Stereo image transmission over fading channels with multiterminal source coding

Authors:
Chadi Khirallah;Vladimir Stankovic;Lina Stankovic;Samuel Cheng
Affiliations:
Dept. of Electronic and Electrical Engineering, University of Strathclyde, Glasgow;Dept. of Electronic and Electrical Engineering, University of Strathclyde, Glasgow;Dept. of Electronic and Electrical Engineering, University of Strathclyde, Glasgow;Dept. Electrical and Computer Engineering, University of Oklahoma, Tulsa, OK
Venue:
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Year:
2009

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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.