Schemes for user-interest controlled video bandwidth adaptation in a collaborative workspace environment

Abstract

In this paper, bandwidth-sharing schemes controlled by user-interest are presented as an approach to eficient use of resources in a collaborative workspuce environment. Two schemes for group videoconferencing are presented and evaluated. Monitoring of user-behavior and message passing to adapt video bandwidth allocation to user needs are key features of both schemes, in which each user's client reports interest in other users to enable them to determine their relative importance. Experimental results using a protoQpe implementation to sample user-behavior show that one scheme is bener suited for high, and the other f o r low bandwidth-limit scenarios. Measurements also show that the message passing will not add a substantial amount of bandwidth.

Untitled

“…Evaluations that focus on the resulting network traffic are still sparse and focus on the audio and video components of these systems, see, e.g., [15], [16].An individual study evaluates a custom designed system called A-View in terms of overall bandwidth requirements, but does not provide detailed traffic statistics [17]. Prior implementations performed similar evaluations, see, e.g., [18]. Vendors of particular solutions also commonly offer the overall bandwidth requirements of their products, though again without a more detailed view of the produced traffic.…”