4 research outputs found
Development of a Graduate Course on the Transition to Internet Protocol Version 6
Internet and mobile connectivity has grown tremendously in the last few decades, creating an ever increasing demand for Internet Protocol (IP) addresses. The pool of Internet Protocol version 4 (IPv4) addresses, once assumed to be more than sufficient for every person on this planet, has reached its final stages of depletion. With The Internet Assigned Numbers Authority’s (IANA) global pools depleted, and four of the five Regional Internet Registries (RIR) pools down to the their last /8 block, the remaining addresses will not last very long.
In order to ensure continuous growth of the internet in the foreseeable future, we would need a newer internet protocol, with a much larger address space. Specifically, with that goal in mind the Internet Protocol version 6 (IPv6) was designed about two decades ago. Over the years it has matured, and has proven that it could eventually replace the existing IPv4.
This thesis presents the development a graduate level course on the transition to IPv6. The course makes an attempt at understanding how the new IPv6 protocol is different than the currently used IPv4 protocol. And also tries to emphasize on the options existing to facilitate a smooth transition of production networks from IPv4 to IPv6
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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 management
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
Creation of value with open source software in the telecommunications field
Tese de doutoramento. Engenharia Electrotécnica e de Computadores. Faculdade de Engenharia. Universidade do Porto. 200