基于H.264的RCPC信道编码非平等误码保护

Unequal Error Protection Research Based on H.264 and RCPC

为了提高压缩码流在无线信道中传输的可靠性,设计了基于RCPC(Rate Compatible Punctured Convolu-tional)信道编码的非平等误码保护方案,在保证编码效率的前提下,使视频信息在无线信道传输过程中具有更强的抗差错能力。实验结果证明,不等差错保护机制的运用有效地改善了视频在无线信道系统中的传输性能,保证了视频图像序列的可靠传输,而引入自适应不等差错保护则能更有效地利用信道的容量,提高了传输效率。

In order to improve transmission security of compressed Video Stream on wireless channel, a protect scheme of non-equal error with Channel coding was proposed based on RCPC （ Rate Compatible Punctured Con- volutional）. We ensure the coding efficiency, and garantee a stronger anti-error capacity in the course of the wireless channel transmission Simulation results demonstrate that the proposed protect scheme effectively improve the transmission performance of video in wireless channel system, also ensure the reliably of video image sequence, and employ the Adaptive on-equal error protection can make more effective use of channel capacity, enhance the efficiency of transmission