Browsing by Author "Stanton, Michael"

Now showing 1 - 4 of 4
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    A Software-Based Solution for Distributing and Displaying UHD Video Content over Packet Networks with Applications to Telemedicine and Culture
    (2013-11-30) Ciuffo, Leandro; Filho, Souza; Aquino Junior, Lucenildo; Stanton, Michael; Reis, Clayton; Malaguti, Alvaro; Martins, Graciela; Messina, Luiz
    Since 2009, RNP has participated in demonstrations related to streaming ultra-high-definition (UHD) content over packet networks. However, working UHD media requires the use of specialized equipment that usually is expensive and has limited availability in developing markets like Brazil. This has led RNP to foster the development of national technology for 4K equipment. Since 2011, RNP has funded a research group to develop a low-cost solution for 4K video-player and streamer. This approach relies on an architecture of distributed and parallelized software components that enables the building of 4K systems using COTS (commercial off-the-shelf) hardware. This represents an alternative to traditional 4K systems, presenting a better cost effectiveness ratio and may be useful to facilitate the large-scale deployment of such systems, especially in contexts where access to technological innovation is limited. In 2013, a pilot project funded by the Brazilian Ministry of Culture is deploying the RNP-funded 4K player/streamer in a set of six cinemas connected to the RNP backbone. Also this year, it was possible to attach a 4K camcorder to our layer/streamer, enabling the live streaming of 4K content. This was first used to stream an open-heart surgical procedure from a university hospital, member of the Telemedicine University Network RUTE [MCTI], to a visualization room, both located in the Brazilian city of Natal, around 30km apart. This paper presents this low-cost software-based solution for 4K player/streamer, in addition to describing the two aforementioned use cases.
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    Creating A Large Scale Wireless Network with Scifi
    (2014-11) Magalhães, Luiz Claudio Schara; Balbi, Helga Dolorico; Feferman, Daniel Lazkani; Valle, Rafael De Tommaso do; Stanton, Michael
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    SCIFI – A Software-Based Controller for Efficient Wireless Networks
    (2013-11-13) Magalhães, Luiz Claudio Schara; Balbi, Helga Dolorico; Corrêa, Cosme; Valle, Rafael De Tommaso do; Stanton, Michael
    SCIFI is an open source software wireless controller. Large scale wireless networks that use low cost (SOHO) Access Points are hard to install and run due to the complexity of configuring and monitoring many APs with a distributed interface, coupled with the difficulty of creating a good network configuration with no help from the system. On the other hand, hardware controllers and their compatible APs are too expensive, proprietary and ultimately tie the buyer to a single vendor. SCIFI allows the use of inexpensive hardware to create large scale wireless installations. This paper describes the SCIFI algorithms, its interface, the current deployment at UFF and the future work planned for SCIFI.
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    Use of Subfluvial Optical Cable in a Region Without Land-Based Infrastructure – a Project to Deploy Advanced Communications in the Amazon Region
    (2013-11-30) Grizendi, Eduardo; Stanton, Michael
    For several years, terrestrial optical cable has been deployed along highways, railways and electric power transmission lines. These land routes have been used to support national and regional backbones of telecommunications networks, in particular, Internet backbones. To complement these, there is massive use of submarine optical cables for intercontinental connection of national telecommunications networks, giving them worldwide reach. However, in many countries, there are still regions where no such land routes exist, notably in areas of difficult access by land and of low population density. Some of these regions have, in the rivers that traverse them, a common solution to meet diverse society needs. One of them is the Amazon region of Northern Brazil and some neighboring countries, where there are few roads serving the main cities and where the population lives mainly along the banks of the great rivers that cross it. This paper aims to highlight the alternative of deployment of optical routes along riverbeds in regions where there are few or no roads, railways or even electric power transmission lines, and to present a Brazilian project, still in its early stages, of the deployment of a set of optical cables along the courses of its major rivers - the Amazon, Negro and Solimões. It is hoped that this approach may serve as an example for large river basins in other continents with difficult land based access.