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6

Hägg, Martin. "Theoretical analysis and simulation of microwave-generation from a coaxial vircator." Thesis, Uppsala universitet, Fasta tillståndets elektronik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-316595.

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High-power microwave, HPM, systems can be used as non-lethal weapons with the ability to destroy or disturb electronics, by damaging internal circuits and inducing high currents. Today microwave sources are being developed with peak powers exceeding 1 GW, one of these devices is the vircator, a narrowband source which is unique to the HPM community. In order to understand and develop microwave sources like the vircator it is necessary to have computer models, as simulations gives an invaluable understanding of the mechanisms involved during operation, saving time and development costs.        
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7

Deniz, Muhammed. "Measurement Of Sm Electro-weak Parameters In Reactor Antineutrino-electron Scattering In Texono Experiment." Phd thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608386/index.pdf.

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In this thesis a search for electron type neutrino-electron scattering cross-section and Weinberg Angle measurements were performed at KS Nuclear Power Station with 200 kg CsI(Tl) scintillating crystal detector located at a distance of 28 m from the 2.9 GW reactor core giving total flux of 6:52X10^12 cm^-2s^-1 in average at the experimental site. New analysis techniques and background suppression methods were developed. In the region of 3-8 MeV a measurement of SM cross section of (1:235+-0.577) XR_SM and Weinberg Angle of 0:264 +-0.075 which is quite consistent with the SM value of 0.23120(15
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8

Champion, Theresa Janet. "Quality assurance of CsI(TI) crystals for the B←aB←a←r electromagnetic calorimeter, and a Monte Carlo study of the CP-violating channel B'0#←>##pi#'+#pi#'-#pi#'0 for the B←aB←a←r." Thesis, Brunel University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311547.

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9

Caleman, Carl. "Towards Single Molecule Imaging - Understanding Structural Transitions Using Ultrafast X-ray Sources and Computer Simulations." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7915.

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10

Jwo, Yu-Ren, and 卓昱任. "Downlink Beamforming Designs for Per-Antenna Power Constrained FDD MISO Using Partial CSIT." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/pprdfg.

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碩士<br>國立臺灣大學<br>電信工程學研究所<br>105<br>In a previous work [1], multi-user beamforming design problem has been studied for frequency-division duplex (FDD) massive MIMO systems that uses only partial downlink (DL) channel state information at transmitter (CSIT), which requires very little overhead for CSI acquisition, under a total power constraint, where the partial CSIT is in the form of DL angles of departure(AoDs) and the amplitudes of the strongest paths of each user equipment(UE). In this thesis, we consider the problem under an additional per-antenna power constraints (PAPCs) criterion, whic
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11

Hsu, Chia-Lin, and 許家霖. "Max-Min Hybrid Beamforming Optimization in Large-Scale Antenna Systems with Partial CSIT." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/hxnknc.

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碩士<br>國立臺灣大學<br>電信工程學研究所<br>106<br>Large-scale antenna (LSA) holds a huge potential for the next-generation communication systems. However, the acquisition of full channel state information at transmitter (CSIT) becomes a big challenge when the scale of antenna arrays gets larger. Furthermore, conventional fully digital beamforming (FDB) requires a dedicated radio frequency (RF) chain for each antenna, which leads to high cost and critical power consumption in LSA. In this thesis, a hybrid beamforming (HB) design method in frequency-division duplex (FDD) LSA systems with partial CSIT condition
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12

Wang, Szu-Yu, and 王思諭. "Hybrid Beamforming Designs for Multiuser Transmissions in FDD Massive MIMO Systems Using Partial CSIT." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/71008000375908852654.

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碩士<br>國立臺灣大學<br>電信工程學研究所<br>104<br>In this thesis, we consider an effective acquisition mechanism of partial channel state information at the transmitter (CSIT) for frequency-division du- plex (FDD) massive MIMO systems, based on this phenomenon, we propose downlink beamforming methods. The partial CSIT is in the form of down- link angles of departure (AoDs) and the amplitudes of the strongest paths of each UE. By exploiting the reciprocity between downlink AoDs and uplink angles of arrival (AoAs), the partial CSIT can be acquired through down- link training and uplink feedback effectively. Th
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13

Su, Chien-Li, and 蘇建吏. "On the Secrecy Rate Region of a Fast Fading Multiple-Antenna Gaussian Broadcast Channel with Confidential Messages and Partial CSIT." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/84496919642921492310.

