Title :
Queuing with distortion-control for multimedia content
Author :
Draper, Stark C. ; Wornell, Gregory W.
Author_Institution :
Dept. EECS, Massachusetts Institute of Technology, Cambridge, 02139, USA
Abstract :
There are numerous contexts in which systems need to buffer multimedia signal content. If such a buffer overflows, signal data are lost in an uncontrolled manner, which can lead to large end-to-end distortions. However, if the queued signals are distortion-tolerant, overflows can be avoided, and significant performance gains realized, by reducing the fidelity of the signals in a gradual, controlled, manner. Based on ideas of successive-approximation source coding, we design an adaptive-buffering algorithm to minimize end-to-end distortion. This algorithm performs nearly as well as a performance bound on all possible algorithms. Perhaps most importantly, the algorithm´s performance remains robust across a wide range of (unpredictable) utilization rates (input rate/output rate).
Conference_Titel :
Acoustics, Speech, and Signal Processing (ICASSP), 2002 IEEE International Conference on
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-7402-9
DOI :
10.1109/ICASSP.2002.5745018