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A novel unequal error protection algorithm using improved expanding window fountain codes

机译:一种新颖的不等误差保护算法,使用改进的展开窗口喷泉码

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In the world of multimedia communication, there are lots of scenarios which require a higher protection level for some important data. On the basis of the expanding window fountain (EWF) codes, a new unequal error protection algorithm based on fountain codes is proposed in this paper. The higher priority protection bits are chosen as the input set of the fountain code with degree 1 and a portion of bits with degree 2. The EWF algorithm is still employed to encode the rest bits, which has greater than 2 degree distribution. Our algorithm not only improves the performance of less important bit, at the same time, it also improves the performance of the more important bit. The simulation results show that, compared with the previous expanding window fountain codes, the proposed algorithm can provide a superior unequal error protection.
机译:在多媒体通信的世界中,有很多方案需要一些重要数据的保护级别。 在膨胀窗口喷泉(EWF)代码的基础上,本文提出了一种基于喷泉码的新不等误差保护算法。 选择较高的优先级保护位作为具有1度的电网代码的输入组,以及具有学位的比特的一部分。仍然采用EWF算法来编码具有大于2度分布的静止比特。 我们的算法不仅提高了不太重要的位的性能,同时也提高了更重要的位的性能。 仿真结果表明,与先前的展开窗口码码相比,所提出的算法可以提供优越的不等误差保护。

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