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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

An?lise de desempenho na rede metropolitana de sa?de da Universidade Federal do Rio Grande do Norte : um dimensionamento aplicado a telemedicina e a telessa?de utilizando QoS baseado no padr?o IEEE 802.1Q

Medeiros, Ronaldo Maia de 14 November 2011 (has links)
Made available in DSpace on 2014-12-17T14:55:52Z (GMT). No. of bitstreams: 1 RenataPB_DISSERT.pdf: 1489254 bytes, checksum: 88fdf1027875fb6b83dbe203da3c24f7 (MD5) Previous issue date: 2011-11-14 / It s notorious the advance of computer networks in recent decades, whether in relation to transmission rates, the number of interconnected devices or the existing applications. In parallel, it s also visible this progress in various sectors of the automation, such as: industrial, commercial and residential. In one of its branches, we find the hospital networks, which can make the use of a range of services, ranging from the simple registration of patients to a surgery by a robot under the supervision of a physician. In the context of both worlds, appear the applications in Telemedicine and Telehealth, which work with the transfer in real time of high resolution images, sound, video and patient data. Then comes a problem, since the computer networks, originally developed for the transfer of less complex data, is now being used by a service that involves high transfer rates and needs requirements for quality of service (QoS) offered by the network . Thus, this work aims to do the analysis and comparison of performance of a network when subjected to this type of application, for two different situations: the first without the use of QoS policies, and the second with the application of such policies, using as scenario for testing, the Metropolitan Health Network of the Federal University of Rio Grande do Norte (UFRN) / ? not?rio o avan?o das redes de computadores nas ?ltimas d?cadas, seja em rela??o ?s taxas de transmiss?o, ao n?mero de dispositivos interconectados ou mesmo ?s aplica??es existentes. Em paralelo, percebemos tamb?m este avan?o nos diversos segmentos da ?rea de automa??o, tais como: industrial, comercial e residencial. Em uma de suas ramifica??es, encontram-se as redes hospitalares, que podem fazer uso de uma gama de servi?os, que v?o desde o simples cadastro de pacientes at? uma cirurgia feita por um rob? sob a supervis?o de um m?dico especialista. No contexto dos dois universos, aparecem as aplica??es em Telemedicina e Telessa?de, que trabalham com a transfer?ncia, em tempo real, de imagens de alta resolu??o, som, v?deo e dados de pacientes. Surge ent?o um problema, visto que as redes de computadores, inicialmente criadas para a transfer?ncia de dados menos complexos, est? sendo agora usada por um servi?o que envolve altas taxas de transfer?ncia e apresenta requisitos em rela??o ? qualidade do servi?o (QoS) oferecido pela rede. Desta forma, este trabalho realiza uma an?lise e compara??o de desempenho de uma rede quando submetida a esse tipo de aplica??o, para duas situa??es distintas: a primeira sem o uso de pol?ticas de QoS, e a segunda com a aplica??o de tais pol?ticas, usando como cen?rio para os testes, a Rede Metropolitana de Sa?de da Universidade Federal do Rio Grande do Norte (UFRN)

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