Relevant bibliographies by topics / Multiple technologies

Academic literature on the topic 'Multiple technologies'

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Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Multiple technologies"

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Deribe, Yared, and Agajie Tesfaye. "Simultaneous Estimation of Multiple Dairy Technologies uptake." International Journal of Environmental and Agriculture Research 3, no. 5 (May 31, 2017): 48–61. http://dx.doi.org/10.25125/agriculture-journal-ijoear-may-2017-4.

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Lassak, Marshall. "Effectively using multiple technologies." International Journal of Mathematical Education in Science and Technology 46, no. 5 (January 19, 2015): 783–90. http://dx.doi.org/10.1080/0020739x.2014.1001455.

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Chandra, S. "Making sense of multiple technologies." IEEE Multimedia 9, no. 2 (April 2002): 77–78. http://dx.doi.org/10.1109/mmul.2002.998070.

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Trudeau, Christian. "Cost sharing with multiple technologies." Games and Economic Behavior 67, no. 2 (November 2009): 695–707. http://dx.doi.org/10.1016/j.geb.2009.01.002.

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Keith, L., and J. J. Oleszczuk. "Iatrogenic multiple birth, multiple pregnancy and assisted reproductive technologies." International Journal of Gynecology & Obstetrics 64, no. 1 (January 1999): 11–25. http://dx.doi.org/10.1016/s0020-7292(98)00230-6.

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Stoneman, Paul, and Myung-Joong Kwon. "The Diffusion of Multiple Process Technologies." Economic Journal 104, no. 423 (March 1994): 420. http://dx.doi.org/10.2307/2234761.

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Cho, Soo-Haeng, and Kevin F. McCardle. "The Adoption of Multiple Dependent Technologies." Operations Research 57, no. 1 (February 2009): 157–69. http://dx.doi.org/10.1287/opre.1080.0534.

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Gzara, Fatma, and Erhan Erkut. "Telecommunications network design with multiple technologies." Telecommunication Systems 46, no. 2 (March 5, 2010): 149–61. http://dx.doi.org/10.1007/s11235-010-9278-2.

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Han, Wan Jiang, Li Xin Jiang, Tian Bo Lu, and XiaoYan Zhang. "Residual Defect Prediction using Multiple Technologies." International Journal of Multimedia and Ubiquitous Engineering 10, no. 8 (October 31, 2015): 1–12. http://dx.doi.org/10.14257/ijmue.2015.10.8.01.

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Chen, Hsiao-Hwa, Daoben Li, and Qi Bi. "Special issue: emerging multiple access technologies." Wireless Communications and Mobile Computing 5, no. 1 (2005): 1–4. http://dx.doi.org/10.1002/wcm.287.

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Dissertations / Theses on the topic "Multiple technologies"

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Charitou, Stefania. "The film multiple : technologies, sites, practices." Thesis, Goldsmiths College (University of London), 2013. http://research.gold.ac.uk/9469/.

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This thesis examines the shifting conditions of the material and technological properties of the object of film and subsequently of the idea of cinema, in the light of the transition from analogue to digital technologies. I suggest that this technological transition has ontological dimensions, which I examine by looking at spaces and places that encompass this transition, materially and conceptually. The study argues that the nature of film and cinema is multiple, in continuous states of ‘becoming’. The anchor of this study is post-Actor Network theorist Annemarie Mol’s philosophical argument that objects ‘come into being’ according to the practices and sites in which they are placed. The thesis examines situated practice-based interactions between the two technologies, which shape relationships of power, replacement, exchange and collaboration. I explore those issues at four specific institutional sites: the gallery, focusing on three moving image exhibitions in London, the British Film Institute’s Archive in Berkhamsted, LUX, the UK agency of artists’ moving image distribution and collection, and the movie theatre’s projection room that gradually displays only digital films. This survey examines the situated practices of presentation, exhibition, print checking, archiving, restoration and theatrical projection of film. The aim of this study is to present a multiple object and a multiple idea that is defined not merely by technology, but rather by sites and in particular their operational practices, objectives and organization. By evaluating how analogue and digital technologies interplay in these sites, the study aims to highlight issues of film’s and cinema’s multiplicity that unfolds and shifts both in space and time. The investigated practices evolve in electronic spaces, physical sites and particular locations. Furthermore, they expose different temporalities for analogue and digital film and indicate cinema’s virtual nature to be transcending in time. The situated practices unite and divide the analogue and digital technologies, exposing a manipulative relationship between tangible space, formed by the mechanical apparatus of projection and network space, marked by the digital’s temporal and spatial ubiquity. At the same time, cinema is actualized in measurable time, while its phenomenon is formulated in the continuous movement and differentiation of duration.
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Andersson, Emelie. "Multiple Platform First : Design Guidelines for Multiple Platform Games." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-160991.

