xor喷泉代码的度分布:理论推导与分析

2010 16th Asia-Pacific Conference on Communications (APCC) Pub Date : 2010-10-01 DOI:10.1109/APCC.2010.5679773

Lucie Nodin, A. Apavatjrut, C. Goursaud, J. Gorce

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引用次数: 6

摘要

在这项工作中，我们专注于在无线传感器网络中使用网络编码，其中数据已经在源节点上使用喷泉代码编码，特别是LT或Raptor代码。为了获得高效的解码过程，这些码具有一定的度分布。然而，在这样的数据包上添加一层网络编码会引发度分布的扭曲。因此，解码过程所需的数据包开销会显著增加。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Degree distribution of XORed fountain codes: Theoretical derivation and analysis

In this work, we focus on the use of network coding in a wireless sensor network where data is already encoded at the source node with fountain codes, in particular LT or Raptor codes. These codes have a specific degree distribution to follow in order to obtain an efficient decoding process. However, adding a layer of network coding on such packets triggers a distorsion of the degree distribution. Consequently, the packet overhead needed for the decoding process can grow significantly.

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2010 16th Asia-Pacific Conference on Communications (APCC)

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