Open Access

Combined Wavelet Video Coding and Error Control for Internet Streaming and Multicast

EURASIP Journal on Advances in Signal Processing20032003:925839

https://doi.org/10.1155/S1110865703210106

Received: 23 December 2001

Published: 30 January 2003

Abstract

This paper proposes an integrated approach to Internet video streaming and multicast (e.g., receiver-driven layered multicast (RLM) by McCanne) based on combined wavelet video coding and error control. We design a packetized wavelet video (PWV) coder to facilitate its integration with error control. The PWV coder produces packetized layered bitstreams that are independent among layers while being embedded within each layer. Thus, a lost packet only renders the following packets in the same layer useless. Based on the PWV coder, we search for a multilayered error-control strategy that optimally trades off source and channel coding for each layer under a given transmission rate to mitigate the effects of packet loss. While both the PWV coder and the error-control strategy are new—the former incorporates embedded wavelet video coding and packetization and the latter extends the single-layered approach for RLM by Chou et al.—the main distinction of this paper lies in the seamless integration of the two parts. Theoretical analysis shows a gain of up to 1 dB on a channel with 20% packet loss using our combined approach over separate designs of the source coder and the error-control mechanism. This is also substantiated by our simulations with a gain of up to 0.6 dB. In addition, our simulations show a gain of up to 2.2 dB over previous results reported by Chou et al.

Keywords

wavelet video coding error control internet streaming multicast PWV

Authors’ Affiliations

(1)
Department of Electrical Engineering, Texas A&M University

Copyright

© Copyright © 2003 Hindawi Publishing Corporation 2003