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Heterogeneous networking for beyond 3G system in a high-speed train environment : investigation of handover procedures in a high-speed train environment and adoption of a pattern classification neural-networks approach for handover managementOng, Felicia Li Chin January 2016 (has links)
Based on the targets outlined by the EU Horizon 2020 (H2020) framework, it is expected that heterogeneous networking will play a crucial role in delivering seamless end-to-end ubiquitous Internet access for users. In due course, the current GSM-Railway (GSM-R) will be deemed unsustainable, as the demand for packet-oriented services continues to increase. Therefore, the opportunity to identify a plausible replacement system conducted in this research study is timely and appropriate. In this research study, a hybrid satellite and terrestrial network for enabling ubiquitous Internet access in a high-speed train environment is investigated. The study focuses on the mobility management aspect of the system, primarily related to the handover management. A proposed handover strategy, employing the RACE II MONET and ITU-T Q.65 design methodology, will be addressed. This includes identifying the functional model (FM) which is then mapped to the functional architecture (FUA), based on the Q.1711 IMT-2000 FM. In addition, the signalling protocols, information flows and message format based on the adopted design methodology will also be specified. The approach is then simulated in OPNET and the findings are then presented and discussed. The opportunity of exploring the prospect of employing neural networks (NN) for handover is also undertaken. This study focuses specifically on the use of pattern classification neural networks to aid in the handover process, which is then simulated in MATLAB. The simulation outcomes demonstrated the effectiveness and appropriateness of the NN algorithm and the competence of the algorithm in facilitating the handover process.
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Развитие сетевого взаимодействия в системе среднего образования: анализ муниципальных практик и технологии совершенствования : магистерская диссертация / Development of network interaction in the secondary education system: analysis of municipal practices and improvement technologiesНемировский, М. В., Nemirovsky, M. V. January 2020 (has links)
Магистерская диссертация посвящена изучению муниципальных практик сетевого взаимодействия в общеобразовательных организациях г. Екатеринбурга и разработке технологий их развития. В работе рассмотрены концептуальные и нормативно-правовые основы развития сетевого взаимодействия в системе среднего образования в Российской Федерации. В ней представлены результаты эмпирического исследования, посвященного практикам сетевого взаимодействия в среднем общем образовании г. Екатеринбурга. Автор диссертации предлагает рекомендации и проект по совершенствованию организации сетевого взаимодействия в среднем общем образовании г. Екатеринбурга. / The master's dissertation is devoted to the study of municipal practices of network interaction in education organizations in Yekaterinburg and development of technologies for their development. The dissertation considers the conceptual and regulatory framework for the development of network interaction in the secondary education system in the Russian Federation. It presents the results of an empirical study on the practices of networking in secondary education in Yekaterinburg. The author of the dissertation offers recommendations and a project to improve the organization of network interaction in secondary education in Yekaterinburg.
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