Abstract
Abstract—In this paper, an adaptive layered hybrid ARQ scheme for scalable video transmission is proposed. The layered hybrid ARQ scheme is performed based on group of pictures (GOP). The sender dynamically adjusts the transmission decisions according to the feedback of transmission results and the channel condition. Meanwhile, the transmission time management is also adopted. The earliest start time and the latest end time of transmission procedure for each GOP are introduced to limit the buffer size and control the transmission delay. Simulation results show that the proposed scheme performs better than the conventional layered hybrid ARQ scheme in terms of average PSNR of reconstructed video in a wide range of packet loss rate over bandwidth-constrained networks.
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