关于不规则RA码的无速率特性

2011 IEEE Workshops of International Conference on Advanced Information Networking and Applications Pub Date : 2011-03-22 DOI:10.1109/WAINA.2011.49

Rong Sun, Jingwei Liu, Pingli Zhang, B. Bai

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引用次数: 3

摘要

本文介绍了系统不规则RA码的构造。编码线用于描述IRA代码的图结构。分析了IRA码的两种交织策略，证明了两种交织策略是等价的。此外，还显示了IRA码的无速率特性。对不同速率的IRA码在二进制擦除信道中的性能进行了仿真。仿真结果表明，所设计的IRA码容量达到了要求。分析了IRA码的误差层性能，提出了一种改进的编码方法来降低IRA码的误差层。

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On the Rateless Character of Irregular RA Codes

This paper introduces the construction of systematic irregular RA codes. The encoding line is used to describe the graph structure of IRA codes. Two interleaving strategies for IRA codes are analyzed and it is shown that the two interleaving strategies are equal. The rateless character of IRA codes is also shown. The performances of IRA codes with different rate in binary erasure channel are simulated. Simulation results show that the IRA codes is capacity achieving. The error floor performance of IRA codes is analyzed and the modified encoding method is presented to lower the error floor.

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来源期刊

2011 IEEE Workshops of International Conference on Advanced Information Networking and Applications

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