In this thesis we study the key requirements and solutions for the feasibility and application of Ethernet-TCP/IP technology to the networks we termed Highly-Variable Real-Time Networks (HVRN). This particular class of networks poses exceptionally demanding requirements because their physical and logical topologies are both temporally and spatially variable. We devised and introduced specific mechanisms for applying Ethernet-TCP/IP to HVRNs with particular emphasis on effective and reliable modular connectivity. Using a railroad train as a reference, this work analyzes the unique requirements of HVRNs and focuses on the backbone architecture for such a system under Ethernet and TCP/IP. / Doctorat en sciences appliquées / info:eu-repo/semantics/nonPublished

Orientador: Michel Daoud Yacoub / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Elétrica e de Computação / Made available in DSpace on 2018-08-27T09:49:57Z (GMT). No. of bitstreams: 1 Silveira_LorenoMenezesda_M.pdf: 2626161 bytes, checksum: b80454b10dc90baf554cb0f37c6ba67e (MD5) Previous issue date: 2015 / Resumo: Esta dissertação apresenta uma visão da evolução das redes de telecomunicações objetivando o atendimento dos parâmetros da Qualidade de Serviço de redes IP aos requisitos de qualidade de voz das redes telefônicas de circuitos comutados. Gera também uma série de resultados úteis para planejar a introdução de novas tecnologias e de Redes de Nova Geração (NGN) para serviços de voz. Entre os resultados, introduz uma metodologia de planejamento de rede com base na experiência do autor na área. A aplicação desta metodologia é descrita em um caso de estudo sobre a introdução do serviço de voz através de uma rede IP existente. Analisa parâmetros de qualidade de serviço, requisitos de qualidade de voz e, finalmente, calcula a taxa de transferência de fluxo de dados adicional devido ao tráfego de voz. Os cálculos são baseados em um modelo de dimensionamento implementado em uma planilha do Excel. Apesar de não mostrado neste trabalho, os resultados provaram sua efetividade e consistência com a implantação de uma prestadora específica e com o comportamento subsequente da rede em cidades relevantes, como São Paulo, Rio de Janeiro e Belo Horizontes. A dissertação também apresenta modelos de dimensionamento para o tráfego de sinalização: Sistema de Sinalização Nº 7 (ISUP - Rede Digital de Serviços Integrados e BICC - Portador de Controle de chamada Independent) para uso em redes TDM (Time Division Multiplex), ATM (Asynchronous Transfer Mode) ou NGN, explorando estes modelos de aplicação para o protocolo H.248 com possível extensão a SIP, ambos usados no contexto NGN / Abstract: This dissertation provides an overview of telecommunication networks evolution in the light of compliance of IP networks Quality of Service¿s parameters with Public Switched Telephone Networks (PSTN) voice quality requirements. It also delivers a number of new results useful for planning and designing the introduction of new technologies as well as Next Generation Networks (NGN), to provide voice services. Among the results, it introduces a network planning methodology based on the author's experience in this area. The application of such methodology is depicted in a study case concerning the introduction of the voice service over an existing IP network. It analyzes Quality of Service parameters, voice quality requirements and, finally, it calculates the additional data flow throughput due to the voice traffic. The calculations are based on a dimensioning model implemented in an excel spreadsheet. Although not being shown here, the results have been proved effective and consistent with a specific carrier deployment and subsequent network behavior in relevant cities like São, Paulo, Rio de Janeiro and Belo Horizonte. This work also presents a dimensioning model for signaling traffic: Signalling System Nº 7 (ISUP ¿ Integrated Services Digital Networks and BICC - Bearer Independent Call Control) for use in TDM (Time Division Multiplex), ATM (Asynchronous Transfer Mode) or NGN networks. Furthermore, it exploits the application of the dimensioning model to H.248 protocol, suggesting how to extend it to SIP, both used in the NGN context / Mestrado / Telecomunicações e Telemática / Mestre em Engenharia Elétrica

Indiana University-Purdue University Indianapolis (IUPUI) / Mobile IP though allows mobility features to a node it suffers from signaling Latencies which are mainly incurred due to the fact that the MN itself is involved in the handover process. To overcome this problem proxy mobile IPv6(PMIPv6) was defined where the mobility signaling is taken care of by a proxy server while keeping track of the MN's movement. PMIPv6 has considerably reduced the handover latency but the demand for real time applications over the network has increased tremendously due to recent explosion of the cloud era. My thesis focuses on increasing the L3 handoff signaling efficiency by reducing the latency. This is achieved by our idea to do both the AAA authentication as well as the LMA registration in PMIPv6 at the same time. The simulation results show that our proposed approach perform better than the current PMIPv6 L3 handover signaling reducing the latency as well as packet loss.