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碩士<br>國立臺灣大學<br>電信工程學研究所<br>100<br>In this thesis we consider the secure transmission over the fast fading multiple antenna Gaussian broadcast channel with confidential messages (FMGBC-CM), where a multiple-antenna transmitter sends independent confidential messages to two users with informa-tion theoretic secrecy and only the statistics of the receivers’ channel state information are known at the transmitter. We first use the same marginal property of the FMGBC-CM to classify the non-trivial cases, i.e., both the two users have nonzero rates. We then derive the achievable rate region for the
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14

Uei-ChiehNiu and 牛威捷. "Relay Selection Based on Partial CSI for Energy Harvesting in MIMO Systems." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/69cby3.

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15

Wang, Li-Yu, and 王勵育. "Energy Efficient Beamforming Design With SWIPT for Heterogeneous Cellular Networks Under Partial CSI." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/yb68q7.

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碩士<br>國立清華大學<br>電機工程學系所<br>106<br>In this work, we consider a heterogeneous cellular network (HCN) with a macrocell and multiple femtocells. In each femtocell, the femto base station (FBS) serves a femto user (FU), which is capable of simultaneous wireless information and power transfer (SWIPT) energy harvesting (EH) in a power splitting manner. All FBSs suppress their interference to macro users (MUs) via a interference power constraint. In such a HCN, we aim to maximize the energy efficiency (EE) of all femtocells via the joint design of beamforming and power splitting ratios under partial c
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16

Chang, Yao-yuan, and 張耀元. "Recursive Beamforming Design for Wireless Information Transfer in Coordinated Multi-Point System with Partial CSI." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/99606713093789848417.

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碩士<br>國立中山大學<br>通訊工程研究所<br>102<br>In recent years, wireless communication has been developed quickly, and the mobile network has proceeded to the fourth generation communication systems. The subscriber’s handheld devices are going to have higher quality services and faster transmission throughput. In the fourth generation partnership project, coordinated multi-point (CoMP) transmission technique has been proposed to enhance the signal quality of the Long-Term Evolution-Advanced (LTE-A) systems. Through coordination among multiple cells, e-NodeBs (eNBs) adjust corresponding transmit beamforming
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17

Longo, Savino. "Measurements of the Radiation Hardness of CsI(Tl) Scintillation Crystals and Comparison Studies with Pure CsI for the Belle II Electromagnetic Calorimeter." Thesis, 2015. http://hdl.handle.net/1828/6707.

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In preparation for the large backgrounds expected to be present in the Belle II detector from the SuperKEKB e+e- collider, the radiation hardness of several large (5 x 5 x 30 cm3) thallium doped cesium iodide (CsI(Tl)) scintillation crystals are studied. The crystal samples studied consist of 2 spare crystals from the Belle experiment using PIN diode readout and 7 spare crystals from the BaBar experiment using photomultiplier tube readout. The radiation hardness of the scintillation properties of the CsI(Tl) crystals was studied at accumulated 1 MeV photon doses of 2, 10 and 35 Gy. At each
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18

Longo, Savino. "First application of CsI(Tl) pulse shape discrimination at an e^+ e^- collider to improve particle identification at the Belle II experiment." Thesis, 2019. http://hdl.handle.net/1828/11301.

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This dissertation investigates CsI(Tl) pulse shape discrimination (PSD) as a novel experimental technique to improve challenging areas of particle identification at high energy $e^+ e^-$ colliders using CsI(Tl) calorimeters. In this work CsI(Tl) PSD is implemented and studied at the Belle II experiment operating at the SuperKEKB $e^+ e^-$ collider, representing the first application of CsI(Tl) PSD at a $B$ factory experiment. Results are presented from Belle II as well as a testbeam completed at the TRIUMF proton and neutron irradiation facility. From the analysis of the testbeam data,
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