Abstract
This paper describes how to use an Adaptive Forward Error Correction (AFEC) algorithm to efficiently protect the critical data areas of compressed headers and UDP-Lite packets for data transport in a radio link layer of a wireless connection. Augmented with RoHC and UDP-Lite, for H.264 video transmissions over wireless channels in a heterogeneous wired-wireless environment, the erroneous packet payloads can be useful and better able to cope with lost packets (native UDP case), by adopting some of the erasure and error resilient modes in H.264. The context transfer during inter/intra handover is also discussed. Simulations demonstrated that the proposed scenario significantly improves the PSNR performance and video quality.
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Project (Nos. FP6-IST-2003-506997 and FP6-IST-2005-026943) supported partially by the European Information Society Technologies Framework Programme 6 Integrated Project: “Daidalos” (European IST Project: Daidalos, 2003∼2008)
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Chen, Zk. An adaptive FEC to protect RoHC and UDP-Lite H.264 video critical data. J. Zhejiang Univ. - Sci. A 7, 910–918 (2006). https://doi.org/10.1631/jzus.2006.A0910
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DOI: https://doi.org/10.1631/jzus.2006.A0910