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This thesis investigates the two gaming platforms PC and Console and how the interfaces of games on these platforms could be designed more efficiently making it easier to release games on multiple platforms. In other words, how could the Multiple Platform First method look. Little previous work exist on this problem so this thesis work gathers information from other industries and also research on user interfaces in games in general. By looking at games running on both platforms different best practises and common solutions were discovered. A study was conducted testing different in-game components on users. The components were selected to test if the users would accept non-traditional components since users detect when playing on an interface not intended for the platform. This makes the study very complicated since the "best" solution might not work if the users does not accept it for the intended platform. Concepts were designed to combine the testing of solutions with the users opinion of the solutions. The chosen concepts were researched both in literature and by looking at present implementations in games. To be able to user test the solutions they were iterated from low fidelity prototypes on paper to high fidelity prototypes that were playable in Unity. The prototypes were tested on users and data gathered through Think Aloud comments and questionnaire answers. This study presents a first draft of how a multiple platform approach can be achieved.
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Koopmans, Reinout Michael. "Asymmetric industry structures : multiple technologies, firm dynamics and profitability." Thesis, London School of Economics and Political Science (University of London), 1996. http://etheses.lse.ac.uk/1428/.

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The origins of asymmetric firm sizes are analyzed in the first part of this thesis, modelling technology choice in a one shot quantity game with homogeneous goods. For certain sizes of the market more than one technology is chosen in equilibrium. Generally, the larger the market, the higher the fixed cost of the technology that is chosen in equilibrium. The trade off between market size and concentration is non-monotonic, even if for any size of the market only the most fragmented market structure is considered. In the second part consequences of asymmetric firm sizes are investigated. In Chapter 3 firm dynamics in the chemical sector are examined, distinguishing between the dynamics of scale and scope. The production capacity of firms in homogeneous bulk chemical markets converges in size on a market by market basis, resulting in a fragmented industry structure on a disaggregated level. However, the number of products chemical corporations produce within a category of (synthetic organic) chemicals diverges, leading to a more concentrated industry structure on higher levels of aggregation. These counteracting forces can potentially explain the persistence of concentration that has been observed in fast growing chemical markets. In Chapter 4 it is shown that if the observed asymmetry between firms is consistent with a (subgame-perfect) equilibrium of some single or multi-stage game, bounds exist that restrict the degree of asymmetry between the firms' profitability. Their shape is determined by industry factors. In particular, a higher sensitivity of a firm's profitability on its competitor's action rotates the bounds on the profitability-size trade off anti-clockwise. This is tested for homogeneous goods industries using a panel from the FTC Line of Business Data. Allowing for firm specific fixed effects, some strong empirical support is found.
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Oliveira, Rúben Pedrosa. "Sensor networks with multiple technologies: short and long range." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/22735.

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Mestrado em Engenharia Eletrónica e Telecomunicações
Low-Power Wide Area Networks (LPWANs) are one set of technologies that are growing in the eld of the Internet of Things (IoT). Due to the long range capabilities and low energy consumption, Low-Power Wide Area Networks (LPWANs) are the ideal technologies to send small data occasionally. With their unique characteristics, LPWANs can be used in many applications and in di erent environments such as urban, rural and even indoor. The work developed in this dissertation presents a study on the LPWAN LoRa technology, by testing and evaluate its range, signal quality properties and its performance in delivering data. For this, three distinct scenarios are proposed and tested. The inclusion of LoRa in a multi-technology data gathering platform is the key objective of this dissertation. For this it is proposed: (1) an organization based in clusters of sensor nodes; (2) a Media Access Control (MAC) protocol to provide e cient communications through the LoRa technology; and nally, (3) a Connection Manager that is capable of managing the di erent available technologies in the sensor nodes and that is able to adapt its actions according to the acquired data type is proposed. The performed tests aim to perceive which type of parameters can in uence the performance of the overall proposed solution, as well as the advantages of a multi-technology approach in a data gathering platform.
Low-Power Wide Area Networks (LPWANs) são um conjunto de tecnologias em crescimento na área da Internet of Things (IoT). Devido ás suas capacidades de comunicar a longo alcance e de baixo consumo energético, as LPWANs apresentam-se como a tecnologia ideal para o envio ocasional de pequenas porções de dados. Ao possuírem características únicas, as LPWANs podem ser usadas em diversas aplicações e em diferentes ambientes, sejam eles urbanos, rurais ou interiores. O trabalho desenvolvido nesta dissertação apresenta um estudo acerca da tecnologia Long Range (LoRa), uma LPWAN, testando e avaliando o seu alcance, a qualidade do sinal e o desempenho na entrega de dados. Para isso, três cenários distintos são propostos e testados. A inclusão de LoRa numa plataforma de aquisição de dados com múltiplas tecnologias e um dos objectivos chave desta dissertação. Para isso, são propostas: (1) uma organização baseada em clusters de sensores; (2) um protocolo de controlo de acesso ao meio (MAC) para permitir que as comunicações através de LoRa sejam eficientes; e finalmente, (3) um gestor de conectividade com capacidade de gerir as diferentes tecnologias disponíveis nos sensores e que seja capaz de agir consoante o tipo de dados adquiridos. Os testes efectuados tem como objectivo perceber que tipo de parâmetros podem influenciar o desempenho global da soluçao proposta, bem como as vantagens de usar uma abordagem baseada em múltiplas tecnologias numa plataforma de aquisição de dados.
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DeRoest, Gary Eugene. "How People With Multiple Sclerosis Experience Web-Based Instructional Technologies." ScholarWorks, 2019. https://scholarworks.waldenu.edu/dissertations/7375.

