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Dissertations / Theses on the topic 'Ultra-reliable'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

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1

Harper, Rick. "Critical issues in ultra-reliable parallel processing." Thesis, Massachusetts Institute of Technology, 1987. http://hdl.handle.net/1721.1/14802.

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2

Kharel, B. (Binod). "Ultra reliable low latency communication in MTC network." Master's thesis, University of Oulu, 2018. http://jultika.oulu.fi/Record/nbnfioulu-201809212822.

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Abstract. Internet of things is in progress to build the smart society, and wireless networks are critical enablers for many of its use cases. In this thesis, we present some of the vital concept of diversity and multi-connectivity to achieve ultra-reliability and low latency for machine type wireless communication networks. Diversity is one of the critical factors to deal with fading channel impairments, which in term is a crucial factor to achieve targeted outage probabilities and try to reach out such requirement of five 9’s as defined by some standardization bodies. We evaluate an interfer

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3

Özenir, Onur. "Redundancy techniques for 5G Ultra Reliable Low Latency Communications." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022. http://amslaurea.unibo.it/25082/.

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The 5G Core Network architecture is modeled to include instruments that can establish networks built on the same physical infrastructure but serve different service categories for communication types with varying characteristics. Relying on virtualization and cloud technologies, these instruments make the 5G system different from previous mobile communication systems, change the user profile, and allow new business models to be included in the system. The subject of this thesis includes the study of Ultra-reliable low latency communication, which is one of the fundamental service categories d

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4

Faxén, Linnea. "A Study on Segmentation for Ultra-Reliable Low-Latency Communications." Thesis, Linköpings universitet, Kommunikationssystem, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-138568.

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To enable wireless control of factories, such that sensor measurements can be sent wirelessly to an actuator, the probability to receive data correctly must be very high and the time it takes to the deliver the data from the sensor to the actuator must be very low. Earlier, these requirements have only been met by cables, but in the fifth generation mobile network this is one of the imagined use cases and work is undergoing to create a system capable of wireless control of factories. One of the problems in this scenario is when all data in a packet cannot be sent in one transmission while ensu

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5

Maric, Bojan. "Cache designs for reliable hybrid high and ultra-low voltage operation." Doctoral thesis, Universitat Politècnica de Catalunya, 2014. http://hdl.handle.net/10803/144563.

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Increasing demand for implementing highly-miniaturized battery-powered ultra-low-cost systems (e.g., below 1 USD) in emerging applications such as body, urban life and environment monitoring, etc., has introduced many challenges in the chip design. Such applications require high performance occasionally, but very little energy consumption during most of the time in order to extend battery lifetime. In addition, they require real-time guarantees. The most suitable technological solution for those devices consists of using hybrid processors able to operate at: (i) high voltage to provide high pe

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6

Le, Trung Kien. "Physical layer design for ultra-reliable low-latency communications in 5G." Electronic Thesis or Diss., Sorbonne université, 2021. http://www.theses.fr/2021SORUS198.

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L'émergence de nouveaux cas et d’applications tels que la réalité virtuelle/augmentée, l'automatisation industrielle, les véhicules autonomes, etc. en 5G fait définir au Third Generation Partnership Project (3GPP) Ultra-reliable low-latency communications (URLLC) comme un des trois services. Pour soutenir URLLC avec des exigences strictes de la fiabilité et de la latence, 3GPP Release 15 et 16 ont standardisé des fonctionnalités d’URLLC dans le spectre sous licence. Release 17 en cours agrandit des fonctionnalités d’URLLC au spectre sans licence pour cibler des nouveaux cas dans des scénarios

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7

Sulieman, Nabeel Ibrahim. "Diversity and Network Coded 5G Wireless Network Infrastructure for Ultra-Reliable Communications." Scholar Commons, 2019. https://scholarcommons.usf.edu/etd/7961.

