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Causal Transmission of Colored Source Frames over a Packet Erasure Channel

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3 Author(s)
Ying-zong Huang ; Dept. of Electr. Eng. & Comput. Sci., Massachusetts Inst. of Technol., Cambridge, MA, USA ; Kochman, Y. ; Wornell, Gregory W.

We propose a linear predictive quantization system for causally transmitting parallel sources with temporal memory (colored frames) over an erasure channel. By optimizing within this structure, we derive an achievability result in the high-rate limit and compare it to an upper bound on performance. The proposed system subsumes the well-known PCM and DPCM systems as special cases. While typically DPCM performs well without erasures and PCM suffers less with many erasures, we show that the proposed solution improves performance over both under all severities of erasures, with unbounded improvement in some cases.

Published in:

Data Compression Conference (DCC), 2010

Date of Conference:

24-26 March 2010