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People with the autoimmune disease multiple sclerosis (MS) have few options for educational activities. Although web-based instruction may be a viable option, little is known about how people with MS perceive this form of learning. The purpose of this qualitative study was to understand the experiences of people with MS regarding web- based instruction. The 3 learning structures--differentiated instruction, collaborative learning, and assistive technology--provided the conceptual framework for this research. Nine volunteers from the Pacific Northwest area of the United States who have MS were individually interviewed for this basic qualitative study. Transcripts were analyzed using open, axial, and selective coding. The results indicated that all participants found personal and professional benefits of their experience with web-based instruction and used course management systems to successfully communicate with instructors or peers. Participants also noted that these management systems did not directly aggravate their MS disease symptoms. Findings from the study may be useful information to individuals with MS for effectively managing their educational choices. This study's results could also be used by learning institutions to improve the access to education and allow individuals with MS to more fully participate in training opportunities.
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Jamalipour, Abbas, Tadahiro Wada, Takaya Yamazato, and 敬也 山里. "A Tutorial on Multiple Access Technologies for Beyond 3G Mobile Networks." IEEE, 2005. http://hdl.handle.net/2237/6614.

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Hilgers, Brandon. "SRAM Compiler For Automated Memory Layout Supporting Multiple Transistor Process Technologies." DigitalCommons@CalPoly, 2015. https://digitalcommons.calpoly.edu/theses/1423.

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This research details the design of an SRAM compiler for quickly creating SRAM blocks for Cal Poly integrated circuit (IC) designs. The compiler generates memory for two process technologies (IBM 180nm cmrf7sf and ON Semiconductor 600nm SCMOS) and requires a minimum number of specifications from the user for ease of use, while still offering the option to customize the performance for speed or area of the generated SRAM cell. By automatically creating SRAM arrays, the compiler saves the user time from having to layout and test memory and allows for quick updates and changes to a design. Memory compilers with various features already exist, but they have several disadvantages. Most memory compilers are expensive, usually only generate memory for one process technology, and don’t allow for user-defined custom SRAM cell optimizations. This free design makes it available for students and institutions that would not be able to afford an industry-made compiler. A compiler that offers multiple process technologies allows for more freedom to design in other processes if needed or desired. An attempt was made for this design to be modular for different process technologies so new processes could be added with ease; however, different process technologies have different DRC rules, making that option very difficult to attain. A customizable SRAM cell based on transistor sizing ratios allows for optimized designs in speed, area, or power, and for academic research. Even for an experienced designer, the layout of a single SRAM cell (1 bit) can take an hour. This command-line-based tool can draw a 1Kb SRAM block in seconds and a 1Mb SRAM block in about 15 minutes. In addition, this compiler also adds a manually laid out precharge circuit to each of the SRAM columns for an enhanced read operation by ensuring the bit lines have valid logic output values. Finally, an analysis on SRAM cell stability is done for creating a robust cell as the default design for the compiler. The default cell design is verified for stability during read and write operations, and has an area of 14.067 µm2 for the cmrf7sf process and 246.42 µm2 for the SCMOS process. All factors considered, this SRAM compiler design overcomes several of the drawbacks of other existing memory compilers.
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NILSEN, SAMUEL, and ERIC NYBERG. "The adoption of Industry 4.0- technologies in manufacturing : a multiple case study." Thesis, KTH, Industriell Management, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-190630.

