| 基于II型H-ARQ系统速率可变低密度校验码的设计与研究 |
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| 引用本文： | 王单,王新梅. 基于II型H-ARQ系统速率可变低密度校验码的设计与研究[J]. 通信学报, 2006, 0(1) |
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| 作者姓名： | 王单 王新梅 |
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| 作者单位： | 西安电子科技大学ISN国家重点实验室 陕西西安710071 |
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| 基金项目： | 国家自然科学基金资助项目(60272057,60496316,60502046)~~ |
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| 摘 要： | 构造了一类用于II型H-ARQ系统、具有Z字形结构校验矩阵、性能优良的速率可变低密度校验码(RC-LDPC)。将渐进边增长(progressiveedgegrowth)算法推广应用到RC-LDPC码的构造中,扩大了码率动态变化范围,提高了码的性能。仿真结果表明将此类RC-LDPC码应用于II型H-ARQ系统,可获得较高的吞吐量,且其校验矩阵的Z字形结构极大地降低了系统实现的复杂度。
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| 关 键 词： | 速率可变码 低密度校验码 PEG算法 |
Design of rate-compatible low-density parity-check codes for type-II hybrid ARQ systems |
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| WANG Dan,WANG Xin-mei. Design of rate-compatible low-density parity-check codes for type-II hybrid ARQ systems[J]. Journal on Communications, 2006, 0(1) |
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| Authors: | WANG Dan WANG Xin-mei |
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| Abstract: | The design of powerful rate-compatible low-density parity-check codes(RC-LDPC)was constructed in zigzag structure for type-II hybrid ARQ systems.The generalized PEG algorithm was used in the process of constructing RC-LDPC codes to improve the performance of the proposed codes.Simulation results show that based on constructed RC-LDPC codes,a type-II hybrid ARQ system can achieve efficient throughput.In addition,very low-complexity encoding and decoding rules can be implemented due to the overall zigzag structure of these RC-LDPC codes. |
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| Keywords: | rate-compatible code low-density parity-check code PEG algorithm |
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