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Stereo image transmission over fading channels with multiterminal source coding

Khirallah, C. and Stankovic, Vladimir M. and Stankovic, L. and Cheng, S. (2009) Stereo image transmission over fading channels with multiterminal source coding. In: IEEE International Conference on Communications, 2009. IEEE, pp. 3872-3876. ISBN 978-1-4244-3435-0

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Abstract

This paper addresses the problem of wireless delivery of a captured scene from two cameras, which do not communicate with each other, to a central point for joint decoding. We exploit correlation among two camera views using distributed source coding and use complete complementary (CC) data spreading to combat multiple access interference and noise even when the transmitters are de-synchronized. Our distributed source coding scheme is based on uniform scalar quantization in the DCT domain and non-asymmetric Slepian-Wolf coding via turbo codes. The non-asymmetric Slepian-Wolf scheme enables efficient trade-off between the transmission rates of the two cameras. Simulation results indicate that the proposed system outperforms significantly two independently JPEG-encoded streams at low transmission rates.