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Title:
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IMPROVING THE PERFORMANCE OF BIGBLUEBUTTON
FOR TEACHING ONLINE COURSES |
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Author(s):
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Christian Uhl and Bernd Freisleben |
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ISBN:
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978-989-8704-34-4 |
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Editors:
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Pedro Isaías and Hans Weghorn |
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Year:
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2021 |
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Edition:
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Single |
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Type:
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Full |
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First Page:
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126 |
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Last Page:
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136 |
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Language:
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English |
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Cover:
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Full Contents:
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click to dowload 
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Paper Abstract:
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BigBlueButton (BBB) is a web conferencing system designed for online learning. It consists of a set of pre-configured
open-source software tools to realize video conferencing functionality primarily for teaching purposes. Due to the
COVID-19 pandemic, our university decided to roll out BBB for the university's educational activities in the first
nationwide lock-down in early 2020. Based on our experiences in deploying, operating, and using BBB at our university
in the last 12 months, we present suggestions on how the services provided by BBB can be improved to meet the
technical demands identified during online lecturing at our university. Our suggestions include the introduction of
simulcast, improvements of encoding and muxing video feeds, and the 'Last-N' algorithm for video feed pagination. To
demonstrate the benefits of the presented improvements, we experimentally evaluated most of them based on our own
prototypical implementations. |
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