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This dissertation is directed towards improving the performance of 5G Wireless Fronthaul Networks and Wireless Sensor Networks, as measured by reliability, fault recovery time, energy consumption, efficiency, and security of transmissions, beyond what is achievable with conventional error control technology. To achieve these ambitious goals, the research is focused on novel applications of networking techniques, such as Diversity Coding, where a feedforward network design uses forward error control across spatially diverse paths to enable reliable wireless networking with minimal delay, in a w

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8

Gujarati, Arpan [Verfasser], and Björn [Akademischer Betreuer] Brandenburg. "Towards “Ultra-Reliable” CPS: Reliability Analysis of Distributed Real-Time Systems / Arpan Gujarati ; Betreuer: Björn Brandenburg." Kaiserslautern : Technische Universität Kaiserslautern, 2020. http://d-nb.info/1221599763/34.

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9

Dosti, E. (Endrit). "Ultra reliable communication via optimum power allocation for repetition and parallel coding in finite block-length." Master's thesis, University of Oulu, 2017. http://jultika.oulu.fi/Record/nbnfioulu-201706082640.

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Abstract. In this thesis we evaluate the performance of several retransmission mechanisms with ultra-reliability constraints. First, we show that achieving a very low packet outage probability by using an open loop setup is a difficult task. Thus, we resort to retransmission schemes as a solution for achieving the required low outage probabilities for ultra reliable communication. We analyze three retransmission protocols, namely Type-1 Automatic Repeat Request (ARQ), Chase Combining Hybrid ARQ (CC-HARQ) and Incremental Redundancy (IR) HARQ. For these protocols, we develop optimal power alloca

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Leroi, Lisa. "Quantitative MRI : towards fast and reliable T₁, T₂ and proton density mapping at ultra-high field." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS429/document.

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L’IRM quantitative recouvre l’ensemble des méthodes permettant de mesurer des paramètres physiques accessibles en Résonance Magnétique Nucléaire. Elle offre un bénéfice par rapport à l’imagerie en pondération classiquement utilisée, notamment pour la détection, la caractérisation physiopathologique mais aussi pour le suivi thérapeutique des pathologies. Malgré ce potentiel avéré connu de longue date, ces méthodes restent peu utilisées dans la routine clinique. La raison principale est la longueur des acquisitions par rapport à l’approche classique. Les paramètres physiques que nous souhaitons

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11

Liu, Yuhong. "Quality of service improvement in interference-limited 5G networks." Thesis, The University of Sydney, 2022. https://hdl.handle.net/2123/29742.

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Fifth Generation (5G) networks are expected to support emerging applications with diverse quality of service (QoS) requirements, such as reliability, latency, and age-of-information. In conventional wireless networks, orthogonal resources are allocated to different transmitters to guarantee QoS performance. As the density of networks or devices increases, we need to increase the frequency reuse factor. Thus, interference becomes one of the bottlenecks for ensuring the QoS requirements of a large number of devices with limited time-frequency resources. This thesis presents novel methods for imp

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12

Chagdali, Abdellatif. "Multi-connectivity and resource allocation for slices in 5G networks." Electronic Thesis or Diss., université Paris-Saclay, 2022. http://www.theses.fr/2022UPAST052.

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Les futurs réseaux mobiles promettent des opportunités sans précédent pour l'innovation et des cas d'utilisation disruptifs. L'engagement des réseaux 5G et au-delà à fournir des applications critiques nécessite un réseau polyvalent, évolutif, efficace et rentable, capable d'adapter son allocation de ressources pour répondre aux exigences de services hétérogènes. Pour relever ces défis, le découpage du réseau s'est imposé comme l'un des concepts fondamentaux proposés pour améliorer l'efficacité des réseaux mobiles 5G et leur conférer la plasticité requise. L'idée est de fournir des ressources à

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13

Boukhalfa, Mohamed Fouzi. "Low latency radio and visible light communications for autonomous driving." Electronic Thesis or Diss., Sorbonne université, 2021. http://www.theses.fr/2021SORUS164.

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Le sujet de cette thèse porte sur les réseaux sans fil véhiculaires et, plus précisément, sur l’utilisation de la transmission radio et de la communication par la lumière (VLC) pour améliorer la sécurité des véhicules. La thèse est motivée par les problèmes de fiabilité et d’évolutivité de la norme IEEE 802.11p. L’idée est d’évoluer vers de nouvelles techniques, et d’associer la transmission radio à la communication en VLC pour permettre une communication hybride. La première partie de la thèse concerne la mise au point de techniques d’accès radio à faible latence dans les réseaux véhiculaires

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14

Nguyen, Alex The Phuong. "Short frame wireless communications : new challenges for the physical layer." Thesis, Ecole nationale supérieure Mines-Télécom Atlantique Bretagne Pays de la Loire, 2019. http://www.theses.fr/2019IMTA0154.

