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Interactive video coding and transmission over wired-to-wireless IP networks using an edge proxy

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2 Author(s)
Yong Pei ; Dept. of Electr. & Comput. Eng., Miami Univ., Coral Gables, FL, USA ; Modestino, J.W.

In this paper, we address the problem of enabling robust interactive video coding and transmission over heterogeneous wired-to-wireless IP networks. We propose the use of an FEC coding scheme employing Reed-Solomon (RS) codes and rate-compatible punctured convolutional (RCPC) codes to protect the video data from packet loss and bit errors, respectively. Furthermore, we apply an end-to-end architecture using an edge proxy in a mobile support station to implement differential error protection for the corresponding channel impairments expected on the two networks. Results indicate that with an appropriate joint source-channel coding approach and the use of an edge proxy, FEC-based error-control techniques together with passive error-recovery techniques can significantly improve the effective video throughput and lead to acceptable video delivery quality over time-varying heterogeneous wired-to-wireless IP networks.

Published in:

Multimedia and Expo, 2003. ICME '03. Proceedings. 2003 International Conference on  (Volume:2 )

Date of Conference:

6-9 July 2003