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Congestion control for streaming mediaChung, Jae Won. January 2005 (has links)
Dissertation (Ph.D.) -- Worcester Polytechnic Institute. / Keywords: streaming media; streaming transport protocol; active queue management (AQM); Internet congestion control. Includes bibliographical references (p. 236-248).
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API development for persistent data sessions support /Pailom, Chayutra. January 2005 (has links) (PDF)
Thesis (M.S. in Computer Science)--Naval Postgraduate School, March 2005. / Thesis Advisor(s): Su Wen, Arijit Das. Includes bibliographical references (p. 149 p.). Also available online.
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Telejornalismo na Amazônia: o FTP como instrumento de integração regionalBatista, Luís Augusto Pires 01 June 2010 (has links)
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Previous issue date: 2010-06-01 / Não Informada / This thesis is intended to look into the FTP (File Transfer Protocol) system on the
News Broadcasting production from stations belonging to Rede Amazônica (TV
Amazonas, TV Rondônia, TV Acre, TV Roraima and TV Amapá), at the Central de
Jornalismo (journalism Center) located in the capital of the State of Amazonas and its
effects on the routine of the community from the municipality of Manacapuru, which
has become not only consumer of information, but also its protector. As a theoretical
reference underlying Castells’ (1999, 2001, 2003) approaches, with the theory of
network society through access to information; Dizard (2000) with the theory of old
and new medias, analyzed on a time-space scale, in the context of the Amazon
Region; and Milanesi (1978) with a reflection regarding the impact influence of old
and new medias on peripheral areas, in regards to the existence of a central area.
The research, an exploratory-descriptive case study, comprises communication as a
result of a historical process which, in order to meet the society’s constantly changing
demands, produces at the same time, through science, new technologies. The
applied investigative techniques consist of document research with quantitative and
qualitative data collection survey, by using resources such as questionnaires, semistructured
interviews, semi-structured and participative observation. Unpublished and
standardized data collected in this study aimed at contributing to the successful
scientific knowledge production regarding the Amazon reality, as there is an
expectation the results may be used as reference to other areas and investigations. / Esta dissertação investiga o efeito do sistema FTP (File Transfer Protocol ou
Protocolo de Transferência de Arquivo) no processo de produção do telejornalismo
das emissoras da Rede Amazônica (TV Amazonas, TV Rondônia, TV Acre, TV
Roraima e TV Amapá), a partir da Central de Jornalismo sediada na capital do
estado no Amazonas e seus efeitos no cotidiano da comunidade do município de
Manacapuru, que passou a ser não apenas consumidora de informação, mas
também produtora dela. Como referencial teórico embasa a reflexão nas abordagens
de Castells (1999, 2001, 2003) com a teoria da sociedade em rede por meio do
acesso à informação; Dizard (2000) com a teoria das velhas e novas mídias,
analisadas, em uma escala tempo-espaço, ao contexto da região amazônica; e
Milanesi (1978) com a reflexão acerca da influência do impacto das velhas e novas
mídias em áreas periféricas, em relação à existência de uma área central. A
pesquisa, um estudo de caso de caráter exploratório-descritivo, compreende a
comunicação como resultado de um processo histórico que para atender as
demandas da sociedade em constante transformação, produz em paralelo, por meio
da ciência, novas tecnologias. As técnicas de investigação empregadas consistem
em pesquisa documental com levantamento de dados quantitativos e qualitativos,
pautadas no recurso de questionários, entrevistas semi-estruturadas, observação
semi-estruturada e participante. Os dados inéditos levantados e sistematizados
neste estudo tiveram por objetivo contribuir com o processo de produção do
conhecimento científico acerca da realidade amazônica, na expectativa dos
resultados virem a servir como referência para outras áreas e investigações.