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Les systèmes de communication sans fil à venir vont faire un usage intensif des transmissions de paquets courts. La norme 5G émergente en est un exemple parfait, pour lequel deux des trois principaux cas d'utilisation, les communications massives de type machine (mMTC) et les communications ultra fiables à faible latence (URLLC), reposent intrinsèquement sur des paquets courts. Un autre exemple est fourni par les récents réseaux d'accès de faible puissance (LPWAN) tels que Sigfox, LoRa, etc. et conçus pour prendre en charge l'IoT. L'utilisation de paquets courts au niveau de la couche physique

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15

Trobinger, Matteo. "Fast, Reliable, Low-power Wireless Monitoring and Control with Concurrent Transmissions." Doctoral thesis, Università degli studi di Trento, 2021. http://hdl.handle.net/11572/312928.

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Low-power wireless technology is a part and parcel of our daily life, shaping the way in which we behave, interact, and more generally live. The ubiquity of cheap, tiny, battery-powered devices augmented with sensing, actuation, and wireless communication capabilities has given rise to a ``smart" society, where people, machines, and objects are seamlessly interconnected, among themselves and with the environment. Behind the scenes, low-power wireless protocols are what enables and rules all interactions, organising these embedded devices into wireless networks, and orchestrating their communic

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16

Trobinger, Matteo. "Fast, Reliable, Low-power Wireless Monitoring and Control with Concurrent Transmissions." Doctoral thesis, Università degli studi di Trento, 2021. http://hdl.handle.net/11572/312928.

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Low-power wireless technology is a part and parcel of our daily life, shaping the way in which we behave, interact, and more generally live. The ubiquity of cheap, tiny, battery-powered devices augmented with sensing, actuation, and wireless communication capabilities has given rise to a ``smart" society, where people, machines, and objects are seamlessly interconnected, among themselves and with the environment. Behind the scenes, low-power wireless protocols are what enables and rules all interactions, organising these embedded devices into wireless networks, and orchestrating their communic

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17

"Ultra reliable computing systems." PORTLAND STATE UNIVERSITY, 2008. http://pqdtopen.proquest.com/#viewpdf?dispub=3294668.

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18

Jong-Yi, LIN, and 林忠誼. "Design of Low Rate Coding Schemes for Ultra-Reliable Communications." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/2yvy2t.

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碩士<br>國立臺北大學<br>通訊工程研究所<br>105<br>In recent years, there is a fast growing demand on trac safety and transportation eciency, in particular auto-driving becomes an evident future trend. Due to the significance of vehicular safety, the tranceiving of urgent information regarding a moving car must have a very low latency and should be highly reliable. It is thus referred to as the Ultra-Reliable Communications type in the standardization. The traditional forward error correction coding (FEC) schemes such as turbo codes and low-density parity-check codes (LDPC) suer error oor eect at high signal-t

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19

Yu, Chung-Wei, and 游中維. "Design of Low Rate Coding Schemes for Ultra-Reliable Communications." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/96174205320883946448.

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20

Liu, Pei-Yi, and 劉佩宜. "Energy-Efficient Uplink Resource Scheduling for Ultra-Reliable Communications in NB-IoT Networks." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/e98z5n.

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碩士<br>國立交通大學<br>網路工程研究所<br>106<br>For 5G wireless communications, the 3GPP Narrowband Internet of Thing (NB-IoT) is one of the most promising technologies, which provides multiple types of Resource Unit (RU) with a special repetition mechanism to improve scheduling flexibility, coverage, and transmission reliability. Besides, NB-IoT supports different operation modes to reuse the spectrum of LTE and GSM, making bandwidth use more efficiently. As IoT devices usually need to operate for very long time, their energy consumption becomes a critical issue. NB-IoT provides discontinuous reception ope

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21

Spurlock, Virgil K. "Design and simulation of an ultra reliable fault tolerant computing system voter and interstage." Thesis, 1986. http://hdl.handle.net/10945/21777.

