Power-Controlled Media Streaming in the Interference-Limited Wireless Networks
BROADNETS '04 Proceedings of the First International Conference on Broadband Networks
Joint video summarization and transmission adaptation for energy-efficient wireless video streaming
EURASIP Journal on Advances in Signal Processing
Joint source-hannel distortion modeling for MPEG-4 video
IEEE Transactions on Image Processing
Unequal power allocation for JPEG transmission over MIMO systems
IEEE Transactions on Image Processing
Power management adaptation techniques for video transmission over TFRC
International Journal of Network Management
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An optimum power management scheme is proposed for intra-frame refreshed image sequences of the wireless video service in code-division multiple-access (CDMA) systems. The end-to-end distortion of H.263 video data is first modeled when the error concealment schemes are employed. This distortion model takes into account the error propagation effects caused by the motion compensation. Then, based on the model, the target bit-error rates (BERs) of the image frames are optimized in such a way that the consumed power could be minimized under the constraint of maximum distortion. To satisfy the specified target BER requirement, an optimum power management scheme is proposed. Simulation results show that the proposed scheme considerably outperforms the conventional scheme in the sense of the decoded image quality. Additionally, the effects of the imperfect power control on the performance are also investigated.