Faces in the clouds: long-duration, multi-user, cloud-assisted video conferencing
| Autor: | David Griffin, Ian Kegel, Tim Stevens, Doug Williams, Raul Landa, Richard G. Clegg, Peter Pietzuch, Peter Hughes, Miguel Rio |
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| Přispěvatelé: | Engineering & Physical Science Research Council (EPSRC) |
| Rok vydání: | 2017 |
| Předmět: |
Computer Networks and Communications
Computer science End user business.industry 05 social sciences 0507 social and economic geography Overlay network 020206 networking & telecommunications Cloud computing 02 engineering and technology computer.software_genre Computer Science Applications Videoconferencing User experience design Hardware and Architecture Server 0202 electrical engineering electronic engineering information engineering Quality of experience business 050703 geography Host (network) computer Software Information Systems Computer network |
| Popis: | Multi-user video conferencing is a ubiquitous technology. Increasingly end-hosts in a conference are assisted by cloud-based servers that improve the quality of experience for end users. This paper evaluates the impact of strategies for placement of such servers on user experience and deployment cost. We consider scenarios based upon the Amazon EC2 infrastructure as well as future scenarios in which cloud instances can be located at a larger number of possible sites across the planet. We compare a number of possible strategies for choosing which cloud locations should host services and how traffic should route through them. Our study is driven by real data to create demand scenarios with realistic geographical user distributions and diurnal behaviour. We conclude that on the EC2 infrastructure a well chosen static selection of servers performs well but as more cloud locations are available a dynamic choice of servers becomes important. |
| Databáze: | OpenAIRE |
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