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Signalling and scheduling for efficient bulk data transfer in circuit-switched networksGrobler, Reinette 31 May 2006 (has links)
Please read the abstract in the section 00front of this document / Dissertation (MSc (Computer Science))--University of Pretoria, 2006. / Computer Science / unrestricted
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Vilken metod kan användas för att bredda IT-system mot nya marknader? : Framtagning av en utvecklingsprocess med tillämpning i en fallstudie. / What method can be used to broaden IT systems towards new markets? : Development of a development process with application in a case study.Poyraz, Furkan, Sakalouski, Pavel January 2017 (has links)
Inom varje verksamhet förekommer det alltid någon form av projektplanering när man vill bedriva sin verksamhet på en ny marknad. Dessa typer av förberedelser görs på olika sätt och utmaningen för företagen blir att använda sig av rätt etableringsstrategi. För att lyckas med implementering av ett projekt, på respektive marknad som organisationer verkar på, är en utav framgångsfaktorerna att ha en tydlig och genomtänkt metod. Företaget Beta erbjuder molnbaserade tjänster inom tullhantering där man skapar lösningar som hjälper andra företag att hantera sina tullärenden. Aktören är etablerad på den svenska marknaden och vill prova att erbjuda sina IT-lösningar i Norge. Företaget har därför ett behov av att undersöka hur den norska marknaden ser ut, om det finns en möjlighet att bredda deras befintliga systemlösningar och i så fall hur de ska gå tillväga för att få ett fungerande system som kan kommunicera med norska tullverket. I rapporten föreslås en metod som kan användas som underlag vid utvidgning av en verksamhet till nya marknader. Utvecklingsprocessen som presenteras ska också kunna generaliseras, fungera som underlag och användas även av andra företag som ställs inför samma utmaning som Beta. Denna rapport innehåller även en analys av den norska marknaden. Det finns en jämförelse mellan delar av svenska och norska tullsystemet och en presentation av de ändringar som behöver göras utifrån skillnader som finns. Som resultat ger rapporten en tydlig bild av hur man möjligen kan gå tillväga för att ta sig an liknande problem. Författarna presenterar även ett resultat som beskriver en lösning till Betas problem. / Within each activity, there is always some kind of project planning when you want to do business in a new market. These types of preparation are done in different ways and the challenge for companies is to make use of the right establishment strategy. To succeed in implementing a project, on the respective market that organizations are working on, one of the success factors is to have a clear and thoughtful approach. The company Beta offers cloud-based customs management services, which provide solutions that help other companies handle their customs issues. Beta is established in the Swedish market and wants to try to offer their IT solutions in Norway. The company therefore has a need to investigate how the Norwegian market looks, if there is an opportunity to broaden their existing system solutions and, if so, how they should go about getting a working system that can communicate with the Norwegian customs office. The report proposes a method that can be used as a basis for expanding a business to new markets. The development process presented should also be generalized, serve as a basis, and used by other companies facing the same challenge as Beta. This report also contains an analysis of the Norwegian market. There is a comparison between parts of the Swedish and Norwegian customs system and a presentation of the changes that need to be made based on differences. As a result, the report provides a clear picture of how one might possibly be able to address similar problems. The project members also present a result describing a solution to Beta's problems.
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Characterisation of end-to-end performance for web-based file server respositories /Mascarenhas da Veiga Alves, Manoel Eduardo. January 2001 (has links) (PDF)
Thesis (M.Eng.Sc.)--University of Adelaide, Dept. of Electrical and Electronic Engineering, 2001. / Bibliography: leaves 128-135.
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Characterisation of end-to-end performance for web-based file server respositoriesMascarenhas da Veiga Alves, Manoel Eduardo. January 2001 (has links) (PDF)
Bibliography: leaves 128-135. Investigates the behaviour of TCP bulk file transfer application sessions in a broadband access environment. Introduces some concepts for evaluating network behaviour: a path instability parameter for analyzing different TCP connections; a minimum RTT delay and a minimum typical path for estimating path characteristics between a client and application servers.
