Prioritized admission control in multimedia network-based e-Learning

Abstract

Current network technology has enabled a revolutionary change in teaching and learning. Classrooms and libraries are no longer the only places to study. As more and more information are put on Internet for sharing, web-based e-learning becomes popular. Especially with the advancement of multimedia technology, traditional teacher-centered learning moves to student-centered, with more flexibility in time and place. This paper discusses the network call admission control problem with multimedia network-based e-learning. Many multimedia data are compressed with scalable coding scheme, where different layers of the information have different importance. At the receiver end in decoding, we can adapt the connection between students and teacher in degraded mode, in order to admit more users and achieve higher link utilization. This prioritized adaptation scheme can be greatly useful when network bandwidth is stringent in congested conditions. © Springer-Verlag 2004.