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Innovations such as combustion engines, electricity and assembly lines have all had a significant role in manufacturing, where the past three industrial revolutions have changed the way manufacturing is performed. The technical progress within the manufacturing industry continues at a high rate and today's progress can be seen as a part of the fourth industrial revolution. The progress can be exemplified by ”Industrie 4.0”; the German government's vision of future manufacturing. Previous studies have been conducted with the aim of investigating the benefits, progress and relevance of Industry 4.0-technologies. Little emphasis in these studies has been put on differences in implementation and relevance of Industry 4.0-technologies across and within industries. This thesis aims to investigate the adoption of Industry 4.0-technologies among and within selected industries and what types of patterns that exists among them. Using a qualitative multiple case study consisting of firms from Aerospace, Heavy equipment, Automation, Electronics and Motor Vehicle Industry, we gain insight into how leading firms are implementing the technologies. In order to identify the factors determining how Industry 4.0-technologies are implemented and what common themes can be found, we introduce the concept production logic, which is built upon the connection between competitive priorities; quality, flexibility, delivery time, cost efficiency and ergonomics. This thesis has two contributions. In our first contribution, we have categorized technologies within Industry 4.0 into two bundles; the Human-Machine-Interface (HMI) and the connectivity bundle. The HMI bundle includes devices for assisting operators in manufacturing activities, such as touchscreens, augmented reality and collaborative robots. The connectivity-bundle includes systems for connecting devices, collecting and analyzing data from the digitalized factory. The result of this master thesis indicates that depending on a firm’s or industry’s logic of production, the adoption of elements from the technology bundles differ. Firms where flexibility is dominant tend to implement elements from the HMI-bundle to a larger degree. In the other end, firms with few product variations where quality and efficiency dominates the production logic tends to implement elements from the connectivity bundle in order to tightly monitor and improve quality in their assembly. Regardless of production logic, firms are implementing elements from both bundles, but with different composition and applications. The second contribution is within the literature of technological transitions. In this contribution, we have studied the rise and development of the HMI-bundle in the light of Geels (2002) Multi-Level Perspective (MLP). It can be concluded that an increased pressure on the landscape-level in the form of changes in the consumer-market and the attitudes within the labor force has created a gradual spread of the HMI-bundle within industries. The bundles have also been studied through Rogers (1995) five attributes of innovation, where the lack of testability and observability prevents increased application of M2M-interfaces. Concerning Big Data and analytics, the high complexity prevents the technology from being further applied. As the HMI-bundle involves a number of technologies with large differences in properties, it is hard draw any conclusion using the attributes of innovation about what limits their application.
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Sheikh, Nasir Jamil. "Assessment of Solar Photovoltaic Technologies Using Multiple Perspectives and Hierarchical Decision Modeling." PDXScholar, 2013. https://pdxscholar.library.pdx.edu/open_access_etds/978.

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The objective of this research is to build a decision model for a comprehensive assessment of solar photovoltaic technologies using multiple perspectives. These perspectives include: social, technological, economic, environmental, and political (STEEP) with each perspective consisting of multiple criteria. Hierarchical decision modeling and expert judgment quantification are used to provide the relative ranking of the perspectives and criteria. Such modeling is effective in addressing technology evaluations with competing and contrasting perspectives and criteria where both quantitative and qualitative measurements are represented. The model is then operationalized by constructing desirability functions for each criterion. The combined results provide an overall numerical score for each technology under consideration as well as criteria desirability gaps. This model is useful for assessing photovoltaic technologies from varying worldviews such as the electric utility worldview, the photovoltaic manufacturer's worldview, or the national policy worldview. This model can also provide guidance to decision makers and practitioners on areas of improvement for a selected technology. The research utilizes the electric utility worldview as a case study.
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Giménez, Colás Sonia. "Ultra Dense Networks Deployment for beyond 2020 Technologies." Doctoral thesis, Universitat Politècnica de València, 2017. http://hdl.handle.net/10251/86204.

