| 相关衰落信道上LDPC码的性能分析 |
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| 引用本文： | 方锋华,李光球.相关衰落信道上LDPC码的性能分析[J].杭州电子科技大学学报,2011(5):37-40. |
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| 作者姓名： | 方锋华 李光球 |
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| 作者单位： | 杭州电子科技大学通信工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(60772067) |
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| 摘 要： | 该文使用高斯近似算法,推导相关Nakagami-m衰落信道上采用最大比合并分集接收的低密度奇偶校验码的误比特率闭合表达式.基于离散密度进化算法,计算低密度奇偶校验码无误译码时的信噪比门限值.仿真结果表明高斯近似能够较好的估计相关Nakagami-m衰落信道上低密度奇偶校验码的性能.
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| 关 键 词： | 衰落信道 最大比合并 高斯近似 低密度奇偶校验码 |
Performance Analysis of LDPC Codes in Correlated Fading Channels |
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| FANG Feng-hua,LI Guang-qiu.Performance Analysis of LDPC Codes in Correlated Fading Channels[J].Journal of Hangzhou Dianzi University,2011(5):37-40. |
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| Authors: | FANG Feng-hua LI Guang-qiu |
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| Affiliation: | FANG Feng-hua,LI Guang-qiu(School of Communication Engineering,Hangzhou Dianzi University,Hangzhou Zhejiang 310018,China) |
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| Abstract: | Using Gaussian approximation(GA) approach,this paper derives the closed-form BER expression of LDPC codes with MRC in correlated Nakagami-m fading channels.The signal-to-noise thresholds for error-free decoding are obtained using discretized density evolution(DE).Simulations results show that GA results provide a good estimate for the performance of LDPC codes in correlated Nakagami-m fading channels. |
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| Keywords: | fading channels maximum-ratio combining Gaussian approximation low-density parity-check codes |
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