Hatairat Kortrakulkij

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The scenario of using Automatic Repeat reQuest (ARQ) retransmission for two-way low bit-rate video communications over wireless Rayleigh fading channels is being studied. In this kind of channel, the packets are inevitably experienced errors during deep fades. The retransmissions can be used to resent such packets. During retransmissions, the video encoder(More)
In this paper, an adaptive asymmetric diamond search (AADS) for block based motion estimation is presented. The proposed method exploits adaptive search pattern based on the predicted motion vector. In addition, the accuracy of the prediction is improved by changing initial search center position. Simulation results show that the proposed algorithm can(More)
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