Retransmission-Based Error Control for Continuous Media Applications (1996)
| Venue: | In Proceedings of the Sixth International Workshop on Network and Operating System Support for Digital Audio and Video |
| Citations: | 71 - 3 self |
BibTeX
@INPROCEEDINGS{Papadopoulos96retransmission-basederror,
author = {Christos Papadopoulos},
title = {Retransmission-Based Error Control for Continuous Media Applications},
booktitle = {In Proceedings of the Sixth International Workshop on Network and Operating System Support for Digital Audio and Video},
year = {1996},
pages = {5--12}
}
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Abstract
Abstract 1 Retransmission-based error recovery has been, in general, considered inappropriate for continuous media (CM) applications, because of its latency. However, retransmission is still attractive because it requires minimal network bandwidth, (less than either peak-bandwidth allocation or FEC for bursty streams) and processing cost. Despite its latency, we believe that retransmission can be used successfully in many cases, especially if playout buffering is employed. We have designed and implemented a retransmissionbased error control scheme for CM applications, which aims to provide the best possible reliability at a minimal cost, without violating the application’s timing constraints. We have enhanced selective-repeat retransmission with: (1) playout buffering to increase the time available for recovery, (2) gap-based rather than timer-based loss detection to minimize loss detection latency, (3) implicit expiration of sender retransmission buffers to eliminate acknowledgments, (4) conditional retransmission requests to avoid triggering late, unnecessary retransmissions, and (5) data integrity information delivery to the application to aid in concealment. Experimental results show that the mechanism significantly reduces observed loss without violating the application’s delay constraints. 1.