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A new communication paradigm is foreseen for beyond 2020 society, due to the emergence of new broadband services and the Internet of Things era. The set of requirements imposed by these new applications is large and diverse, aiming to provide a ubiquitous broadband connectivity. Research community has been working in the last decade towards the definition of the 5G mobile wireless networks that will provide the proper mechanisms to reach these challenging requirements. In this framework, three key research directions have been identified for the improvement of capacity in 5G: the increase of the spectral efficiency by means of, for example, the use of massive MIMO technology, the use of larger amounts of spectrum by utilizing the millimeter wave band, and the network densification by deploying more base stations per unit area. This dissertation addresses densification as the main enabler for the broadband and massive connectivity required in future 5G networks. To this aim, this Thesis focuses on the study of the UDN. In particular, a set of technology enablers that can lead UDN to achieve their maximum efficiency and performance are investigated, namely, the use of higher frequency bands for the benefit of larger bandwidths, the use of massive MIMO with distributed antenna systems, and the use of distributed radio resource management techniques for the inter-cell interference coordination. Firstly, this Thesis analyzes whether there exists a fundamental performance limit related with densification in cellular networks. To this end, the UDN performance is evaluated by means of an analytical model consisting of a 1-dimensional network deployment with equally spaced BS. The inter-BS distance is decreased until reaching the limit of densification when this distance approaches 0. The achievable rates in networks with different inter-BS distances are analyzed for several levels of transmission power availability, and for various types of cooperation among cells. Moreover, UDN performance is studied in conjunction with the use of a massive number of antennas and larger amounts of spectrum. In particular, the performance of hybrid beamforming and precoding MIMO schemes are assessed in both indoor and outdoor scenarios with multiple cells and users, working in the mmW frequency band. On the one hand, beamforming schemes using the full-connected hybrid architecture are analyzed in BS with limited number of RF chains, identifying the strengths and weaknesses of these schemes in a dense-urban scenario. On the other hand, the performance of different indoor deployment strategies using HP in the mmW band is evaluated, focusing on the use of DAS. More specifically, a DHP suitable for DAS is proposed, comparing its performance with that of HP in other indoor deployment strategies. Lastly, the presence of practical limitations and hardware impairments in the use of hybrid architectures is also investigated. Finally, the investigation of UDN is completed with the study of their main limitation, which is the increasing inter-cell interference in the network. In order to tackle this problem, an eICIC scheduling algorithm based on resource partitioning techniques is proposed. Its performance is evaluated and compared to other scheduling algorithms under several degrees of network densification. After the completion of this study, the potential of UDN to reach the capacity requirements of 5G networks is confirmed. Nevertheless, without the use of larger portions of spectrum, a proper interference management and the use of a massive number of antennas, densification could turn into a serious problem for mobile operators. Performance evaluation results show large system capacity gains with the use of massive MIMO techniques in UDN, and even greater when the antennas are distributed. Furthermore, the application of ICIC techniques reveals that, besides the increase in system capacity, it brings significant energy savings to UDNs.
A partir del año 2020 se prevé que un nuevo paradigma de comunicación surja en la sociedad, debido a la aparición de nuevos servicios y la era del Internet de las cosas. El conjunto de requisitos impuesto por estas nuevas aplicaciones es muy amplio y diverso, y tiene como principal objetivo proporcionar conectividad de banda ancha y universal. En las últimas décadas, la comunidad científica ha estado trabajando en la definición de la 5G de redes móviles que brindará los mecanismos necesarios para garantizar estos requisitos. En este marco, se han identificado tres mecanismos clave para conseguir el necesario incremento de capacidad de la red: el aumento de la eficiencia espectral a través de, por ejemplo, el uso de tecnologías MIMO masivas, la utilización de mayores porciones del espectro en frecuencia y la densificación de la red mediante el despliegue de más estaciones base por área. Esta Tesis doctoral aborda la densificación como el principal mecanismo que permitirá la conectividad de banda ancha y universal requerida en la 5G, centrándose en el estudio de las Redes Ultra Densas o UDNs. En concreto, se analiza el conjunto de tecnologías habilitantes que pueden llevar a las UDNs a obtener su máxima eficiencia y prestaciones, incluyendo el uso de altas frecuencias para el aprovechamiento de mayores anchos de banda, la utilización de MIMO masivo con sistemas de antenas distribuidas y el uso de técnicas de reparto de recursos distribuidas para la coordinación de interferencias. En primer lugar, se analiza si existe un límite fundamental en la mejora de las prestaciones en relación a la densificación. Con este fin, las prestaciones de las UDNs se evalúan utilizando un modelo analítico de red unidimensional con BSs equiespaciadas, en el que la distancia entre BSs se disminuye hasta alcanzar el límite de densificación cuando ésta se aproxima a 0. Las tasas alcanzables en redes con distintas distancias entre BSs son analizadas, considerando distintos niveles de potencia disponible en la red y