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電子情報通信学会論文誌. A, 基礎・境界

A Burst Error Correcting Algorithm for Nonbinary LDPC Codes

Yusuke Kimata, Tadashi Wadayama

Published Mar 1, 2013• 0 citations
OpenAlex

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A New Nonbinary Quasi-cyclic LDPC Codes Construction Algorithm

Tong Ningning -, WU Yu-ping

An algorithm for constructing nonbinary Quasi-cyclic LDPC (QC-LDPC) codes on the basis of masking and puncturing techniques in consideration of the shortage of algebraic construction algorithm and time-varying performance of wireless channels is proposed . This scheme can reduce the complexity of the hardware implementation, enhance the error correction performance of the LDPC codes constructed by structure algorithm based on masking technology, and improve the average effectiveness of the communication system by realizing a rate-compatible encoding based on puncturing technology. The simulation results show that the nonbinary LDPC codes constructed with masking and puncturing techniques can provide significantly stronger error correction capabilities as compared with those constructed with algebraic method which are used directly.

International Journal of Advancements in Computing Technology•Apr 30, 2013•3 citations
The performances of nonbinary low-density parity-check(LDPC) codes are studied and simulated on the presented noise burst channel model.Compared to binary LDPC codes,the nonbinary LDPC codes have a better anti-burst-error performance.The reason is given by analyzing the process of decoding.The transformation between binary soft information and nonbinary initial soft information is also presented.Simulations show that nonbinary LDPC codes have advantages of error performance and iterative characteristics with different parameters for noise burst channels.
An algorithm for constructing nonbinary Quasi-cyclic LDPC (QC-LDPC) codes on the basis of masking and puncturing techniques in consideration of the shortage of algebraic construction algorithm and time-varying performance of wireless channels is proposed . This scheme can reduce the complexity of the hardware implementation, enhance the error correction performance of the LDPC codes constructed by structure algorithm based on masking technology, and improve the average effectiveness of the communication system by realizing a rate-compatible encoding based on puncturing technology. The simulation results show that the nonbinary LDPC codes constructed with masking and puncturing techniques can provide significantly stronger error correction capabilities as compared with those constructed with algebraic method which are used directly.