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API development for persistent data sessions supportPailom, Chayutra 03 1900 (has links)
Approved for public release, distribution is unlimited / This thesis studies and discusses the development of the API, called the persistency API, for supporting the persistent data sessions. Without persistent session support, network applications often need to be restarted from the beginning when intermittent physical connection loss happens. Application programmers can use the persistency API to achieve the service continuity. The persistency API provides the interface that allows a program to continue retrieve data from the point the connection is lost after the physical connection is restored. The focus of this thesis is to develop a generalized persistency API that supports various types of applications. This thesis studies the persistent session support for two types of transport protocols, TCP and UDP, which are used by major network applications. An application that performs text file and video file transfer is implemented to demonstrate the persistent data transfer sessions for TCP and UDP, respectively. The study shows that the proposed APIs can support the data transfer continuity in the reconnection process. / Captain, Royal Thai Army
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Congestion Control for Streaming MediaChung, Jae Won 18 August 2005 (has links)
"The Internet has assumed the role of the underlying communication network for applications such as file transfer, electronic mail, Web browsing and multimedia streaming. Multimedia streaming, in particular, is growing with the growth in power and connectivity of today's computers. These Internet applications have a variety of network service requirements and traffic characteristics, which presents new challenges to the single best-effort service of today's Internet. TCP, the de facto Internet transport protocol, has been successful in satisfying the needs of traditional Internet applications, but fails to satisfy the increasingly popular delay sensitive multimedia applications. Streaming applications often use UDP without a proper congestion avoidance mechanisms, threatening the well-being of the Internet. This dissertation presents an IP router traffic management mechanism, referred to as Crimson, that can be seamlessly deployed in the current Internet to protect well-behaving traffic from misbehaving traffic and support Quality of Service (QoS) requirements of delay sensitive multimedia applications as well as traditional Internet applications. In addition, as a means to enhance Internet support for multimedia streaming, this dissertation report presents design and evaluation of a TCP-Friendly and streaming-friendly transport protocol called the Multimedia Transport Protocol (MTP). Through a simulation study this report shows the Crimson network efficiently handles network congestion and minimizes queuing delay while providing affordable fairness protection from misbehaving flows over a wide range of traffic conditions. In addition, our results show that MTP offers streaming performance comparable to that provided by UDP, while doing so under a TCP-Friendly rate."
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Optimala inställningar för MTU vid filöverföring : En utredning i Linuxmiljö baserad på protokoll och filstorlekRoskvist, Filip, Roskvist, Anton January 2012 (has links)
Denna uppsats behandlar ämnet filöverföring i ett nätverk. Fokus för arbetet har varit att undersöka MTU:ns inverkan på överföringshastigheten vid filöverföringar baserat på vilket protokoll som används och storleken på filerna som överförs. I arbetet har ett flertal experiment genomförts som syftat till att utreda detta, samt att finna vilket protokoll som överlag presterar bäst baserat på omständigheterna för överföringen. Olika filöverföringsprotokoll, fildistributionsprotokoll, MTU:er samt filstorlekar har testats för att finna vad som resulterar i högst överföringshastighet vid filöverföring över ett Ethernetnätverk. Resultaten visar på att en hög MTU uppnår högst överföringshastighet vid överföring av stora filer, men att en standard-MTU fungerar bättre för att överföra mycket små filer. / This report concerns the subject of file transfer. The focal point of the report is to study the effect that the MTU has on the speed of file transfers based on the protocol used and the size of the transferred files. During the course of the work, several experiments have been performed in order to determine this, as well as to find which protocol gives the overall best result based on the circumstances of the file transfers. Various file transfer protocols, file distribution protocols, MTUs and file sizes have been tested in order to find what results in the best file transfer speed over an Ethernet based network. The results show that a high MTU has the best performance when transferring large files, while a standard MTU gives better results for transferring very small files.
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