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Noncausal Error Control for Video Streaming Over Wireless Packet Networks

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1 Author(s)
Bajic, I.V. ; Sch. of Eng. Sci., Simon Fraser Univ., Burnaby, BC

Video streaming systems usually employ a reasonably large receiver buffer to deal with jitter. The existence of such a buffer allows us to implement noncausal algorithms for video processing at the receiver. In this paper, we describe an error control scheme that takes advantage of this fact, and employs a non-causal error-concealment algorithm. We use the knowledge of the packet-loss realization for the previously transmitted data to adjust the transmission strategy for the future data, knowing that this future data will be used to conceal the data in the previously lost packets. We demonstrate that such a strategy can be several times more energy efficient than ARQ

Published in:

Multimedia, IEEE Transactions on  (Volume:8 ,  Issue: 6 )

Date of Publication:

Dec. 2006

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