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22

Hou, Ching-I., and 侯清逸. "Physical-Layer Transceiver Implementation and SDR Platform Verification for 5G Ultra-Reliable Low-Latency Communications." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/6wew6r.

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碩士<br>元智大學<br>電機工程學系乙組<br>107<br>This thesis is to research the transceiver design of the uplink control and data channels of 5G mobile communication systems. This research focuses on the use of low complexity technology to achieve high reliability and low latency communication proposes. In this thesis, we adopt the 5G-NR physical layer specification, i.e., 3GPP 38.211, to design the transceiver of the Physical Uplink Control Channel (PUCCH) and Physical Uplink Share Channel (PUSCH). In wireless communications, the receiver involves multiple distortion factors, e.g., multipath and carrier freq

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23

Nelson, Ronald J. "The Synergistically Integrated Reliability architecture: a reliability analysis of an ultra-reliable fault tolerant computer design." Thesis, 1986. http://hdl.handle.net/10945/22139.

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24

Sudhamasapa, Nophadol. "A development and simulation of Synergistically Integrated Reliability (SIR)--for an ultra-reliable fault tolerance computer under communication software protocol for the growth algorithm." Thesis, 1986. http://hdl.handle.net/10945/21790.

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25

Lai, Cheng-Hung, and 賴政宏. "Design and Analysis of Ultra-High Speed Photodiode and Flip-Chip Bonding Package for Reliable High-Power Operation from DC to 300GHz Operating Frequency." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/93352277114753926069.

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碩士<br>國立中央大學<br>電機工程學系<br>102<br>Design and analysis of the flip-chip bonding package for near-ballistic uni-traveling-carrier photodiodes (NBUTC-PDs) with reliable high-power performance from dc to sub-THz (~300 GHz) frequency has been demonstrated. According to our simulation and measurement results, the geometric size of flip-chip bonding structure becomes a major limitation in speed and output power when the operating frequency is over ~100 GHz. In order to overcome this problem, the position of Au/Sn bump on bottom AlN substrate for bonding process, must be as close as possible with the

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26

Hu, Junhao. "Directed connectivity analysis and its application on LEO satellite backbone." Thesis, 2021. http://hdl.handle.net/1828/13369.

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Network connectivity is a fundamental property affecting network performance. Given the reliability of each link, network connectivity determines the probability that a message can be delivered from the source to the destination. In this thesis, we study the directed network connectivity where the message will be forwarded toward the destination hop by hop, so long as the neighbor(s) is (are) closer to the destination. Directed connectivity, closely related to directed percolation, is very complicated to calculate. The existing state-of-the-art can only calculate directed connectivity for a

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27

Saikesava, Govindu. "Multi-connectivity for Urllc and Coexistence with Embb in Time-varying and Fading Channels." Thesis, 2022. https://etd.iisc.ac.in/handle/2005/5919.

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Ultra-reliable and low latency communications (URLLC) is a novel use case of 5G. It has challenging requirements like such as low block error rates (BLERs) and stringent latency targets. Multi-connectivity, in which multiple base stations (BSs) transmit the same data to the user, is a key technique in 5G to meet the stringent reliability requirements. URLLC data is immediately transmitted by puncturing the ongoing enhanced mobile broadband (eMBB) transmission to satisfy the latency constraint. However, this results in an increase in the BLER of the eMBB users. We first propose a low complex

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28

Shamsudin, Rahim Karim. "Protocol for Extreme Low Latency M2M Communication Networks." Master's thesis, 2018. http://hdl.handle.net/10362/59920.

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As technology evolves, more Machine to Machine (M2M) deployments and mission critical services are expected to grow massively, generating new and diverse forms of data traffic, posing unprecedented challenges in requirements such as delay, reliability, energy consumption and scalability. This new paradigm vindicates a new set of stringent requirements that the current mobile networks do not support. A new generation of mobile networks is needed to attend to this innovative services and requirements - the The fifth generation of mobile networks (5G) networks. Specifically, achieving ultra

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