A Screen Sharing Broadcast Scheme in Distance Learning

VNC is popular and stable open source remote control software. It is widely used in many applications, such as the screen sharing part of a distance learning supporting system. VNC is designed originally for one-to-one remote control application, which means that the bandwidth constraint is not seriously considered. In many distance-learning applications, the screen image is broadcasted to many students, thus the performance become degraded. This paper focuses on this problem, and proposes an algorithm to improve the screen sharing broadcast scheme on VNC systems and makes it more suitable for distance-learning applications.

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