可靠无线视频传输的速率自适应选择段分配

Int. J. Digit. Multim. Broadcast. Pub Date : 2012-06-27 DOI:10.1155/2012/160521

S. Nazir, D. Vukobratović, V. Stanković, Ivan Andonovic

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引用次数: 1

摘要

基于H.264/AVC的数据分区特性，提出了一种可靠的视频通信系统，用于创建分层流，并使用LT码进行擦除保护。提出的速率自适应选择段分配(RASSA)方案是一种适应不同信道条件的低复杂度方案。对H.264/AVC切片数据进行了比较。仿真结果表明，与优化后的不等、等误差保护方案相比，该方案具有一定的竞争力。仿真结果还表明，在信道条件变化的不利影响下，仍能保持高视觉质量的视频传输，并能减少解码失败的次数。

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Rate Adaptive Selective Segment Assignment for Reliable Wireless Video Transmission

A reliable video communication system is proposed based on data partitioning feature of H.264/AVC, used to create a layered stream, and LT codes for erasure protection. The proposed scheme termed rate adaptive selective segment assignment (RASSA) is an adaptive low-complexity solution to varying channel conditions. The comparison of the results of the proposed scheme is also provided for slice-partitioned H.264/AVC data. Simulation results show competitiveness of the proposed scheme compared to optimized unequal and equal error protection solutions. The simulation results also demonstrate that a high visual quality video transmission can be maintained despite the adverse effect of varying channel conditions and the number of decoding failures can be reduced.

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Int. J. Digit. Multim. Broadcast.

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