图像传输中基于LDPC码的改进IWBF译码算法

2010 IEEE International Conference on Wireless Communications, Networking and Information Security Pub Date : 2010-06-25 DOI:10.1109/WCINS.2010.5541758

Wang Zhong-xun, Yu Xin-qiao, Wang Xing-cheng, Guo Dong

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引用次数: 2

摘要

为了提高改进加权翻转算法(IWBF)的性能和译码收敛速度，提出了一种基于并行翻转算法每次迭代更新多个比特的算法。并将该算法应用于图像传输中。仿真结果表明:改进后的算法不仅使误码性能有了明显的提高，解码收敛速度也有了很大的提高，并且在通信中图像传输可以获得高速、高均匀性。

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An improved IWBF decoding algorithm based on LDPC codes in the image transmission

In order to improve the performance and the decoding convergence speed of the improved weighted bit-flipping algorithm (IWBF), an algorithm based on the characteristics of parallel bit-flipping algorithm that updates multiple bits in each iteration is presented here. Also this algorithm is used in the image transmission. Simulation results show that: improved algorithm not only enables significant improvement in bit error performance, the decoding convergence speed has also been greatly improved, and the image transmission in communication can obtain high speed and high equality.

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来源期刊

2010 IEEE International Conference on Wireless Communications, Networking and Information Security

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