varios grados de cooperación entre celdas. Además, el comportamiento de las UDNs se estudia junto al uso masivo de antenas y la utilización de anchos de banda mayores. Más concretamente, las prestaciones de ciertas técnicas híbridas MIMO de precodificación y beamforming se examinan en la banda milimétrica. Por una parte, se analizan esquemas de beamforming en BSs con arquitectura híbrida en función de la disponibilidad de cadenas de radiofrecuencia en escenarios exteriores. Por otra parte, se evalúan las prestaciones de ciertos esquemas de precodificación híbrida en escenarios interiores, utilizando distintos despliegues y centrando la atención en los sistemas de antenas distribuidos o DAS. Además, se propone un algoritmo de precodificación híbrida específico para DAS, y se evalúan y comparan sus prestaciones con las de otros algoritmos de precodificación utilizados. Por último, se investiga el impacto en las prestaciones de ciertas limitaciones prácticas y deficiencias introducidas por el uso de dispositivos no ideales. Finalmente, el estudio de las UDNs se completa con el análisis de su principal limitación, el nivel creciente de interferencia en la red. Para ello, se propone un algoritmo de control de interferencias basado en la partición de recursos. Sus prestaciones son evaluadas y comparadas con las de otras técnicas de asignación de recursos. Tras este estudio, se puede afirmar que las UDNs tienen gran potencial para la consecución de los requisitos de la 5G. Sin embargo, sin el uso conjunto de mayores porciones del espectro, adecuadas técnicas de control de la interferencia y el uso masivo de antenas, las UDNs pueden convertirse en serios obstáculos para los operadores móviles. Los resultados de la evaluación de prestaciones de estas tecnologías confirman el gran aumento de la capacidad de las redes mediante el uso masivo de antenas y la introducción de mecanismos de I
A partir de l'any 2020 es preveu un nou paradigma de comunicació en la societat, degut a l'aparició de nous serveis i la era de la Internet de les coses. El conjunt de requeriments imposat per aquestes noves aplicacions és ampli i divers, i té com a principal objectiu proporcionar connectivitat universal i de banda ampla. En les últimes dècades, la comunitat científica ha estat treballant en la definició de la 5G, que proveirà els mecanismes necessaris per a garantir aquests exigents requeriments. En aquest marc, s'han identificat tres mecanismes claus per a aconseguir l'increment necessari en la capacitat: l'augment de l'eficiència espectral a través de, per exemple, l'ús de tecnologies MIMO massives, la utilització de majors porcions de l'espectre i la densificació mitjançant el desplegament de més estacions base per àrea. Aquesta Tesi aborda la densificació com a principal mecanisme que permetrà la connectivitat de banda ampla i universal requerida en la 5G, centrant-se en l' estudi de les xarxes ultra denses (UDNs). Concretament, el conjunt de tecnologies que poden dur a les UDNs a la seua màxima eficiència i prestacions és analitzat, incloent l'ús d'altes freqüències per a l'aprofitament de majors amplàries de banda, la utilització de MIMO massiu amb sistemes d'antenes distribuïdes i l'ús de tècniques distribuïdes de repartiment de recursos per a la coordinació de la interferència. En primer lloc, aquesta Tesi analitza si existeix un límit fonamental en les prestacions en relació a la densificació. Per això, les prestacions de les UDNs s'avaluen utilitzant un model analític unidimensional amb estacions base equidistants, en les quals la distància entre estacions base es redueix fins assolir el límit de densificació quan aquesta distància s'aproxima a 0. Les taxes assolibles en xarxes amb diferents distàncies entre estacions base s'analitzen considerant diferents nivells de potència i varis graus de cooperació entre cel·les. A més, el comportament de les UDNs s'estudia conjuntament amb l'ús massiu d'antenes i la utilització de majors amplàries de banda. Més concretament, les prestacions de certes tècniques híbrides MIMO de precodificació i beamforming s'examinen en la banda mil·limètrica. D'una banda, els esquemes de beamforming aplicats a estacions base amb arquitectures híbrides és analitzat amb disponibilitat limitada de cadenes de radiofreqüència a un escenari urbà dens. D'altra banda, s'avaluen les prestacions de certs esquemes de precodificació híbrida en escenaris d'interior, utilitzant diferents estratègies de desplegament i centrant l'atenció en els sistemes d' antenes distribuïdes (DAS). A més, es proposa un algoritme de precodificació híbrida distribuïda per a DAS, i s'avaluen i comparen les seues prestacions amb les de altres algoritmes. Per últim, s'investiga l'impacte de les limitacions pràctiques i altres deficiències introduïdes per l'ús de dispositius no ideals en les prestacions de tots els esquemes anteriors. Finalment, l' estudi de les UDNs es completa amb l'anàlisi de la seua principal limitació, el nivell creixent d'interferència entre cel·les. Per tractar aquest problema, es proposa un algoritme de control d'interferències basat en la partició de recursos. Les prestacions de l'algoritme proposat s'avaluen i comparen amb les d'altres tècniques d'assignació de recursos. Una vegada completat aquest estudi, es pot afirmar que les UDNs tenen un gran potencial per aconseguir els ambiciosos requeriments plantejats per a la 5G. Tanmateix, sense l'ús conjunt de majors amplàries de banda, apropiades tècniques de control de la interferència i l'ús massiu d'antenes, les UDNs poden convertir-se en seriosos obstacles per als operadors mòbils. Els resultats de l'avaluació de prestacions d' aquestes tecnologies confirmen el gran augment de la capacitat de les xarxes obtingut mitjançant l'ús massiu d'antenes i la introducci
Giménez Colás, S. (2017). Ultra Dense Networks Deployment for beyond 2020 Technologies [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/86204
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Books on the topic "Multiple technologies"

