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ISCAS
2003
IEEE

Real-time scheduling on scalable media stream delivery

10 years 6 months ago
Real-time scheduling on scalable media stream delivery
Scalable streams provide a layered representation for transmitting media contents over a channel with packet losses and variable delay. In general, real-time streaming scalable media to audience has timing constraints, and different layers in a frame have different importance to the playback quality reconstructed in client. In this paper, we proposes an efficient and simple real-time scheduling algorithm, Layer-Based Earliest Deadline First (LB-EDF) algorithm, which decides how to transmit/re-transmit video packets at any given time for delivery of scalable streaming media over a lossy channel. Besides realtime constraint, unequal priorities of scalable source bitstream in different layers are taken into account in the proposed algorithm. This guarantees the better usage of available bandwidth and the smoother playback. Simulated results show that, with the proposed approach, the playback quality has a greatly improvement.
Kui Gao, Wen Gao, Simin He, Peng Gao, Yuan Zhang
Added 04 Jul 2010
Updated 04 Jul 2010
Type Conference
Year 2003
Where ISCAS
Authors Kui Gao, Wen Gao, Simin He, Peng Gao, Yuan Zhang
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