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Performance of packet video with combined error recovery and concealment

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2 Author(s)
Ramamurthy, G. ; C&C Res. Labs., NEC USA, Princeton, NJ, USA ; Raychaudhuri, D.

In this paper we analyze the performance of a video transport across an ATM network that uses both retransmission and concealment to recover from errors due to cell loss resulting from congestion. We limit the number of retransmission attempts to one. If a frame is still in error after one retransmission attempt, the remaining errors are concealed. We obtain analytic expressions for the peak signal to noise ratio (PSNR) with combined retransmission and concealment. The analysis shows that significant improvement in the signal to noise ratio of the reconstructed picture can be achieved if retransmission and concealment are used together

Published in:

INFOCOM '95. Fourteenth Annual Joint Conference of the IEEE Computer and Communications Societies. Bringing Information to People. Proceedings. IEEE

Date of Conference:

2-6 Apr 1995