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Error resilient video multicast using Randomized Distributed Space Time Codes

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5 Author(s)
Alay, O. ; Dept. of Electr. & Comput. Eng., Polytech. Inst. of NYU, Brooklyn, NY, USA ; Pei Liu ; Yao Wang ; Erkip, E.
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In this paper we study a two-hop cooperative transmission scheme where multiple relays forward the data simultaneously using Randomized Distributed Space Time Codes (R-DSTC). We propose to integrate this randomized cooperative transmission with layered video coding and packet level Forward Error Correction (FEC) to enable error resilient video multicast. Data rates in both hops as well as the FEC rate are adopted to maximize the video quality. Our results show that while rate-adaptive direct transmission provides better video quality than conventional multicast, randomized cooperative scheme outperforms both strategies significantly.

Published in:

Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on

Date of Conference:

14-19 March 2010