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联合HARQ与H.264的无线视频传输

DOI: 10.13190/jbupt.200801.79.071, PP. 79-83

Keywords: 混合自动重传,数据分割,不均等错误保护,均等错误保护

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Abstract:

为了改善H.264码流在无线环境中传输的鲁棒性,提出了一种利用混合自动重传(HARQ)技术的视频传输方案.该方案根据H.264数据分割得到的不同优先级的数据分区,采用不同的HARQ重传方案实现不均等错误保护.仿真结果表明,在高误码率的信道环境下,采用HARQ技术进行视频传输可以显著提高解码图像的质量,在相同带宽下,其性能明显优于均等错误保护方案.

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