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Chen, Hsiao-Hwa. Next generation CDMA technologies. Hoboken, NJ: John Wiley, 2007.

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Norman, Abramson, and IEEE Information Theory Society, eds. Multiple access communications: Foundations for emerging technologies. Piscataway, NJ: IEEE Press, 1993.

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name, No. Multiple approaches to the study of bifacial technologies. Philadelphia, PA: University of Pennsylvania, Museum of Archaeology and Anthropology, 2003.

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Jan, Gerris, Olivennes F, and Sutter Petra de, eds. Assisted reproductive technologies: Quality and safety. Boca Raton: Parthenon Pub. Group, 2003.

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Lau, Vincent K. N., and Yu-Kwong Ricky Kwok. Channel-Adaptive Technologies and Cross-Layer Designs for Wireless Systems with Multiple Antennas. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2006. http://dx.doi.org/10.1002/0471774065.

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Channel-Adaptive Technologies and Cross-Layer Designs for Wireless Systems with Multiple Antennas. New York: John Wiley & Sons, Ltd., 2006.

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1938-, Garg Vijay Kumar, Nassar Carl R, Shattil Steve J, Society of Photo-optical Instrumentation Engineers., and Colorado Photonics Industry Association, eds. Enabling technologies for 3G and beyond: 22-23 August 2001, Denver, USA. Bellingham, Wash., USA: SPIE, 2001.

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Lau, Vincent K. N. Channel adaptive technologies and cross layer designs for wireless systems with multiple antennas: Theory and applications. Hoboken, NJ: Wiley-Interscience, 2004.

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Ricky, Kwok Yu-Kwong, ed. Channel adaptive technologies and cross layer designs for wireless systems with multiple antennas: Theory and applications. Hoboken, NJ: Wiley-Interscience, 2006.

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Maruenda-Bataller, Sergio, and Begoña Clavel-Arroitia. Multiple voices in academic and professional discourse: Current issues in specialised language research, teaching and new technologies. Newcastle upon Tyne: Cambridge Scholars Publishing, 2011.

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Book chapters on the topic "Multiple technologies"

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Huisman, Kuno J. M. "Multiple New Technologies." In Technology Investment: A Game Theoretic Real Options Approach, 127–57. Boston, MA: Springer US, 2001. http://dx.doi.org/10.1007/978-1-4757-3423-2_6.

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Kular, Lara, and Maja Jagodic. "DNA Methylation in Multiple Sclerosis." In RNA Technologies, 181–214. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-14792-1_8.

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Morais, Douglas H. "Multiple Antenna Techniques." In Key 5G Physical Layer Technologies, 169–96. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-51441-9_8.

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Morais, Douglas H. "Multiple Antenna Techniques." In Key 5G Physical Layer Technologies, 191–220. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-89209-8_8.

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Ginsberg, Gerald L. "Multiple Bare-Die Packaging Technologies." In Electronic Equipment Packaging Technology, 67–88. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3542-3_4.

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Kitamura, Yasuhiko. "Web Information Integration Using Multiple Character Agents." In Cognitive Technologies, 295–315. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-08373-4_13.

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Sasaki, Minoru. "Silicon Etching for Multiple-Height Microstructures." In Micro/Nano Technologies, 1–22. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-6588-0_29-1.

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Sasaki, Minoru. "Silicon Etching for Multiple-Height Microstructures." In Micro/Nano Technologies, 1–22. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-6588-0_29-2.

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Sasaki, Minoru. "Silicon Etching for Multiple-Height Microstructures." In Micro/Nano Technologies, 903–24. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0098-1_29.

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Guo, Weiyu, Shu Wu, Liang Wang, and Tieniu Tan. "Multiple Attribute Aware Personalized Ranking." In Web Technologies and Applications, 244–55. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-25255-1_20.

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Conference papers on the topic "Multiple technologies"

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Pisey, Sneha, Amar Yemul, Prasad Sangvikar, Rupesh Dubey, and Vineet Joshi. "Abstraction of Multiple Communication Technologies." In 2018 International Conference on Advances in Communication and Computing Technology (ICACCT). IEEE, 2018. http://dx.doi.org/10.1109/icacct.2018.8529395.

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Hossain, A. K. M. Mahtab, Hien Nguyen Van, Yunye Jin, and Wee-Seng Soh. "Indoor Localization Using Multiple Wireless Technologies." In 2007 IEEE Internatonal Conference on Mobile Adhoc and Sensor Systems. IEEE, 2007. http://dx.doi.org/10.1109/mobhoc.2007.4428622.

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Groves, Paul. "Assured PNT Through Multiple Diverse Technologies." In 29th International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2016). Institute of Navigation, 2016. http://dx.doi.org/10.33012/2016.14803.

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Foubert, Brandon, and Nathalie Mitton. "Routing Over Multiple Technologies with RODENT." In 2021 IEEE International Conference on Pervasive Computing and Communications Workshops and other Affiliated Events (PerCom Workshops). IEEE, 2021. http://dx.doi.org/10.1109/percomworkshops51409.2021.9431109.

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HARALDSDOTTIR, A., and R. HOWE. "Multiple frame rate integration." In Flight Simualtion Technologies Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1988. http://dx.doi.org/10.2514/6.1988-4579.

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Penazzi, Raffaele, Piergiorgio Capozio, Martin Duncan, Angelo Scuderi, Max Siti, and Edoardo Merli. "Cooperative Safety: a Combination of Multiple Technologies." In 2008 Design, Automation and Test in Europe. IEEE, 2008. http://dx.doi.org/10.1109/date.2008.4484804.

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Chikano, Megumi, Fumiharu Tomiyasu, Shuji Awai, Yuki Koyama, and Takeshi Konno. "Robust User Watching System using Multiple Technologies." In 2020 IEEE 9th Global Conference on Consumer Electronics (GCCE). IEEE, 2020. http://dx.doi.org/10.1109/gcce50665.2020.9291826.

