Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 21 for “"Key Enabling Technologies"”.
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Electric powertrains : opportunities and challenges in the US light-duty vehicle fleet
… to offer such reductions. The evolution of key enabling technologies was evaluated over a 30 year time horizon. These results were integrated with software simulations to model vehicle performance and tank-to-wheel energy consumption; the technology evaluation was also used to estimate …
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Ex Ante Approaches for Security, Privacy, and Enforcement in Spectrum Sharing
… It is widely believed that CRs are one of the key enabling technologies for realizing a new regulatory spectrum management paradigm, viz. dynamic spectrum access (DSA). CRs often employ software-defined radio (SDR) platforms that are capable of executing artificial intelligence (AI) algorithms …
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A Multidisciplinary Analysis of a Stratospheric Airborne Climate Observatory System for Key Climate Risk Areas
… is proposed to leverage recent advancements in key enabling technologies for solar electric flight (batteries and solar cells) and enabling technologies for Earth observation (lidar, radar, laser systems, etc.). Advantages of this observation system include the ability to make in-situ …
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Indoor Human Sensing for Human Building Interaction
… occupants. Human sensing system is one of the key enabling technologies for smart built environments. We present our research findings related to the design and deployment of an indoor human sensing system in large public built spaces. We use a case study to illustrate the challenges, …
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Market and strategic analysis of opinion aggregators
… analyze the opinion aggregator to understand its key characteristics. The research then zooms in on one of the most popular opinion aggregators, the product review aggregator, to understand its market opportunities, enabling technologies, and business models. The author samples nine product review …
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Scalable fault management architecture for dynamic optical networks : an information-theoretic approach
… lightpaths at intermediate nodes is one of the key enabling technologies for economically scalable future data networks. This replacement of electronic switching with optical switching at intermediate nodes, however, presents new challenges for fault detection and localization in reconfigurable …
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Investigation of performance issues affecting optical circuit and packet switched WDM networks
… switching work the focus shifts to one of the key enabling technologies for fast optical switching, namely the tunable laser. Tunable lasers which can switch on the nanosecond timescale will be required in the transmitters and wavelength converters of optical packet switching networks. The …
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Resource management for wireless communications : an energy efficiency approach
… (QoS). This can be achieved by integrating the key enabling technologies such as massive multiple-input multiple-output (MIMO) (i.e., the use of a massive number of antennas to provide high spectral efficiency for users), multi-cell massive MIMO (i.e., the ability to serve a larger number of …
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High-frequency, slotless permanent magnet synchronous motor for aircraft propulsion
… low-volume electric machines as one of the key enabling technologies. This dissertation details work accomplished in the development of a 1 MW, 13 kW/kg, high-frequency electric machine design for improving specific power density for weight- and/or volume-sensitive applications. Analytical …
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Securing Cognitive Radios with a Policy Enforcer and Secure Inter-component Transport Mechanisms
… Radios (SDRs) and Cognitive Radios (CRs) are the key enabling technologies to address these problems. The reconfigurability of SDRs combined with the decoupling of policies and the platform in policy-based radios poses a new technical problem --- viz, enforcing policy conformance. Each DARPA XG …
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Adaptive control of Unmanned Aerial Systems
Adaptive control is considered to be one of the key enabling technologies for future high-performance, safety-critical systems such as air-breathing hypersonic vehicles. Adaptive flight control systems offer improved performance and increased robustness to uncertainties by virtue of their ability …
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Contribución a la planificación y despliegue de las tecnologías habilitadoras de Smart Cities y Smart Factories
… en entornos industriales, las llamadas Key Enabling Technologies (KET). Esta transición crea un entorno lleno de incógnitas y dificultades en su implantación, tanto a nivel tecnológico, de estándares así como en la creación de nuevos roles en los trabajadores. Además, la utilización de …
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Technology Demonstration of a Megawatt-Class Integrated Motor Drive for Aircraft Propulsion
… constraints is developed to identify key enabling technologies for maximizing specific power. A tooth-and-slot stator with an outer rotor Halbach array rotor architecture is identified to maximize electric machine specific power with current technology across a range of power levels …
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Spectrum sharing in next generation wireless communication networks
… the emerging spectrum sharing frameworks and enabling spectrum sharing in cellular networks. Our work focuses on two main spectrum sharing frameworks: Spectrum Access System (SAS) in the U.S. and Licensed Shared Access (LSA) in Europe. We address the common and differing factors, then propose …
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The Next Generation Balloon-Borne Large Aperture Submillimeter Telescope (blast-Tng)
… to a new level of understanding. One of the key enabling technologies of BLAST-TNG is its three arrays of polarization-sensitive Microwave Kinetic Inductance Detectors (MKIDs). MKIDs are superconducting RLC circuits with a resonant frequency that shifts proportionally to the amount of …
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Low-Latency Massive MIMO Design over Practical Channels
… network, which is labeled as 5G. One of the key enabling technologies of 5G is massive MIMO or base-stations with tens to hundreds of antennas. In this thesis, I design cross-layer transmission control for massive MIMO and demonstrate that high throughput can be achieved at less than 1 ms …
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Electrical behaviour of quantum systems at high frequencies - Bridging the gap between transistor and qubit
… scientific and technological landscape. Quantum technologies have unlocked unprecedented performance and capabilities, while quantum computing has demonstrated computational advantage, ushering in a new paradigm of conceiving information processing, and inching closer to Feynman's dream of …
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Ubiquitous Robotics System for Knowledge-based Auto-configuration System for Service Delivery within Smart Home Environments
… field of ubiquitous robotics and Semantic Web technologies. It introduces a novel approach called the Knowledge-based Auto-configuration Software Robot (Sobot) for Smart Home Environments, which utilises the Sobot to achieve auto-configuration of the system. The research work was conducted …
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Cognitive Gateway to Promote Interoperability, Coverage and Throughput in Heterogeneous Communication Systems
… from the entire network and investigates the key enabling technologies for such a snapshot. The CG features provide universal interoperability, which is enabled by a generic waveform representation format and the reconfigurable software defined radio platform. According to the trend of an all …
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An Innovative RAN Architecture for Emerging Heterogeneous Networks: "The Road to the 5G Era"
… 3G and 4G (LTE/LTE-A) cellular radio access technologies (RATs) won't be able to meet the anticipated growth in mobile traffic demand. To address these challenges, the wireless industry and standardization bodies have initiated a roadmap for transition from 4G to 5G cellular technology with a …
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