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A new feedback error control scheme for block based video communication in packet switched wireless networks

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2 Author(s)
Meggers, J. ; Dept. of Comput. Sci., Tech. Hochschule Aachen, Germany ; Subramaniam, R.

This paper describes a new feedback scheme suitable for block-based video transmission as it is in use for H.261 video transmission over IP networks. The new scheme inherently provides support for highly unreliable communication links and thus improves packet-switched video transmission over wireless links. The evaluation of the new feedback scheme has been done by means of a prototype implementation, which we compare with other feedback schemes. We show how to use our new scheme with the real-time transport protocol (RTP) and give several extensions and improvements. Measurements show significant improvement in terms of bandwidth usage and user-level perception

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Computers and Communications, 1999. Proceedings. IEEE International Symposium on

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