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Oak, Aditya, Mira Mezini, and Guido Salvaneschi. "Language support for multiple privacy enhancing technologies." In the 3rd International Companion Conference. New York, New York, USA: ACM Press, 2019. http://dx.doi.org/10.1145/3328433.3328446.

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Lebel, Marc. "Multiple Applications, Multiple Roles: How Carbon Black Technologies Help Tires Roll Better." In International Congress & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1999. http://dx.doi.org/10.4271/1999-01-0788.

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Povey, G. J. R. "Multiple input multiple output (MIMO) radio channel models." In Third International Conference on 3G Mobile Communication Technologies. IEE, 2002. http://dx.doi.org/10.1049/cp:20020430.

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Reports on the topic "Multiple technologies"

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Beasley, D. B., and Daniel A. Saylor. Application of Multiple IR Projector Technologies for AMCOM HWIL Simulations. Fort Belvoir, VA: Defense Technical Information Center, January 1999. http://dx.doi.org/10.21236/ada461445.

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Goldman, Dana, and Tomas Philipson. Integrated Insurance Design in the Presence of Multiple Medical Technologies. Cambridge, MA: National Bureau of Economic Research, January 2007. http://dx.doi.org/10.3386/w12870.

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Lamont, A. Design of Storage Systems Using Multiple Storage Technologies in Renewable Systems. Office of Scientific and Technical Information (OSTI), January 2001. http://dx.doi.org/10.2172/792735.

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Sheikh, Nasir. Assessment of Solar Photovoltaic Technologies Using Multiple Perspectives and Hierarchical Decision Modeling. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.978.

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Siviy, Jeannine, Pat Kirwan, Lisa Marino, and John Morley. The Value of Harmonizing Multiple Improvement Technologies: A Process Improvement Professional's View. Fort Belvoir, VA: Defense Technical Information Center, March 2008. http://dx.doi.org/10.21236/ada622129.

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Carballo, Jerónimo, Alejandro Graziano, Georg Schaur, and Christian Volpe Martincus. The Border Labyrinth: Information Technologies and Trade in the Presence of Multiple Agencies. Inter-American Development Bank, June 2016. http://dx.doi.org/10.18235/0000490.

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Jorgenson, Jennie, Paul Denholm, Mark Mehos, and Craig Turchi. Estimating the Performance and Economic Value of Multiple Concentrating Solar Power Technologies in a Production Cost Model. Office of Scientific and Technical Information (OSTI), December 2013. http://dx.doi.org/10.2172/1260920.

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Cheng, Julian. Integrated Wavelength-Space-Time Optical Multiplexing Technologies and Architectures for Large-Scale, Reconfigurable, Multiple-Access Computer Networks. Fort Belvoir, VA: Defense Technical Information Center, March 2000. http://dx.doi.org/10.21236/ada375981.

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Chen, Maggie, and Christian Volpe Martincus. Digital Technologies and Globalization: A Survey of Research and Policy Applications. Inter-American Development Bank, March 2022. http://dx.doi.org/10.18235/0004117.

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Abstract:
In recent years, the world has witnessed the rise of multiple specific digital technologies, including online trade platforms, robotics, artificial intelligence (AI), 3D printing, cloud computing, blockchain, and financial technology (fintech). These digital technologies are fundamentally transforming the ways that firms and individualsas both workers and consumerscommunicate, search, trade, and invest. They are also substantially changing how governments design and implement trade and investment policies and programs and, in so doing, how they interact with firms, individuals, and each other. This paper reviews the growing empirical literature on the trade, investment, and broader development effects of the adoption of specific digital technologies. It also describes the policy applications of these technologies and discusses the incipient empirical literature on the impacts thereof. Based on this review, it identifies several open questions and avenues of future research that may be useful for deepening our understanding of digital technologies and their policy implications.
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Taiber, Joachim. Unsettled Topics Concerning the Impact of Quantum Technologies on Automotive Cybersecurity. SAE International, December 2020. http://dx.doi.org/10.4271/epr2020026.

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Quantum computing is considered the “next big thing” when it comes to solving computational problems impossible to tackle using conventional computers. However, a major concern is that quantum computers could be used to crack current cryptographic schemes designed to withstand traditional cyberattacks. This threat also impacts future automated vehicles as they become embedded in a vehicle-to-everything (V2X) ecosystem. In this scenario, encrypted data is transmitted between a complex network of cloud-based data servers, vehicle-based data servers, and vehicle sensors and controllers. While the vehicle hardware ages, the software enabling V2X interactions will be updated multiple times. It is essential to make the V2X ecosystem quantum-safe through use of “post-quantum cryptography” as well other applicable quantum technologies. This SAE EDGE™ Research Report considers the following three areas to be unsettled questions in the V2X ecosystem: How soon will quantum computing pose a threat to connected and automated vehicle technologies? What steps and measures are needed to make a V2X ecosystem “quantum-safe?” What standardization is needed to ensure that quantum technologies do not pose an unacceptable risk from an automotive cybersecurity perspective?
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